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->latency_offset = s->active_port->latency_offset;
315 s->latency_offset = 0;
317 s->save_volume = data->save_volume;
318 s->save_muted = data->save_muted;
320 pa_silence_memchunk_get(
321 &core->silence_cache,
327 s->thread_info.rtpoll = NULL;
328 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
329 (pa_free_cb_t) pa_sink_input_unref);
330 s->thread_info.soft_volume = s->soft_volume;
331 s->thread_info.soft_muted = s->muted;
332 s->thread_info.state = s->state;
333 s->thread_info.rewind_nbytes = 0;
334 s->thread_info.rewind_requested = false;
335 s->thread_info.max_rewind = 0;
336 s->thread_info.max_request = 0;
337 s->thread_info.requested_latency_valid = false;
338 s->thread_info.requested_latency = 0;
339 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
340 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
341 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
343 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
344 s->thread_info.volume_changes_tail = NULL;
345 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
346 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
347 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
348 s->thread_info.latency_offset = s->latency_offset;
350 /* FIXME: This should probably be moved to pa_sink_put() */
351 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
354 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
356 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
357 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
360 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
361 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
365 pa_source_new_data_init(&source_data);
366 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
367 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
368 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
369 source_data.name = pa_sprintf_malloc("%s.monitor", name);
370 source_data.driver = data->driver;
371 source_data.module = data->module;
372 source_data.card = data->card;
374 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
375 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
376 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
378 s->monitor_source = pa_source_new(core, &source_data,
379 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
380 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
382 pa_source_new_data_done(&source_data);
384 if (!s->monitor_source) {
390 s->monitor_source->monitor_of = s;
392 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
393 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
394 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
399 /* Called from main context */
400 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
403 pa_sink_state_t original_state;
406 pa_assert_ctl_context();
408 if (s->state == state)
411 original_state = s->state;
414 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
415 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
418 if ((ret = s->set_state(s, state)) < 0)
422 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
425 s->set_state(s, original_state);
432 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
433 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
434 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
437 if (suspend_change) {
441 /* We're suspending or resuming, tell everyone about it */
443 PA_IDXSET_FOREACH(i, s->inputs, idx)
444 if (s->state == PA_SINK_SUSPENDED &&
445 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
446 pa_sink_input_kill(i);
448 i->suspend(i, state == PA_SINK_SUSPENDED);
450 if (s->monitor_source)
451 pa_source_sync_suspend(s->monitor_source);
457 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
463 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
464 pa_sink_flags_t flags;
467 pa_assert(!s->write_volume || cb);
471 /* Save the current flags so we can tell if they've changed */
475 /* The sink implementor is responsible for setting decibel volume support */
476 s->flags |= PA_SINK_HW_VOLUME_CTRL;
478 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
479 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
480 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
483 /* If the flags have changed after init, let any clients know via a change event */
484 if (s->state != PA_SINK_INIT && flags != s->flags)
485 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
488 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
489 pa_sink_flags_t flags;
492 pa_assert(!cb || s->set_volume);
494 s->write_volume = cb;
496 /* Save the current flags so we can tell if they've changed */
500 s->flags |= PA_SINK_DEFERRED_VOLUME;
502 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
504 /* If the flags have changed after init, let any clients know via a change event */
505 if (s->state != PA_SINK_INIT && flags != s->flags)
506 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
509 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
515 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
516 pa_sink_flags_t flags;
522 /* Save the current flags so we can tell if they've changed */
526 s->flags |= PA_SINK_HW_MUTE_CTRL;
528 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
530 /* If the flags have changed after init, let any clients know via a change event */
531 if (s->state != PA_SINK_INIT && flags != s->flags)
532 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
535 static void enable_flat_volume(pa_sink *s, bool enable) {
536 pa_sink_flags_t flags;
540 /* Always follow the overall user preference here */
541 enable = enable && s->core->flat_volumes;
543 /* Save the current flags so we can tell if they've changed */
547 s->flags |= PA_SINK_FLAT_VOLUME;
549 s->flags &= ~PA_SINK_FLAT_VOLUME;
551 /* If the flags have changed after init, let any clients know via a change event */
552 if (s->state != PA_SINK_INIT && flags != s->flags)
553 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
556 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
557 pa_sink_flags_t flags;
561 /* Save the current flags so we can tell if they've changed */
565 s->flags |= PA_SINK_DECIBEL_VOLUME;
566 enable_flat_volume(s, true);
568 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
569 enable_flat_volume(s, false);
572 /* If the flags have changed after init, let any clients know via a change event */
573 if (s->state != PA_SINK_INIT && flags != s->flags)
574 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
577 /* Called from main context */
578 void pa_sink_put(pa_sink* s) {
579 pa_sink_assert_ref(s);
580 pa_assert_ctl_context();
582 pa_assert(s->state == PA_SINK_INIT);
583 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
585 /* The following fields must be initialized properly when calling _put() */
586 pa_assert(s->asyncmsgq);
587 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
589 /* Generally, flags should be initialized via pa_sink_new(). As a
590 * special exception we allow some volume related flags to be set
591 * between _new() and _put() by the callback setter functions above.
593 * Thus we implement a couple safeguards here which ensure the above
594 * setters were used (or at least the implementor made manual changes
595 * in a compatible way).
597 * Note: All of these flags set here can change over the life time
599 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
600 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
601 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
603 /* XXX: Currently decibel volume is disabled for all sinks that use volume
604 * sharing. When the master sink supports decibel volume, it would be good
605 * to have the flag also in the filter sink, but currently we don't do that
606 * so that the flags of the filter sink never change when it's moved from
607 * a master sink to another. One solution for this problem would be to
608 * remove user-visible volume altogether from filter sinks when volume
609 * sharing is used, but the current approach was easier to implement... */
610 /* We always support decibel volumes in software, otherwise we leave it to
611 * the sink implementor to set this flag as needed.
613 * Note: This flag can also change over the life time of the sink. */
614 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
615 pa_sink_enable_decibel_volume(s, true);
616 s->soft_volume = s->reference_volume;
619 /* If the sink implementor support DB volumes by itself, we should always
620 * try and enable flat volumes too */
621 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
622 enable_flat_volume(s, true);
624 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
625 pa_sink *root_sink = pa_sink_get_master(s);
627 pa_assert(root_sink);
629 s->reference_volume = root_sink->reference_volume;
630 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
632 s->real_volume = root_sink->real_volume;
633 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
635 /* We assume that if the sink implementor changed the default
636 * volume he did so in real_volume, because that is the usual
637 * place where he is supposed to place his changes. */
638 s->reference_volume = s->real_volume;
640 s->thread_info.soft_volume = s->soft_volume;
641 s->thread_info.soft_muted = s->muted;
642 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
644 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
645 || (s->base_volume == PA_VOLUME_NORM
646 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
647 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
648 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
649 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
650 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
652 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
653 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
654 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
656 if (s->suspend_cause)
657 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED) == 0);
659 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
661 pa_source_put(s->monitor_source);
663 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
664 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
667 /* Called from main context */
668 void pa_sink_unlink(pa_sink* s) {
670 pa_sink_input *i, PA_UNUSED *j = NULL;
673 pa_assert_ctl_context();
675 /* Please note that pa_sink_unlink() does more than simply
676 * reversing pa_sink_put(). It also undoes the registrations
677 * already done in pa_sink_new()! */
679 /* All operations here shall be idempotent, i.e. pa_sink_unlink()
680 * may be called multiple times on the same sink without bad
683 linked = PA_SINK_IS_LINKED(s->state);
686 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
688 if (s->state != PA_SINK_UNLINKED)
689 pa_namereg_unregister(s->core, s->name);
690 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
693 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
695 while ((i = pa_idxset_first(s->inputs, NULL))) {
697 pa_sink_input_kill(i);
702 sink_set_state(s, PA_SINK_UNLINKED);
704 s->state = PA_SINK_UNLINKED;
708 if (s->monitor_source)
709 pa_source_unlink(s->monitor_source);
712 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
713 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
717 /* Called from main context */
718 static void sink_free(pa_object *o) {
719 pa_sink *s = PA_SINK(o);
722 pa_assert_ctl_context();
723 pa_assert(pa_sink_refcnt(s) == 0);
725 if (PA_SINK_IS_LINKED(s->state))
728 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
730 pa_sink_volume_change_flush(s);
732 if (s->monitor_source) {
733 pa_source_unref(s->monitor_source);
734 s->monitor_source = NULL;
737 pa_idxset_free(s->inputs, NULL);
738 pa_hashmap_free(s->thread_info.inputs);
740 if (s->silence.memblock)
741 pa_memblock_unref(s->silence.memblock);
747 pa_proplist_free(s->proplist);
750 pa_hashmap_free(s->ports);
755 /* Called from main context, and not while the IO thread is active, please */
756 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
757 pa_sink_assert_ref(s);
758 pa_assert_ctl_context();
762 if (s->monitor_source)
763 pa_source_set_asyncmsgq(s->monitor_source, q);
766 /* Called from main context, and not while the IO thread is active, please */
767 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
768 pa_sink_flags_t old_flags;
769 pa_sink_input *input;
772 pa_sink_assert_ref(s);
773 pa_assert_ctl_context();
775 /* For now, allow only a minimal set of flags to be changed. */
776 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
778 old_flags = s->flags;
779 s->flags = (s->flags & ~mask) | (value & mask);
781 if (s->flags == old_flags)
784 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
785 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
787 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
788 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
789 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
791 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
792 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
794 if (s->monitor_source)
795 pa_source_update_flags(s->monitor_source,
796 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
797 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
798 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
799 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
801 PA_IDXSET_FOREACH(input, s->inputs, idx) {
802 if (input->origin_sink)
803 pa_sink_update_flags(input->origin_sink, mask, value);
807 /* Called from IO context, or before _put() from main context */
808 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
809 pa_sink_assert_ref(s);
810 pa_sink_assert_io_context(s);
812 s->thread_info.rtpoll = p;
814 if (s->monitor_source)
815 pa_source_set_rtpoll(s->monitor_source, p);
818 /* Called from main context */
819 int pa_sink_update_status(pa_sink*s) {
820 pa_sink_assert_ref(s);
821 pa_assert_ctl_context();
822 pa_assert(PA_SINK_IS_LINKED(s->state));
824 if (s->state == PA_SINK_SUSPENDED)
827 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
830 /* Called from any context - must be threadsafe */
831 void pa_sink_set_mixer_dirty(pa_sink *s, bool is_dirty) {
832 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
835 /* Called from main context */
836 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
837 pa_sink_assert_ref(s);
838 pa_assert_ctl_context();
839 pa_assert(PA_SINK_IS_LINKED(s->state));
840 pa_assert(cause != 0);
843 s->suspend_cause |= cause;
844 s->monitor_source->suspend_cause |= cause;
846 s->suspend_cause &= ~cause;
847 s->monitor_source->suspend_cause &= ~cause;
850 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
851 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
852 it'll be handled just fine. */
853 pa_sink_set_mixer_dirty(s, false);
854 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
855 if (s->active_port && s->set_port) {
856 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
857 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
858 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
861 s->set_port(s, s->active_port);
871 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
874 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
876 if (s->suspend_cause)
877 return sink_set_state(s, PA_SINK_SUSPENDED);
879 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
882 /* Called from main context */
883 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
884 pa_sink_input *i, *n;
887 pa_sink_assert_ref(s);
888 pa_assert_ctl_context();
889 pa_assert(PA_SINK_IS_LINKED(s->state));
894 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
895 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
897 pa_sink_input_ref(i);
899 if (pa_sink_input_start_move(i) >= 0)
902 pa_sink_input_unref(i);
908 /* Called from main context */
909 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
912 pa_sink_assert_ref(s);
913 pa_assert_ctl_context();
914 pa_assert(PA_SINK_IS_LINKED(s->state));
917 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
918 if (pa_sink_input_finish_move(i, s, save) < 0)
919 pa_sink_input_fail_move(i);
921 pa_sink_input_unref(i);
924 pa_queue_free(q, NULL);
927 /* Called from main context */
928 void pa_sink_move_all_fail(pa_queue *q) {
931 pa_assert_ctl_context();
934 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
935 pa_sink_input_fail_move(i);
936 pa_sink_input_unref(i);
939 pa_queue_free(q, NULL);
942 /* Called from IO thread context */
943 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
948 pa_sink_assert_ref(s);
949 pa_sink_assert_io_context(s);
951 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
952 size_t uf = i->thread_info.underrun_for_sink;
955 if (uf >= left_to_play) {
956 if (pa_sink_input_process_underrun(i))
959 else if (uf > result)
964 pa_log_debug("Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", (long) result, (long) left_to_play - result);
965 return left_to_play - result;
968 /* Called from IO thread context */
969 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
973 pa_sink_assert_ref(s);
974 pa_sink_assert_io_context(s);
975 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
977 /* If nobody requested this and this is actually no real rewind
978 * then we can short cut this. Please note that this means that
979 * not all rewind requests triggered upstream will always be
980 * translated in actual requests! */
981 if (!s->thread_info.rewind_requested && nbytes <= 0)
984 s->thread_info.rewind_nbytes = 0;
985 s->thread_info.rewind_requested = false;
988 pa_log_debug("Processing rewind...");
989 if (s->flags & PA_SINK_DEFERRED_VOLUME)
990 pa_sink_volume_change_rewind(s, nbytes);
993 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
994 pa_sink_input_assert_ref(i);
995 pa_sink_input_process_rewind(i, nbytes);
999 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1000 pa_source_process_rewind(s->monitor_source, nbytes);
1004 /* Called from IO thread context */
1005 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1009 size_t mixlength = *length;
1011 pa_sink_assert_ref(s);
1012 pa_sink_assert_io_context(s);
1015 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1016 pa_sink_input_assert_ref(i);
1018 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1020 if (mixlength == 0 || info->chunk.length < mixlength)
1021 mixlength = info->chunk.length;
1023 if (pa_memblock_is_silence(info->chunk.memblock)) {
1024 pa_memblock_unref(info->chunk.memblock);
1028 info->userdata = pa_sink_input_ref(i);
1030 pa_assert(info->chunk.memblock);
1031 pa_assert(info->chunk.length > 0);
1039 *length = mixlength;
1044 /* Called from IO thread context */
1045 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1049 unsigned n_unreffed = 0;
1051 pa_sink_assert_ref(s);
1052 pa_sink_assert_io_context(s);
1054 pa_assert(result->memblock);
1055 pa_assert(result->length > 0);
1057 /* We optimize for the case where the order of the inputs has not changed */
1059 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1061 pa_mix_info* m = NULL;
1063 pa_sink_input_assert_ref(i);
1065 /* Let's try to find the matching entry info the pa_mix_info array */
1066 for (j = 0; j < n; j ++) {
1068 if (info[p].userdata == i) {
1078 /* Drop read data */
1079 pa_sink_input_drop(i, result->length);
1081 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1083 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1084 void *ostate = NULL;
1085 pa_source_output *o;
1088 if (m && m->chunk.memblock) {
1090 pa_memblock_ref(c.memblock);
1091 pa_assert(result->length <= c.length);
1092 c.length = result->length;
1094 pa_memchunk_make_writable(&c, 0);
1095 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1098 pa_memblock_ref(c.memblock);
1099 pa_assert(result->length <= c.length);
1100 c.length = result->length;
1103 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1104 pa_source_output_assert_ref(o);
1105 pa_assert(o->direct_on_input == i);
1106 pa_source_post_direct(s->monitor_source, o, &c);
1109 pa_memblock_unref(c.memblock);
1114 if (m->chunk.memblock) {
1115 pa_memblock_unref(m->chunk.memblock);
1116 pa_memchunk_reset(&m->chunk);
1119 pa_sink_input_unref(m->userdata);
1126 /* Now drop references to entries that are included in the
1127 * pa_mix_info array but don't exist anymore */
1129 if (n_unreffed < n) {
1130 for (; n > 0; info++, n--) {
1132 pa_sink_input_unref(info->userdata);
1133 if (info->chunk.memblock)
1134 pa_memblock_unref(info->chunk.memblock);
1138 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1139 pa_source_post(s->monitor_source, result);
1142 /* Called from IO thread context */
1143 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1144 pa_mix_info info[MAX_MIX_CHANNELS];
1146 size_t block_size_max;
1148 pa_sink_assert_ref(s);
1149 pa_sink_assert_io_context(s);
1150 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1151 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1154 pa_assert(!s->thread_info.rewind_requested);
1155 pa_assert(s->thread_info.rewind_nbytes == 0);
1157 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1158 result->memblock = pa_memblock_ref(s->silence.memblock);
1159 result->index = s->silence.index;
1160 result->length = PA_MIN(s->silence.length, length);
1167 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1169 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1170 if (length > block_size_max)
1171 length = pa_frame_align(block_size_max, &s->sample_spec);
1173 pa_assert(length > 0);
1175 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1179 *result = s->silence;
1180 pa_memblock_ref(result->memblock);
1182 if (result->length > length)
1183 result->length = length;
1185 } else if (n == 1) {
1188 *result = info[0].chunk;
1189 pa_memblock_ref(result->memblock);
1191 if (result->length > length)
1192 result->length = length;
1194 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1196 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1197 pa_memblock_unref(result->memblock);
1198 pa_silence_memchunk_get(&s->core->silence_cache,
1203 } else if (!pa_cvolume_is_norm(&volume)) {
1204 pa_memchunk_make_writable(result, 0);
1205 pa_volume_memchunk(result, &s->sample_spec, &volume);
1209 result->memblock = pa_memblock_new(s->core->mempool, length);
1211 ptr = pa_memblock_acquire(result->memblock);
1212 result->length = pa_mix(info, n,
1215 &s->thread_info.soft_volume,
1216 s->thread_info.soft_muted);
1217 pa_memblock_release(result->memblock);
1222 inputs_drop(s, info, n, result);
1227 /* Called from IO thread context */
1228 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1229 pa_mix_info info[MAX_MIX_CHANNELS];
1231 size_t length, block_size_max;
1233 pa_sink_assert_ref(s);
1234 pa_sink_assert_io_context(s);
1235 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1237 pa_assert(target->memblock);
1238 pa_assert(target->length > 0);
1239 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1241 pa_assert(!s->thread_info.rewind_requested);
1242 pa_assert(s->thread_info.rewind_nbytes == 0);
1244 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1245 pa_silence_memchunk(target, &s->sample_spec);
1251 length = target->length;
1252 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1253 if (length > block_size_max)
1254 length = pa_frame_align(block_size_max, &s->sample_spec);
1256 pa_assert(length > 0);
1258 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1261 if (target->length > length)
1262 target->length = length;
1264 pa_silence_memchunk(target, &s->sample_spec);
1265 } else if (n == 1) {
1268 if (target->length > length)
1269 target->length = length;
1271 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1273 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1274 pa_silence_memchunk(target, &s->sample_spec);
1278 vchunk = info[0].chunk;
1279 pa_memblock_ref(vchunk.memblock);
1281 if (vchunk.length > length)
1282 vchunk.length = length;
1284 if (!pa_cvolume_is_norm(&volume)) {
1285 pa_memchunk_make_writable(&vchunk, 0);
1286 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1289 pa_memchunk_memcpy(target, &vchunk);
1290 pa_memblock_unref(vchunk.memblock);
1296 ptr = pa_memblock_acquire(target->memblock);
1298 target->length = pa_mix(info, n,
1299 (uint8_t*) ptr + target->index, length,
1301 &s->thread_info.soft_volume,
1302 s->thread_info.soft_muted);
1304 pa_memblock_release(target->memblock);
1307 inputs_drop(s, info, n, target);
1312 /* Called from IO thread context */
1313 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1317 pa_sink_assert_ref(s);
1318 pa_sink_assert_io_context(s);
1319 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1321 pa_assert(target->memblock);
1322 pa_assert(target->length > 0);
1323 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1325 pa_assert(!s->thread_info.rewind_requested);
1326 pa_assert(s->thread_info.rewind_nbytes == 0);
1328 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1329 pa_silence_memchunk(target, &s->sample_spec);
1342 pa_sink_render_into(s, &chunk);
1351 /* Called from IO thread context */
1352 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1353 pa_sink_assert_ref(s);
1354 pa_sink_assert_io_context(s);
1355 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1356 pa_assert(length > 0);
1357 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1360 pa_assert(!s->thread_info.rewind_requested);
1361 pa_assert(s->thread_info.rewind_nbytes == 0);
1365 pa_sink_render(s, length, result);
1367 if (result->length < length) {
1370 pa_memchunk_make_writable(result, length);
1372 chunk.memblock = result->memblock;
1373 chunk.index = result->index + result->length;
1374 chunk.length = length - result->length;
1376 pa_sink_render_into_full(s, &chunk);
1378 result->length = length;
1384 /* Called from main thread */
1385 int pa_sink_update_rate(pa_sink *s, uint32_t rate, bool passthrough) {
1387 uint32_t desired_rate = rate;
1388 uint32_t default_rate = s->default_sample_rate;
1389 uint32_t alternate_rate = s->alternate_sample_rate;
1392 bool default_rate_is_usable = false;
1393 bool alternate_rate_is_usable = false;
1395 if (rate == s->sample_spec.rate)
1398 if (!s->update_rate)
1401 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough)) {
1402 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1406 if (PA_SINK_IS_RUNNING(s->state)) {
1407 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1408 s->sample_spec.rate);
1412 if (s->monitor_source) {
1413 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1414 pa_log_info("Cannot update rate, monitor source is RUNNING");
1419 if (PA_UNLIKELY(!pa_sample_rate_valid(desired_rate)))
1422 if (!passthrough && default_rate != desired_rate && alternate_rate != desired_rate) {
1423 if (default_rate % 11025 == 0 && desired_rate % 11025 == 0)
1424 default_rate_is_usable = true;
1425 if (default_rate % 4000 == 0 && desired_rate % 4000 == 0)
1426 default_rate_is_usable = true;
1427 if (alternate_rate && alternate_rate % 11025 == 0 && desired_rate % 11025 == 0)
1428 alternate_rate_is_usable = true;
1429 if (alternate_rate && alternate_rate % 4000 == 0 && desired_rate % 4000 == 0)
1430 alternate_rate_is_usable = true;
1432 if (alternate_rate_is_usable && !default_rate_is_usable)
1433 desired_rate = alternate_rate;
1435 desired_rate = default_rate;
1438 if (desired_rate == s->sample_spec.rate)
1441 if (!passthrough && pa_sink_used_by(s) > 0)
1444 pa_log_debug("Suspending sink %s due to changing the sample rate.", s->name);
1445 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1447 if (s->update_rate(s, desired_rate) >= 0) {
1448 /* update monitor source as well */
1449 if (s->monitor_source && !passthrough)
1450 pa_source_update_rate(s->monitor_source, desired_rate, false);
1451 pa_log_info("Changed sampling rate successfully");
1453 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1454 if (i->state == PA_SINK_INPUT_CORKED)
1455 pa_sink_input_update_rate(i);
1461 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1466 /* Called from main thread */
1467 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1470 pa_sink_assert_ref(s);
1471 pa_assert_ctl_context();
1472 pa_assert(PA_SINK_IS_LINKED(s->state));
1474 /* The returned value is supposed to be in the time domain of the sound card! */
1476 if (s->state == PA_SINK_SUSPENDED)
1479 if (!(s->flags & PA_SINK_LATENCY))
1482 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1484 /* usec is unsigned, so check that the offset can be added to usec without
1486 if (-s->latency_offset <= (int64_t) usec)
1487 usec += s->latency_offset;
1494 /* Called from IO thread */
1495 pa_usec_t pa_sink_get_latency_within_thread(pa_sink *s) {
1499 pa_sink_assert_ref(s);
1500 pa_sink_assert_io_context(s);
1501 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1503 /* The returned value is supposed to be in the time domain of the sound card! */
1505 if (s->thread_info.state == PA_SINK_SUSPENDED)
1508 if (!(s->flags & PA_SINK_LATENCY))
1511 o = PA_MSGOBJECT(s);
1513 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1515 if (o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1518 /* usec is unsigned, so check that the offset can be added to usec without
1520 if (-s->thread_info.latency_offset <= (int64_t) usec)
1521 usec += s->thread_info.latency_offset;
1528 /* Called from the main thread (and also from the IO thread while the main
1529 * thread is waiting).
1531 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1532 * set. Instead, flat volume mode is detected by checking whether the root sink
1533 * has the flag set. */
1534 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1535 pa_sink_assert_ref(s);
1537 s = pa_sink_get_master(s);
1540 return (s->flags & PA_SINK_FLAT_VOLUME);
1545 /* Called from the main thread (and also from the IO thread while the main
1546 * thread is waiting). */
1547 pa_sink *pa_sink_get_master(pa_sink *s) {
1548 pa_sink_assert_ref(s);
1550 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1551 if (PA_UNLIKELY(!s->input_to_master))
1554 s = s->input_to_master->sink;
1560 /* Called from main context */
1561 bool pa_sink_is_filter(pa_sink *s) {
1562 pa_sink_assert_ref(s);
1564 return (s->input_to_master != NULL);
1567 /* Called from main context */
1568 bool pa_sink_is_passthrough(pa_sink *s) {
1569 pa_sink_input *alt_i;
1572 pa_sink_assert_ref(s);
1574 /* one and only one PASSTHROUGH input can possibly be connected */
1575 if (pa_idxset_size(s->inputs) == 1) {
1576 alt_i = pa_idxset_first(s->inputs, &idx);
1578 if (pa_sink_input_is_passthrough(alt_i))
1585 /* Called from main context */
1586 void pa_sink_enter_passthrough(pa_sink *s) {
1589 /* disable the monitor in passthrough mode */
1590 if (s->monitor_source) {
1591 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1592 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1595 /* set the volume to NORM */
1596 s->saved_volume = *pa_sink_get_volume(s, true);
1597 s->saved_save_volume = s->save_volume;
1599 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1600 pa_sink_set_volume(s, &volume, true, false);
1603 /* Called from main context */
1604 void pa_sink_leave_passthrough(pa_sink *s) {
1605 /* Unsuspend monitor */
1606 if (s->monitor_source) {
1607 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1608 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1611 /* Restore sink volume to what it was before we entered passthrough mode */
1612 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1614 pa_cvolume_init(&s->saved_volume);
1615 s->saved_save_volume = false;
1618 /* Called from main context. */
1619 static void compute_reference_ratio(pa_sink_input *i) {
1621 pa_cvolume remapped;
1625 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1628 * Calculates the reference ratio from the sink's reference
1629 * volume. This basically calculates:
1631 * i->reference_ratio = i->volume / i->sink->reference_volume
1634 remapped = i->sink->reference_volume;
1635 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1637 ratio = i->reference_ratio;
1639 for (c = 0; c < i->sample_spec.channels; c++) {
1641 /* We don't update when the sink volume is 0 anyway */
1642 if (remapped.values[c] <= PA_VOLUME_MUTED)
1645 /* Don't update the reference ratio unless necessary */
1646 if (pa_sw_volume_multiply(
1648 remapped.values[c]) == i->volume.values[c])
1651 ratio.values[c] = pa_sw_volume_divide(
1652 i->volume.values[c],
1653 remapped.values[c]);
1656 pa_sink_input_set_reference_ratio(i, &ratio);
1659 /* Called from main context. Only called for the root sink in volume sharing
1660 * cases, except for internal recursive calls. */
1661 static void compute_reference_ratios(pa_sink *s) {
1665 pa_sink_assert_ref(s);
1666 pa_assert_ctl_context();
1667 pa_assert(PA_SINK_IS_LINKED(s->state));
1668 pa_assert(pa_sink_flat_volume_enabled(s));
1670 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1671 compute_reference_ratio(i);
1673 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1674 compute_reference_ratios(i->origin_sink);
1678 /* Called from main context. Only called for the root sink in volume sharing
1679 * cases, except for internal recursive calls. */
1680 static void compute_real_ratios(pa_sink *s) {
1684 pa_sink_assert_ref(s);
1685 pa_assert_ctl_context();
1686 pa_assert(PA_SINK_IS_LINKED(s->state));
1687 pa_assert(pa_sink_flat_volume_enabled(s));
1689 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1691 pa_cvolume remapped;
1693 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1694 /* The origin sink uses volume sharing, so this input's real ratio
1695 * is handled as a special case - the real ratio must be 0 dB, and
1696 * as a result i->soft_volume must equal i->volume_factor. */
1697 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1698 i->soft_volume = i->volume_factor;
1700 compute_real_ratios(i->origin_sink);
1706 * This basically calculates:
1708 * i->real_ratio := i->volume / s->real_volume
1709 * i->soft_volume := i->real_ratio * i->volume_factor
1712 remapped = s->real_volume;
1713 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1715 i->real_ratio.channels = i->sample_spec.channels;
1716 i->soft_volume.channels = i->sample_spec.channels;
1718 for (c = 0; c < i->sample_spec.channels; c++) {
1720 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1721 /* We leave i->real_ratio untouched */
1722 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1726 /* Don't lose accuracy unless necessary */
1727 if (pa_sw_volume_multiply(
1728 i->real_ratio.values[c],
1729 remapped.values[c]) != i->volume.values[c])
1731 i->real_ratio.values[c] = pa_sw_volume_divide(
1732 i->volume.values[c],
1733 remapped.values[c]);
1735 i->soft_volume.values[c] = pa_sw_volume_multiply(
1736 i->real_ratio.values[c],
1737 i->volume_factor.values[c]);
1740 /* We don't copy the soft_volume to the thread_info data
1741 * here. That must be done by the caller */
1745 static pa_cvolume *cvolume_remap_minimal_impact(
1747 const pa_cvolume *template,
1748 const pa_channel_map *from,
1749 const pa_channel_map *to) {
1754 pa_assert(template);
1757 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1758 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1760 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1761 * mapping from sink input to sink volumes:
1763 * If template is a possible remapping from v it is used instead
1764 * of remapping anew.
1766 * If the channel maps don't match we set an all-channel volume on
1767 * the sink to ensure that changing a volume on one stream has no
1768 * effect that cannot be compensated for in another stream that
1769 * does not have the same channel map as the sink. */
1771 if (pa_channel_map_equal(from, to))
1775 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1780 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1784 /* Called from main thread. Only called for the root sink in volume sharing
1785 * cases, except for internal recursive calls. */
1786 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1790 pa_sink_assert_ref(s);
1791 pa_assert(max_volume);
1792 pa_assert(channel_map);
1793 pa_assert(pa_sink_flat_volume_enabled(s));
1795 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1796 pa_cvolume remapped;
1798 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1799 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1801 /* Ignore this input. The origin sink uses volume sharing, so this
1802 * input's volume will be set to be equal to the root sink's real
1803 * volume. Obviously this input's current volume must not then
1804 * affect what the root sink's real volume will be. */
1808 remapped = i->volume;
1809 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1810 pa_cvolume_merge(max_volume, max_volume, &remapped);
1814 /* Called from main thread. Only called for the root sink in volume sharing
1815 * cases, except for internal recursive calls. */
1816 static bool has_inputs(pa_sink *s) {
1820 pa_sink_assert_ref(s);
1822 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1823 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1830 /* Called from main thread. Only called for the root sink in volume sharing
1831 * cases, except for internal recursive calls. */
1832 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1836 pa_sink_assert_ref(s);
1837 pa_assert(new_volume);
1838 pa_assert(channel_map);
1840 s->real_volume = *new_volume;
1841 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1843 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1844 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1845 if (pa_sink_flat_volume_enabled(s)) {
1846 pa_cvolume new_input_volume;
1848 /* Follow the root sink's real volume. */
1849 new_input_volume = *new_volume;
1850 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1851 pa_sink_input_set_volume_direct(i, &new_input_volume);
1852 compute_reference_ratio(i);
1855 update_real_volume(i->origin_sink, new_volume, channel_map);
1860 /* Called from main thread. Only called for the root sink in shared volume
1862 static void compute_real_volume(pa_sink *s) {
1863 pa_sink_assert_ref(s);
1864 pa_assert_ctl_context();
1865 pa_assert(PA_SINK_IS_LINKED(s->state));
1866 pa_assert(pa_sink_flat_volume_enabled(s));
1867 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1869 /* This determines the maximum volume of all streams and sets
1870 * s->real_volume accordingly. */
1872 if (!has_inputs(s)) {
1873 /* In the special case that we have no sink inputs we leave the
1874 * volume unmodified. */
1875 update_real_volume(s, &s->reference_volume, &s->channel_map);
1879 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1881 /* First let's determine the new maximum volume of all inputs
1882 * connected to this sink */
1883 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1884 update_real_volume(s, &s->real_volume, &s->channel_map);
1886 /* Then, let's update the real ratios/soft volumes of all inputs
1887 * connected to this sink */
1888 compute_real_ratios(s);
1891 /* Called from main thread. Only called for the root sink in shared volume
1892 * cases, except for internal recursive calls. */
1893 static void propagate_reference_volume(pa_sink *s) {
1897 pa_sink_assert_ref(s);
1898 pa_assert_ctl_context();
1899 pa_assert(PA_SINK_IS_LINKED(s->state));
1900 pa_assert(pa_sink_flat_volume_enabled(s));
1902 /* This is called whenever the sink volume changes that is not
1903 * caused by a sink input volume change. We need to fix up the
1904 * sink input volumes accordingly */
1906 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1907 pa_cvolume new_volume;
1909 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1910 propagate_reference_volume(i->origin_sink);
1912 /* Since the origin sink uses volume sharing, this input's volume
1913 * needs to be updated to match the root sink's real volume, but
1914 * that will be done later in update_shared_real_volume(). */
1918 /* This basically calculates:
1920 * i->volume := s->reference_volume * i->reference_ratio */
1922 new_volume = s->reference_volume;
1923 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
1924 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
1925 pa_sink_input_set_volume_direct(i, &new_volume);
1929 /* Called from main thread. Only called for the root sink in volume sharing
1930 * cases, except for internal recursive calls. The return value indicates
1931 * whether any reference volume actually changed. */
1932 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
1934 bool reference_volume_changed;
1938 pa_sink_assert_ref(s);
1939 pa_assert(PA_SINK_IS_LINKED(s->state));
1941 pa_assert(channel_map);
1942 pa_assert(pa_cvolume_valid(v));
1945 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1947 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1948 pa_sink_set_reference_volume_direct(s, &volume);
1950 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1952 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1953 /* If the root sink's volume doesn't change, then there can't be any
1954 * changes in the other sinks in the sink tree either.
1956 * It's probably theoretically possible that even if the root sink's
1957 * volume changes slightly, some filter sink doesn't change its volume
1958 * due to rounding errors. If that happens, we still want to propagate
1959 * the changed root sink volume to the sinks connected to the
1960 * intermediate sink that didn't change its volume. This theoretical
1961 * possibility is the reason why we have that !(s->flags &
1962 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1963 * notice even if we returned here false always if
1964 * reference_volume_changed is false. */
1967 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1968 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1969 update_reference_volume(i->origin_sink, v, channel_map, false);
1975 /* Called from main thread */
1976 void pa_sink_set_volume(
1978 const pa_cvolume *volume,
1982 pa_cvolume new_reference_volume;
1985 pa_sink_assert_ref(s);
1986 pa_assert_ctl_context();
1987 pa_assert(PA_SINK_IS_LINKED(s->state));
1988 pa_assert(!volume || pa_cvolume_valid(volume));
1989 pa_assert(volume || pa_sink_flat_volume_enabled(s));
1990 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1992 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
1993 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1994 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1995 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
1999 /* In case of volume sharing, the volume is set for the root sink first,
2000 * from which it's then propagated to the sharing sinks. */
2001 root_sink = pa_sink_get_master(s);
2003 if (PA_UNLIKELY(!root_sink))
2006 /* As a special exception we accept mono volumes on all sinks --
2007 * even on those with more complex channel maps */
2010 if (pa_cvolume_compatible(volume, &s->sample_spec))
2011 new_reference_volume = *volume;
2013 new_reference_volume = s->reference_volume;
2014 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2017 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2019 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2020 if (pa_sink_flat_volume_enabled(root_sink)) {
2021 /* OK, propagate this volume change back to the inputs */
2022 propagate_reference_volume(root_sink);
2024 /* And now recalculate the real volume */
2025 compute_real_volume(root_sink);
2027 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2031 /* If volume is NULL we synchronize the sink's real and
2032 * reference volumes with the stream volumes. */
2034 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2036 /* Ok, let's determine the new real volume */
2037 compute_real_volume(root_sink);
2039 /* Let's 'push' the reference volume if necessary */
2040 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2041 /* If the sink and its root don't have the same number of channels, we need to remap */
2042 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2043 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2044 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2046 /* Now that the reference volume is updated, we can update the streams'
2047 * reference ratios. */
2048 compute_reference_ratios(root_sink);
2051 if (root_sink->set_volume) {
2052 /* If we have a function set_volume(), then we do not apply a
2053 * soft volume by default. However, set_volume() is free to
2054 * apply one to root_sink->soft_volume */
2056 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2057 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2058 root_sink->set_volume(root_sink);
2061 /* If we have no function set_volume(), then the soft volume
2062 * becomes the real volume */
2063 root_sink->soft_volume = root_sink->real_volume;
2065 /* This tells the sink that soft volume and/or real volume changed */
2067 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2070 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2071 * Only to be called by sink implementor */
2072 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2074 pa_sink_assert_ref(s);
2075 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2077 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2078 pa_sink_assert_io_context(s);
2080 pa_assert_ctl_context();
2083 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2085 s->soft_volume = *volume;
2087 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2088 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2090 s->thread_info.soft_volume = s->soft_volume;
2093 /* Called from the main thread. Only called for the root sink in volume sharing
2094 * cases, except for internal recursive calls. */
2095 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2099 pa_sink_assert_ref(s);
2100 pa_assert(old_real_volume);
2101 pa_assert_ctl_context();
2102 pa_assert(PA_SINK_IS_LINKED(s->state));
2104 /* This is called when the hardware's real volume changes due to
2105 * some external event. We copy the real volume into our
2106 * reference volume and then rebuild the stream volumes based on
2107 * i->real_ratio which should stay fixed. */
2109 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2110 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2113 /* 1. Make the real volume the reference volume */
2114 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2117 if (pa_sink_flat_volume_enabled(s)) {
2119 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2120 pa_cvolume new_volume;
2122 /* 2. Since the sink's reference and real volumes are equal
2123 * now our ratios should be too. */
2124 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2126 /* 3. Recalculate the new stream reference volume based on the
2127 * reference ratio and the sink's reference volume.
2129 * This basically calculates:
2131 * i->volume = s->reference_volume * i->reference_ratio
2133 * This is identical to propagate_reference_volume() */
2134 new_volume = s->reference_volume;
2135 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2136 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2137 pa_sink_input_set_volume_direct(i, &new_volume);
2139 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2140 propagate_real_volume(i->origin_sink, old_real_volume);
2144 /* Something got changed in the hardware. It probably makes sense
2145 * to save changed hw settings given that hw volume changes not
2146 * triggered by PA are almost certainly done by the user. */
2147 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2148 s->save_volume = true;
2151 /* Called from io thread */
2152 void pa_sink_update_volume_and_mute(pa_sink *s) {
2154 pa_sink_assert_io_context(s);
2156 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2159 /* Called from main thread */
2160 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2161 pa_sink_assert_ref(s);
2162 pa_assert_ctl_context();
2163 pa_assert(PA_SINK_IS_LINKED(s->state));
2165 if (s->refresh_volume || force_refresh) {
2166 struct pa_cvolume old_real_volume;
2168 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2170 old_real_volume = s->real_volume;
2172 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2175 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2177 update_real_volume(s, &s->real_volume, &s->channel_map);
2178 propagate_real_volume(s, &old_real_volume);
2181 return &s->reference_volume;
2184 /* Called from main thread. In volume sharing cases, only the root sink may
2186 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2187 pa_cvolume old_real_volume;
2189 pa_sink_assert_ref(s);
2190 pa_assert_ctl_context();
2191 pa_assert(PA_SINK_IS_LINKED(s->state));
2192 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2194 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2196 old_real_volume = s->real_volume;
2197 update_real_volume(s, new_real_volume, &s->channel_map);
2198 propagate_real_volume(s, &old_real_volume);
2201 /* Called from main thread */
2202 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2205 pa_sink_assert_ref(s);
2206 pa_assert_ctl_context();
2208 old_muted = s->muted;
2210 if (mute == old_muted) {
2211 s->save_muted |= save;
2216 s->save_muted = save;
2218 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2219 s->set_mute_in_progress = true;
2221 s->set_mute_in_progress = false;
2224 if (!PA_SINK_IS_LINKED(s->state))
2227 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2228 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2229 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2230 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2233 /* Called from main thread */
2234 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2236 pa_sink_assert_ref(s);
2237 pa_assert_ctl_context();
2238 pa_assert(PA_SINK_IS_LINKED(s->state));
2240 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2243 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2244 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2245 pa_sink_mute_changed(s, mute);
2247 if (s->get_mute(s, &mute) >= 0)
2248 pa_sink_mute_changed(s, mute);
2255 /* Called from main thread */
2256 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2257 pa_sink_assert_ref(s);
2258 pa_assert_ctl_context();
2259 pa_assert(PA_SINK_IS_LINKED(s->state));
2261 if (s->set_mute_in_progress)
2264 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2265 * but we must have this here also, because the save parameter of
2266 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2267 * the mute state when it shouldn't be saved). */
2268 if (new_muted == s->muted)
2271 pa_sink_set_mute(s, new_muted, true);
2274 /* Called from main thread */
2275 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2276 pa_sink_assert_ref(s);
2277 pa_assert_ctl_context();
2280 pa_proplist_update(s->proplist, mode, p);
2282 if (PA_SINK_IS_LINKED(s->state)) {
2283 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2284 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2290 /* Called from main thread */
2291 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2292 void pa_sink_set_description(pa_sink *s, const char *description) {
2294 pa_sink_assert_ref(s);
2295 pa_assert_ctl_context();
2297 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2300 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2302 if (old && description && pa_streq(old, description))
2306 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2308 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2310 if (s->monitor_source) {
2313 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2314 pa_source_set_description(s->monitor_source, n);
2318 if (PA_SINK_IS_LINKED(s->state)) {
2319 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2320 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2324 /* Called from main thread */
2325 unsigned pa_sink_linked_by(pa_sink *s) {
2328 pa_sink_assert_ref(s);
2329 pa_assert_ctl_context();
2330 pa_assert(PA_SINK_IS_LINKED(s->state));
2332 ret = pa_idxset_size(s->inputs);
2334 /* We add in the number of streams connected to us here. Please
2335 * note the asymmetry to pa_sink_used_by()! */
2337 if (s->monitor_source)
2338 ret += pa_source_linked_by(s->monitor_source);
2343 /* Called from main thread */
2344 unsigned pa_sink_used_by(pa_sink *s) {
2347 pa_sink_assert_ref(s);
2348 pa_assert_ctl_context();
2349 pa_assert(PA_SINK_IS_LINKED(s->state));
2351 ret = pa_idxset_size(s->inputs);
2352 pa_assert(ret >= s->n_corked);
2354 /* Streams connected to our monitor source do not matter for
2355 * pa_sink_used_by()!.*/
2357 return ret - s->n_corked;
2360 /* Called from main thread */
2361 unsigned pa_sink_check_suspend(pa_sink *s) {
2366 pa_sink_assert_ref(s);
2367 pa_assert_ctl_context();
2369 if (!PA_SINK_IS_LINKED(s->state))
2374 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2375 pa_sink_input_state_t st;
2377 st = pa_sink_input_get_state(i);
2379 /* We do not assert here. It is perfectly valid for a sink input to
2380 * be in the INIT state (i.e. created, marked done but not yet put)
2381 * and we should not care if it's unlinked as it won't contribute
2382 * towards our busy status.
2384 if (!PA_SINK_INPUT_IS_LINKED(st))
2387 if (st == PA_SINK_INPUT_CORKED)
2390 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2396 if (s->monitor_source)
2397 ret += pa_source_check_suspend(s->monitor_source);
2402 /* Called from the IO thread */
2403 static void sync_input_volumes_within_thread(pa_sink *s) {
2407 pa_sink_assert_ref(s);
2408 pa_sink_assert_io_context(s);
2410 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2411 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2414 i->thread_info.soft_volume = i->soft_volume;
2415 pa_sink_input_request_rewind(i, 0, true, false, false);
2419 /* Called from the IO thread. Only called for the root sink in volume sharing
2420 * cases, except for internal recursive calls. */
2421 static void set_shared_volume_within_thread(pa_sink *s) {
2422 pa_sink_input *i = NULL;
2425 pa_sink_assert_ref(s);
2427 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2429 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2430 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2431 set_shared_volume_within_thread(i->origin_sink);
2435 /* Called from IO thread, except when it is not */
2436 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2437 pa_sink *s = PA_SINK(o);
2438 pa_sink_assert_ref(s);
2440 switch ((pa_sink_message_t) code) {
2442 case PA_SINK_MESSAGE_ADD_INPUT: {
2443 pa_sink_input *i = PA_SINK_INPUT(userdata);
2445 /* If you change anything here, make sure to change the
2446 * sink input handling a few lines down at
2447 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2449 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2451 /* Since the caller sleeps in pa_sink_input_put(), we can
2452 * safely access data outside of thread_info even though
2455 if ((i->thread_info.sync_prev = i->sync_prev)) {
2456 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2457 pa_assert(i->sync_prev->sync_next == i);
2458 i->thread_info.sync_prev->thread_info.sync_next = i;
2461 if ((i->thread_info.sync_next = i->sync_next)) {
2462 pa_assert(i->sink == i->thread_info.sync_next->sink);
2463 pa_assert(i->sync_next->sync_prev == i);
2464 i->thread_info.sync_next->thread_info.sync_prev = i;
2467 pa_assert(!i->thread_info.attached);
2468 i->thread_info.attached = true;
2473 pa_sink_input_set_state_within_thread(i, i->state);
2475 /* The requested latency of the sink input needs to be fixed up and
2476 * then configured on the sink. If this causes the sink latency to
2477 * go down, the sink implementor is responsible for doing a rewind
2478 * in the update_requested_latency() callback to ensure that the
2479 * sink buffer doesn't contain more data than what the new latency
2482 * XXX: Does it really make sense to push this responsibility to
2483 * the sink implementors? Wouldn't it be better to do it once in
2484 * the core than many times in the modules? */
2486 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2487 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2489 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2490 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2492 /* We don't rewind here automatically. This is left to the
2493 * sink input implementor because some sink inputs need a
2494 * slow start, i.e. need some time to buffer client
2495 * samples before beginning streaming.
2497 * XXX: Does it really make sense to push this functionality to
2498 * the sink implementors? Wouldn't it be better to do it once in
2499 * the core than many times in the modules? */
2501 /* In flat volume mode we need to update the volume as
2503 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2506 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2507 pa_sink_input *i = PA_SINK_INPUT(userdata);
2509 /* If you change anything here, make sure to change the
2510 * sink input handling a few lines down at
2511 * PA_SINK_MESSAGE_START_MOVE, too. */
2516 pa_sink_input_set_state_within_thread(i, i->state);
2518 pa_assert(i->thread_info.attached);
2519 i->thread_info.attached = false;
2521 /* Since the caller sleeps in pa_sink_input_unlink(),
2522 * we can safely access data outside of thread_info even
2523 * though it is mutable */
2525 pa_assert(!i->sync_prev);
2526 pa_assert(!i->sync_next);
2528 if (i->thread_info.sync_prev) {
2529 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2530 i->thread_info.sync_prev = NULL;
2533 if (i->thread_info.sync_next) {
2534 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2535 i->thread_info.sync_next = NULL;
2538 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2539 pa_sink_invalidate_requested_latency(s, true);
2540 pa_sink_request_rewind(s, (size_t) -1);
2542 /* In flat volume mode we need to update the volume as
2544 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2547 case PA_SINK_MESSAGE_START_MOVE: {
2548 pa_sink_input *i = PA_SINK_INPUT(userdata);
2550 /* We don't support moving synchronized streams. */
2551 pa_assert(!i->sync_prev);
2552 pa_assert(!i->sync_next);
2553 pa_assert(!i->thread_info.sync_next);
2554 pa_assert(!i->thread_info.sync_prev);
2556 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2558 size_t sink_nbytes, total_nbytes;
2560 /* The old sink probably has some audio from this
2561 * stream in its buffer. We want to "take it back" as
2562 * much as possible and play it to the new sink. We
2563 * don't know at this point how much the old sink can
2564 * rewind. We have to pick something, and that
2565 * something is the full latency of the old sink here.
2566 * So we rewind the stream buffer by the sink latency
2567 * amount, which may be more than what we should
2568 * rewind. This can result in a chunk of audio being
2569 * played both to the old sink and the new sink.
2571 * FIXME: Fix this code so that we don't have to make
2572 * guesses about how much the sink will actually be
2573 * able to rewind. If someone comes up with a solution
2574 * for this, something to note is that the part of the
2575 * latency that the old sink couldn't rewind should
2576 * ideally be compensated after the stream has moved
2577 * to the new sink by adding silence. The new sink
2578 * most likely can't start playing the moved stream
2579 * immediately, and that gap should be removed from
2580 * the "compensation silence" (at least at the time of
2581 * writing this, the move finish code will actually
2582 * already take care of dropping the new sink's
2583 * unrewindable latency, so taking into account the
2584 * unrewindable latency of the old sink is the only
2587 * The render_memblockq contents are discarded,
2588 * because when the sink changes, the format of the
2589 * audio stored in the render_memblockq may change
2590 * too, making the stored audio invalid. FIXME:
2591 * However, the read and write indices are moved back
2592 * the same amount, so if they are not the same now,
2593 * they won't be the same after the rewind either. If
2594 * the write index of the render_memblockq is ahead of
2595 * the read index, then the render_memblockq will feed
2596 * the new sink some silence first, which it shouldn't
2597 * do. The write index should be flushed to be the
2598 * same as the read index. */
2600 /* Get the latency of the sink */
2601 usec = pa_sink_get_latency_within_thread(s);
2602 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2603 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2605 if (total_nbytes > 0) {
2606 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2607 i->thread_info.rewrite_flush = true;
2608 pa_sink_input_process_rewind(i, sink_nbytes);
2615 pa_assert(i->thread_info.attached);
2616 i->thread_info.attached = false;
2618 /* Let's remove the sink input ...*/
2619 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2621 pa_sink_invalidate_requested_latency(s, true);
2623 pa_log_debug("Requesting rewind due to started move");
2624 pa_sink_request_rewind(s, (size_t) -1);
2626 /* In flat volume mode we need to update the volume as
2628 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2631 case PA_SINK_MESSAGE_FINISH_MOVE: {
2632 pa_sink_input *i = PA_SINK_INPUT(userdata);
2634 /* We don't support moving synchronized streams. */
2635 pa_assert(!i->sync_prev);
2636 pa_assert(!i->sync_next);
2637 pa_assert(!i->thread_info.sync_next);
2638 pa_assert(!i->thread_info.sync_prev);
2640 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2642 pa_assert(!i->thread_info.attached);
2643 i->thread_info.attached = true;
2648 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2652 /* In the ideal case the new sink would start playing
2653 * the stream immediately. That requires the sink to
2654 * be able to rewind all of its latency, which usually
2655 * isn't possible, so there will probably be some gap
2656 * before the moved stream becomes audible. We then
2657 * have two possibilities: 1) start playing the stream
2658 * from where it is now, or 2) drop the unrewindable
2659 * latency of the sink from the stream. With option 1
2660 * we won't lose any audio but the stream will have a
2661 * pause. With option 2 we may lose some audio but the
2662 * stream time will be somewhat in sync with the wall
2663 * clock. Lennart seems to have chosen option 2 (one
2664 * of the reasons might have been that option 1 is
2665 * actually much harder to implement), so we drop the
2666 * latency of the new sink from the moved stream and
2667 * hope that the sink will undo most of that in the
2670 /* Get the latency of the sink */
2671 usec = pa_sink_get_latency_within_thread(s);
2672 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2675 pa_sink_input_drop(i, nbytes);
2677 pa_log_debug("Requesting rewind due to finished move");
2678 pa_sink_request_rewind(s, nbytes);
2681 /* Updating the requested sink latency has to be done
2682 * after the sink rewind request, not before, because
2683 * otherwise the sink may limit the rewind amount
2686 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2687 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2689 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2690 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2692 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2695 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2696 pa_sink *root_sink = pa_sink_get_master(s);
2698 if (PA_LIKELY(root_sink))
2699 set_shared_volume_within_thread(root_sink);
2704 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2706 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2708 pa_sink_volume_change_push(s);
2710 /* Fall through ... */
2712 case PA_SINK_MESSAGE_SET_VOLUME:
2714 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2715 s->thread_info.soft_volume = s->soft_volume;
2716 pa_sink_request_rewind(s, (size_t) -1);
2719 /* Fall through ... */
2721 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2722 sync_input_volumes_within_thread(s);
2725 case PA_SINK_MESSAGE_GET_VOLUME:
2727 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2729 pa_sink_volume_change_flush(s);
2730 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2733 /* In case sink implementor reset SW volume. */
2734 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2735 s->thread_info.soft_volume = s->soft_volume;
2736 pa_sink_request_rewind(s, (size_t) -1);
2741 case PA_SINK_MESSAGE_SET_MUTE:
2743 if (s->thread_info.soft_muted != s->muted) {
2744 s->thread_info.soft_muted = s->muted;
2745 pa_sink_request_rewind(s, (size_t) -1);
2748 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2753 case PA_SINK_MESSAGE_GET_MUTE:
2755 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2756 return s->get_mute(s, userdata);
2760 case PA_SINK_MESSAGE_SET_STATE: {
2762 bool suspend_change =
2763 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2764 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2766 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2768 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2769 s->thread_info.rewind_nbytes = 0;
2770 s->thread_info.rewind_requested = false;
2773 if (suspend_change) {
2777 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2778 if (i->suspend_within_thread)
2779 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2785 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2787 pa_usec_t *usec = userdata;
2788 *usec = pa_sink_get_requested_latency_within_thread(s);
2790 /* Yes, that's right, the IO thread will see -1 when no
2791 * explicit requested latency is configured, the main
2792 * thread will see max_latency */
2793 if (*usec == (pa_usec_t) -1)
2794 *usec = s->thread_info.max_latency;
2799 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2800 pa_usec_t *r = userdata;
2802 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2807 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2808 pa_usec_t *r = userdata;
2810 r[0] = s->thread_info.min_latency;
2811 r[1] = s->thread_info.max_latency;
2816 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2818 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2821 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2823 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2826 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2828 *((size_t*) userdata) = s->thread_info.max_rewind;
2831 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2833 *((size_t*) userdata) = s->thread_info.max_request;
2836 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2838 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2841 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2843 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2846 case PA_SINK_MESSAGE_SET_PORT:
2848 pa_assert(userdata);
2850 struct sink_message_set_port *msg_data = userdata;
2851 msg_data->ret = s->set_port(s, msg_data->port);
2855 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2856 /* This message is sent from IO-thread and handled in main thread. */
2857 pa_assert_ctl_context();
2859 /* Make sure we're not messing with main thread when no longer linked */
2860 if (!PA_SINK_IS_LINKED(s->state))
2863 pa_sink_get_volume(s, true);
2864 pa_sink_get_mute(s, true);
2867 case PA_SINK_MESSAGE_SET_LATENCY_OFFSET:
2868 s->thread_info.latency_offset = offset;
2871 case PA_SINK_MESSAGE_GET_LATENCY:
2872 case PA_SINK_MESSAGE_MAX:
2879 /* Called from main thread */
2880 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2885 pa_core_assert_ref(c);
2886 pa_assert_ctl_context();
2887 pa_assert(cause != 0);
2889 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2892 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2899 /* Called from IO thread */
2900 void pa_sink_detach_within_thread(pa_sink *s) {
2904 pa_sink_assert_ref(s);
2905 pa_sink_assert_io_context(s);
2906 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2908 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2912 if (s->monitor_source)
2913 pa_source_detach_within_thread(s->monitor_source);
2916 /* Called from IO thread */
2917 void pa_sink_attach_within_thread(pa_sink *s) {
2921 pa_sink_assert_ref(s);
2922 pa_sink_assert_io_context(s);
2923 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2925 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2929 if (s->monitor_source)
2930 pa_source_attach_within_thread(s->monitor_source);
2933 /* Called from IO thread */
2934 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2935 pa_sink_assert_ref(s);
2936 pa_sink_assert_io_context(s);
2937 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2939 if (nbytes == (size_t) -1)
2940 nbytes = s->thread_info.max_rewind;
2942 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2944 if (s->thread_info.rewind_requested &&
2945 nbytes <= s->thread_info.rewind_nbytes)
2948 s->thread_info.rewind_nbytes = nbytes;
2949 s->thread_info.rewind_requested = true;
2951 if (s->request_rewind)
2952 s->request_rewind(s);
2955 /* Called from IO thread */
2956 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
2957 pa_usec_t result = (pa_usec_t) -1;
2960 pa_usec_t monitor_latency;
2962 pa_sink_assert_ref(s);
2963 pa_sink_assert_io_context(s);
2965 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
2966 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2968 if (s->thread_info.requested_latency_valid)
2969 return s->thread_info.requested_latency;
2971 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2972 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
2973 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
2974 result = i->thread_info.requested_sink_latency;
2976 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
2978 if (monitor_latency != (pa_usec_t) -1 &&
2979 (result == (pa_usec_t) -1 || result > monitor_latency))
2980 result = monitor_latency;
2982 if (result != (pa_usec_t) -1)
2983 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2985 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2986 /* Only cache if properly initialized */
2987 s->thread_info.requested_latency = result;
2988 s->thread_info.requested_latency_valid = true;
2994 /* Called from main thread */
2995 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
2998 pa_sink_assert_ref(s);
2999 pa_assert_ctl_context();
3000 pa_assert(PA_SINK_IS_LINKED(s->state));
3002 if (s->state == PA_SINK_SUSPENDED)
3005 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3010 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3011 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3015 pa_sink_assert_ref(s);
3016 pa_sink_assert_io_context(s);
3018 if (max_rewind == s->thread_info.max_rewind)
3021 s->thread_info.max_rewind = max_rewind;
3023 if (PA_SINK_IS_LINKED(s->thread_info.state))
3024 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3025 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3027 if (s->monitor_source)
3028 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3031 /* Called from main thread */
3032 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3033 pa_sink_assert_ref(s);
3034 pa_assert_ctl_context();
3036 if (PA_SINK_IS_LINKED(s->state))
3037 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3039 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3042 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3043 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3046 pa_sink_assert_ref(s);
3047 pa_sink_assert_io_context(s);
3049 if (max_request == s->thread_info.max_request)
3052 s->thread_info.max_request = max_request;
3054 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3057 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3058 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3062 /* Called from main thread */
3063 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3064 pa_sink_assert_ref(s);
3065 pa_assert_ctl_context();
3067 if (PA_SINK_IS_LINKED(s->state))
3068 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3070 pa_sink_set_max_request_within_thread(s, max_request);
3073 /* Called from IO thread */
3074 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3078 pa_sink_assert_ref(s);
3079 pa_sink_assert_io_context(s);
3081 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3082 s->thread_info.requested_latency_valid = false;
3086 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3088 if (s->update_requested_latency)
3089 s->update_requested_latency(s);
3091 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3092 if (i->update_sink_requested_latency)
3093 i->update_sink_requested_latency(i);
3097 /* Called from main thread */
3098 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3099 pa_sink_assert_ref(s);
3100 pa_assert_ctl_context();
3102 /* min_latency == 0: no limit
3103 * min_latency anything else: specified limit
3105 * Similar for max_latency */
3107 if (min_latency < ABSOLUTE_MIN_LATENCY)
3108 min_latency = ABSOLUTE_MIN_LATENCY;
3110 if (max_latency <= 0 ||
3111 max_latency > ABSOLUTE_MAX_LATENCY)
3112 max_latency = ABSOLUTE_MAX_LATENCY;
3114 pa_assert(min_latency <= max_latency);
3116 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3117 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3118 max_latency == ABSOLUTE_MAX_LATENCY) ||
3119 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3121 if (PA_SINK_IS_LINKED(s->state)) {
3127 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3129 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3132 /* Called from main thread */
3133 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3134 pa_sink_assert_ref(s);
3135 pa_assert_ctl_context();
3136 pa_assert(min_latency);
3137 pa_assert(max_latency);
3139 if (PA_SINK_IS_LINKED(s->state)) {
3140 pa_usec_t r[2] = { 0, 0 };
3142 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3144 *min_latency = r[0];
3145 *max_latency = r[1];
3147 *min_latency = s->thread_info.min_latency;
3148 *max_latency = s->thread_info.max_latency;
3152 /* Called from IO thread */
3153 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3154 pa_sink_assert_ref(s);
3155 pa_sink_assert_io_context(s);
3157 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3158 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3159 pa_assert(min_latency <= max_latency);
3161 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3162 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3163 max_latency == ABSOLUTE_MAX_LATENCY) ||
3164 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3166 if (s->thread_info.min_latency == min_latency &&
3167 s->thread_info.max_latency == max_latency)
3170 s->thread_info.min_latency = min_latency;
3171 s->thread_info.max_latency = max_latency;
3173 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3177 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3178 if (i->update_sink_latency_range)
3179 i->update_sink_latency_range(i);
3182 pa_sink_invalidate_requested_latency(s, false);
3184 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3187 /* Called from main thread */
3188 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3189 pa_sink_assert_ref(s);
3190 pa_assert_ctl_context();
3192 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3193 pa_assert(latency == 0);
3197 if (latency < ABSOLUTE_MIN_LATENCY)
3198 latency = ABSOLUTE_MIN_LATENCY;
3200 if (latency > ABSOLUTE_MAX_LATENCY)
3201 latency = ABSOLUTE_MAX_LATENCY;
3203 if (PA_SINK_IS_LINKED(s->state))
3204 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3206 s->thread_info.fixed_latency = latency;
3208 pa_source_set_fixed_latency(s->monitor_source, latency);
3211 /* Called from main thread */
3212 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3215 pa_sink_assert_ref(s);
3216 pa_assert_ctl_context();
3218 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3221 if (PA_SINK_IS_LINKED(s->state))
3222 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3224 latency = s->thread_info.fixed_latency;
3229 /* Called from IO thread */
3230 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3231 pa_sink_assert_ref(s);
3232 pa_sink_assert_io_context(s);
3234 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3235 pa_assert(latency == 0);
3236 s->thread_info.fixed_latency = 0;
3238 if (s->monitor_source)
3239 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3244 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3245 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3247 if (s->thread_info.fixed_latency == latency)
3250 s->thread_info.fixed_latency = latency;
3252 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3256 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3257 if (i->update_sink_fixed_latency)
3258 i->update_sink_fixed_latency(i);
3261 pa_sink_invalidate_requested_latency(s, false);
3263 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3266 /* Called from main context */
3267 void pa_sink_set_latency_offset(pa_sink *s, int64_t offset) {
3268 pa_sink_assert_ref(s);
3270 s->latency_offset = offset;
3272 if (PA_SINK_IS_LINKED(s->state))
3273 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3275 s->thread_info.latency_offset = offset;
3278 /* Called from main context */
3279 size_t pa_sink_get_max_rewind(pa_sink *s) {
3281 pa_assert_ctl_context();
3282 pa_sink_assert_ref(s);
3284 if (!PA_SINK_IS_LINKED(s->state))
3285 return s->thread_info.max_rewind;
3287 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3292 /* Called from main context */
3293 size_t pa_sink_get_max_request(pa_sink *s) {
3295 pa_sink_assert_ref(s);
3296 pa_assert_ctl_context();
3298 if (!PA_SINK_IS_LINKED(s->state))
3299 return s->thread_info.max_request;
3301 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3306 /* Called from main context */
3307 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3308 pa_device_port *port;
3311 pa_sink_assert_ref(s);
3312 pa_assert_ctl_context();
3315 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3316 return -PA_ERR_NOTIMPLEMENTED;
3320 return -PA_ERR_NOENTITY;
3322 if (!(port = pa_hashmap_get(s->ports, name)))
3323 return -PA_ERR_NOENTITY;
3325 if (s->active_port == port) {
3326 s->save_port = s->save_port || save;
3330 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3331 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3332 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3336 ret = s->set_port(s, port);
3339 return -PA_ERR_NOENTITY;
3341 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3343 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3345 s->active_port = port;
3346 s->save_port = save;
3348 pa_sink_set_latency_offset(s, s->active_port->latency_offset);
3350 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3355 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3356 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3360 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3363 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3365 if (pa_streq(ff, "microphone"))
3366 t = "audio-input-microphone";
3367 else if (pa_streq(ff, "webcam"))
3369 else if (pa_streq(ff, "computer"))
3371 else if (pa_streq(ff, "handset"))
3373 else if (pa_streq(ff, "portable"))
3374 t = "multimedia-player";
3375 else if (pa_streq(ff, "tv"))
3376 t = "video-display";
3379 * The following icons are not part of the icon naming spec,
3380 * because Rodney Dawes sucks as the maintainer of that spec.
3382 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3384 else if (pa_streq(ff, "headset"))
3385 t = "audio-headset";
3386 else if (pa_streq(ff, "headphone"))
3387 t = "audio-headphones";
3388 else if (pa_streq(ff, "speaker"))
3389 t = "audio-speakers";
3390 else if (pa_streq(ff, "hands-free"))
3391 t = "audio-handsfree";
3395 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3396 if (pa_streq(c, "modem"))
3403 t = "audio-input-microphone";
3406 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3407 if (strstr(profile, "analog"))
3409 else if (strstr(profile, "iec958"))
3411 else if (strstr(profile, "hdmi"))
3415 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3417 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3422 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3423 const char *s, *d = NULL, *k;
3426 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3430 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3434 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3435 if (pa_streq(s, "internal"))
3436 d = _("Built-in Audio");
3439 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3440 if (pa_streq(s, "modem"))
3444 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3449 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3452 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3454 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3459 bool pa_device_init_intended_roles(pa_proplist *p) {
3463 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3466 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3467 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3468 || pa_streq(s, "headset")) {
3469 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3476 unsigned pa_device_init_priority(pa_proplist *p) {
3478 unsigned priority = 0;
3482 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3484 if (pa_streq(s, "sound"))
3486 else if (!pa_streq(s, "modem"))
3490 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3492 if (pa_streq(s, "internal"))
3494 else if (pa_streq(s, "speaker"))
3496 else if (pa_streq(s, "headphone"))
3500 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3502 if (pa_streq(s, "pci"))
3504 else if (pa_streq(s, "usb"))
3506 else if (pa_streq(s, "bluetooth"))
3510 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3512 if (pa_startswith(s, "analog-"))
3514 else if (pa_startswith(s, "iec958-"))
3521 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3523 /* Called from the IO thread. */
3524 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3525 pa_sink_volume_change *c;
3526 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3527 c = pa_xnew(pa_sink_volume_change, 1);
3529 PA_LLIST_INIT(pa_sink_volume_change, c);
3531 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3535 /* Called from the IO thread. */
3536 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3538 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3542 /* Called from the IO thread. */
3543 void pa_sink_volume_change_push(pa_sink *s) {
3544 pa_sink_volume_change *c = NULL;
3545 pa_sink_volume_change *nc = NULL;
3546 pa_sink_volume_change *pc = NULL;
3547 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3549 const char *direction = NULL;
3552 nc = pa_sink_volume_change_new(s);
3554 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3555 * Adding one more volume for HW would get us rid of this, but I am trying
3556 * to survive with the ones we already have. */
3557 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3559 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3560 pa_log_debug("Volume not changing");
3561 pa_sink_volume_change_free(nc);
3565 nc->at = pa_sink_get_latency_within_thread(s);
3566 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3568 if (s->thread_info.volume_changes_tail) {
3569 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3570 /* If volume is going up let's do it a bit late. If it is going
3571 * down let's do it a bit early. */
3572 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3573 if (nc->at + safety_margin > c->at) {
3574 nc->at += safety_margin;
3579 else if (nc->at - safety_margin > c->at) {
3580 nc->at -= safety_margin;
3588 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3589 nc->at += safety_margin;
3592 nc->at -= safety_margin;
3595 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3598 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3601 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3603 /* We can ignore volume events that came earlier but should happen later than this. */
3604 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3605 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3606 pa_sink_volume_change_free(c);
3609 s->thread_info.volume_changes_tail = nc;
3612 /* Called from the IO thread. */
3613 static void pa_sink_volume_change_flush(pa_sink *s) {
3614 pa_sink_volume_change *c = s->thread_info.volume_changes;
3616 s->thread_info.volume_changes = NULL;
3617 s->thread_info.volume_changes_tail = NULL;
3619 pa_sink_volume_change *next = c->next;
3620 pa_sink_volume_change_free(c);
3625 /* Called from the IO thread. */
3626 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3632 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3638 pa_assert(s->write_volume);
3640 now = pa_rtclock_now();
3642 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3643 pa_sink_volume_change *c = s->thread_info.volume_changes;
3644 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3645 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3646 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3648 s->thread_info.current_hw_volume = c->hw_volume;
3649 pa_sink_volume_change_free(c);
3655 if (s->thread_info.volume_changes) {
3657 *usec_to_next = s->thread_info.volume_changes->at - now;
3658 if (pa_log_ratelimit(PA_LOG_DEBUG))
3659 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3664 s->thread_info.volume_changes_tail = NULL;
3669 /* Called from the IO thread. */
3670 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3671 /* All the queued volume events later than current latency are shifted to happen earlier. */
3672 pa_sink_volume_change *c;
3673 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3674 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3675 pa_usec_t limit = pa_sink_get_latency_within_thread(s);
3677 pa_log_debug("latency = %lld", (long long) limit);
3678 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3680 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3681 pa_usec_t modified_limit = limit;
3682 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3683 modified_limit -= s->thread_info.volume_change_safety_margin;
3685 modified_limit += s->thread_info.volume_change_safety_margin;
3686 if (c->at > modified_limit) {
3688 if (c->at < modified_limit)
3689 c->at = modified_limit;
3691 prev_vol = pa_cvolume_avg(&c->hw_volume);
3693 pa_sink_volume_change_apply(s, NULL);
3696 /* Called from the main thread */
3697 /* Gets the list of formats supported by the sink. The members and idxset must
3698 * be freed by the caller. */
3699 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3704 if (s->get_formats) {
3705 /* Sink supports format query, all is good */
3706 ret = s->get_formats(s);
3708 /* Sink doesn't support format query, so assume it does PCM */
3709 pa_format_info *f = pa_format_info_new();
3710 f->encoding = PA_ENCODING_PCM;
3712 ret = pa_idxset_new(NULL, NULL);
3713 pa_idxset_put(ret, f, NULL);
3719 /* Called from the main thread */
3720 /* Allows an external source to set what formats a sink supports if the sink
3721 * permits this. The function makes a copy of the formats on success. */
3722 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3727 /* Sink supports setting formats -- let's give it a shot */
3728 return s->set_formats(s, formats);
3730 /* Sink doesn't support setting this -- bail out */
3734 /* Called from the main thread */
3735 /* Checks if the sink can accept this format */
3736 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3737 pa_idxset *formats = NULL;
3743 formats = pa_sink_get_formats(s);
3746 pa_format_info *finfo_device;
3749 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3750 if (pa_format_info_is_compatible(finfo_device, f)) {
3756 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3762 /* Called from the main thread */
3763 /* Calculates the intersection between formats supported by the sink and
3764 * in_formats, and returns these, in the order of the sink's formats. */
3765 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3766 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3767 pa_format_info *f_sink, *f_in;
3772 if (!in_formats || pa_idxset_isempty(in_formats))
3775 sink_formats = pa_sink_get_formats(s);
3777 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3778 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3779 if (pa_format_info_is_compatible(f_sink, f_in))
3780 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3786 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3791 /* Called from the main thread. */
3792 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3793 pa_cvolume old_volume;
3794 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3795 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3800 old_volume = s->reference_volume;
3802 if (pa_cvolume_equal(volume, &old_volume))
3805 s->reference_volume = *volume;
3806 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3807 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3808 s->flags & PA_SINK_DECIBEL_VOLUME),
3809 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3810 s->flags & PA_SINK_DECIBEL_VOLUME));
3812 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3813 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);