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) {
153 s->set_state_in_main_thread = NULL;
154 s->set_state_in_io_thread = NULL;
155 s->get_volume = NULL;
156 s->set_volume = NULL;
157 s->write_volume = NULL;
160 s->request_rewind = NULL;
161 s->update_requested_latency = NULL;
163 s->get_formats = NULL;
164 s->set_formats = NULL;
165 s->reconfigure = NULL;
168 /* Called from main context */
169 pa_sink* pa_sink_new(
171 pa_sink_new_data *data,
172 pa_sink_flags_t flags) {
176 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
177 pa_source_new_data source_data;
183 pa_assert(data->name);
184 pa_assert_ctl_context();
186 s = pa_msgobject_new(pa_sink);
188 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
189 pa_log_debug("Failed to register name %s.", data->name);
194 pa_sink_new_data_set_name(data, name);
196 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
198 pa_namereg_unregister(core, name);
202 /* FIXME, need to free s here on failure */
204 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
205 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
207 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
209 if (!data->channel_map_is_set)
210 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
212 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
213 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
215 /* FIXME: There should probably be a general function for checking whether
216 * the sink volume is allowed to be set, like there is for sink inputs. */
217 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
219 if (!data->volume_is_set) {
220 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
221 data->save_volume = false;
224 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
225 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
227 if (!data->muted_is_set)
231 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
233 pa_device_init_description(data->proplist, data->card);
234 pa_device_init_icon(data->proplist, true);
235 pa_device_init_intended_roles(data->proplist);
237 if (!data->active_port) {
238 pa_device_port *p = pa_device_port_find_best(data->ports);
240 pa_sink_new_data_set_port(data, p->name);
243 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
245 pa_namereg_unregister(core, name);
249 s->parent.parent.free = sink_free;
250 s->parent.process_msg = pa_sink_process_msg;
253 s->state = PA_SINK_INIT;
256 s->suspend_cause = data->suspend_cause;
257 pa_sink_set_mixer_dirty(s, false);
258 s->name = pa_xstrdup(name);
259 s->proplist = pa_proplist_copy(data->proplist);
260 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
261 s->module = data->module;
262 s->card = data->card;
264 s->priority = pa_device_init_priority(s->proplist);
266 s->sample_spec = data->sample_spec;
267 s->channel_map = data->channel_map;
268 s->default_sample_rate = s->sample_spec.rate;
270 if (data->alternate_sample_rate_is_set)
271 s->alternate_sample_rate = data->alternate_sample_rate;
273 s->alternate_sample_rate = s->core->alternate_sample_rate;
275 if (s->sample_spec.rate == s->alternate_sample_rate) {
276 pa_log_warn("Default and alternate sample rates are the same.");
277 s->alternate_sample_rate = 0;
280 s->inputs = pa_idxset_new(NULL, NULL);
282 s->input_to_master = NULL;
284 s->reference_volume = s->real_volume = data->volume;
285 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
286 s->base_volume = PA_VOLUME_NORM;
287 s->n_volume_steps = PA_VOLUME_NORM+1;
288 s->muted = data->muted;
289 s->refresh_volume = s->refresh_muted = false;
296 /* As a minor optimization we just steal the list instead of
298 s->ports = data->ports;
301 s->active_port = NULL;
302 s->save_port = false;
304 if (data->active_port)
305 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
306 s->save_port = data->save_port;
308 /* Hopefully the active port has already been assigned in the previous call
309 to pa_device_port_find_best, but better safe than sorry */
311 s->active_port = pa_device_port_find_best(s->ports);
314 s->port_latency_offset = s->active_port->latency_offset;
316 s->port_latency_offset = 0;
318 s->save_volume = data->save_volume;
319 s->save_muted = data->save_muted;
321 pa_silence_memchunk_get(
322 &core->silence_cache,
328 s->thread_info.rtpoll = NULL;
329 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
330 (pa_free_cb_t) pa_sink_input_unref);
331 s->thread_info.soft_volume = s->soft_volume;
332 s->thread_info.soft_muted = s->muted;
333 s->thread_info.state = s->state;
334 s->thread_info.rewind_nbytes = 0;
335 s->thread_info.rewind_requested = false;
336 s->thread_info.max_rewind = 0;
337 s->thread_info.max_request = 0;
338 s->thread_info.requested_latency_valid = false;
339 s->thread_info.requested_latency = 0;
340 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
341 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
342 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
344 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
345 s->thread_info.volume_changes_tail = NULL;
346 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
347 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
348 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
349 s->thread_info.port_latency_offset = s->port_latency_offset;
351 /* FIXME: This should probably be moved to pa_sink_put() */
352 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
355 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
357 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
358 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
361 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
362 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
366 pa_source_new_data_init(&source_data);
367 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
368 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
369 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
370 source_data.name = pa_sprintf_malloc("%s.monitor", name);
371 source_data.driver = data->driver;
372 source_data.module = data->module;
373 source_data.card = data->card;
375 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
376 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
377 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
379 s->monitor_source = pa_source_new(core, &source_data,
380 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
381 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
383 pa_source_new_data_done(&source_data);
385 if (!s->monitor_source) {
391 s->monitor_source->monitor_of = s;
393 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
394 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
395 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
400 /* Called from main context */
401 static int sink_set_state(pa_sink *s, pa_sink_state_t state, pa_suspend_cause_t suspend_cause) {
404 bool suspend_cause_changed;
409 pa_assert_ctl_context();
411 state_changed = state != s->state;
412 suspend_cause_changed = suspend_cause != s->suspend_cause;
414 if (!state_changed && !suspend_cause_changed)
417 suspending = PA_SINK_IS_OPENED(s->state) && state == PA_SINK_SUSPENDED;
418 resuming = s->state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state);
420 /* If we are resuming, suspend_cause must be 0. */
421 pa_assert(!resuming || !suspend_cause);
423 /* Here's something to think about: what to do with the suspend cause if
424 * resuming the sink fails? The old suspend cause will be incorrect, so we
425 * can't use that. On the other hand, if we set no suspend cause (as is the
426 * case currently), then it looks strange to have a sink suspended without
427 * any cause. It might be a good idea to add a new "resume failed" suspend
428 * cause, or it might just add unnecessary complexity, given that the
429 * current approach of not setting any suspend cause works well enough. */
431 if (s->set_state_in_main_thread) {
432 ret = s->set_state_in_main_thread(s, state, suspend_cause);
433 /* set_state_in_main_thread() is allowed to fail only when resuming. */
434 pa_assert(ret >= 0 || resuming);
437 if (ret >= 0 && s->asyncmsgq && state_changed)
438 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
439 /* SET_STATE is allowed to fail only when resuming. */
442 if (s->set_state_in_main_thread)
443 s->set_state_in_main_thread(s, PA_SINK_SUSPENDED, 0);
446 if (suspend_cause_changed) {
447 char old_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
448 char new_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
450 pa_log_debug("%s: suspend_cause: %s -> %s", s->name, pa_suspend_cause_to_string(s->suspend_cause, old_cause_buf),
451 pa_suspend_cause_to_string(suspend_cause, new_cause_buf));
452 s->suspend_cause = suspend_cause;
459 pa_log_debug("%s: state: %s -> %s", s->name, pa_sink_state_to_string(s->state), pa_sink_state_to_string(state));
462 /* If we enter UNLINKED state, then we don't send change notifications.
463 * pa_sink_unlink() will send unlink notifications instead. */
464 if (state != PA_SINK_UNLINKED) {
465 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
466 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
470 if (suspending || resuming) {
474 /* We're suspending or resuming, tell everyone about it */
476 PA_IDXSET_FOREACH(i, s->inputs, idx)
477 if (s->state == PA_SINK_SUSPENDED &&
478 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
479 pa_sink_input_kill(i);
481 i->suspend(i, state == PA_SINK_SUSPENDED);
485 if ((suspending || resuming || suspend_cause_changed) && s->monitor_source && state != PA_SINK_UNLINKED)
486 pa_source_sync_suspend(s->monitor_source);
491 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
497 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
498 pa_sink_flags_t flags;
501 pa_assert(!s->write_volume || cb);
505 /* Save the current flags so we can tell if they've changed */
509 /* The sink implementor is responsible for setting decibel volume support */
510 s->flags |= PA_SINK_HW_VOLUME_CTRL;
512 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
513 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
514 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
517 /* If the flags have changed after init, let any clients know via a change event */
518 if (s->state != PA_SINK_INIT && flags != s->flags)
519 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
522 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
523 pa_sink_flags_t flags;
526 pa_assert(!cb || s->set_volume);
528 s->write_volume = cb;
530 /* Save the current flags so we can tell if they've changed */
534 s->flags |= PA_SINK_DEFERRED_VOLUME;
536 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
538 /* If the flags have changed after init, let any clients know via a change event */
539 if (s->state != PA_SINK_INIT && flags != s->flags)
540 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
543 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
549 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
550 pa_sink_flags_t flags;
556 /* Save the current flags so we can tell if they've changed */
560 s->flags |= PA_SINK_HW_MUTE_CTRL;
562 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
564 /* If the flags have changed after init, let any clients know via a change event */
565 if (s->state != PA_SINK_INIT && flags != s->flags)
566 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
569 static void enable_flat_volume(pa_sink *s, bool enable) {
570 pa_sink_flags_t flags;
574 /* Always follow the overall user preference here */
575 enable = enable && s->core->flat_volumes;
577 /* Save the current flags so we can tell if they've changed */
581 s->flags |= PA_SINK_FLAT_VOLUME;
583 s->flags &= ~PA_SINK_FLAT_VOLUME;
585 /* If the flags have changed after init, let any clients know via a change event */
586 if (s->state != PA_SINK_INIT && flags != s->flags)
587 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
590 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
591 pa_sink_flags_t flags;
595 /* Save the current flags so we can tell if they've changed */
599 s->flags |= PA_SINK_DECIBEL_VOLUME;
600 enable_flat_volume(s, true);
602 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
603 enable_flat_volume(s, false);
606 /* If the flags have changed after init, let any clients know via a change event */
607 if (s->state != PA_SINK_INIT && flags != s->flags)
608 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
611 /* Called from main context */
612 void pa_sink_put(pa_sink* s) {
613 pa_sink_assert_ref(s);
614 pa_assert_ctl_context();
616 pa_assert(s->state == PA_SINK_INIT);
617 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
619 /* The following fields must be initialized properly when calling _put() */
620 pa_assert(s->asyncmsgq);
621 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
623 /* Generally, flags should be initialized via pa_sink_new(). As a
624 * special exception we allow some volume related flags to be set
625 * between _new() and _put() by the callback setter functions above.
627 * Thus we implement a couple safeguards here which ensure the above
628 * setters were used (or at least the implementor made manual changes
629 * in a compatible way).
631 * Note: All of these flags set here can change over the life time
633 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
634 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
635 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
637 /* XXX: Currently decibel volume is disabled for all sinks that use volume
638 * sharing. When the master sink supports decibel volume, it would be good
639 * to have the flag also in the filter sink, but currently we don't do that
640 * so that the flags of the filter sink never change when it's moved from
641 * a master sink to another. One solution for this problem would be to
642 * remove user-visible volume altogether from filter sinks when volume
643 * sharing is used, but the current approach was easier to implement... */
644 /* We always support decibel volumes in software, otherwise we leave it to
645 * the sink implementor to set this flag as needed.
647 * Note: This flag can also change over the life time of the sink. */
648 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
649 pa_sink_enable_decibel_volume(s, true);
650 s->soft_volume = s->reference_volume;
653 /* If the sink implementor support DB volumes by itself, we should always
654 * try and enable flat volumes too */
655 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
656 enable_flat_volume(s, true);
658 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
659 pa_sink *root_sink = pa_sink_get_master(s);
661 pa_assert(root_sink);
663 s->reference_volume = root_sink->reference_volume;
664 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
666 s->real_volume = root_sink->real_volume;
667 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
669 /* We assume that if the sink implementor changed the default
670 * volume he did so in real_volume, because that is the usual
671 * place where he is supposed to place his changes. */
672 s->reference_volume = s->real_volume;
674 s->thread_info.soft_volume = s->soft_volume;
675 s->thread_info.soft_muted = s->muted;
676 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
678 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
679 || (s->base_volume == PA_VOLUME_NORM
680 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
681 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
682 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
683 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
684 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
686 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
687 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
688 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
690 if (s->suspend_cause)
691 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED, s->suspend_cause) == 0);
693 pa_assert_se(sink_set_state(s, PA_SINK_IDLE, 0) == 0);
695 pa_source_put(s->monitor_source);
697 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
698 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
700 /* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
701 * because module-switch-on-connect needs to know the old default sink */
702 pa_core_update_default_sink(s->core);
705 /* Called from main context */
706 void pa_sink_unlink(pa_sink* s) {
708 pa_sink_input *i, PA_UNUSED *j = NULL;
710 pa_sink_assert_ref(s);
711 pa_assert_ctl_context();
713 /* Please note that pa_sink_unlink() does more than simply
714 * reversing pa_sink_put(). It also undoes the registrations
715 * already done in pa_sink_new()! */
717 if (s->unlink_requested)
720 s->unlink_requested = true;
722 linked = PA_SINK_IS_LINKED(s->state);
725 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
727 if (s->state != PA_SINK_UNLINKED)
728 pa_namereg_unregister(s->core, s->name);
729 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
731 pa_core_update_default_sink(s->core);
734 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
736 while ((i = pa_idxset_first(s->inputs, NULL))) {
738 pa_sink_input_kill(i);
743 sink_set_state(s, PA_SINK_UNLINKED, 0);
745 s->state = PA_SINK_UNLINKED;
749 if (s->monitor_source)
750 pa_source_unlink(s->monitor_source);
753 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
754 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
758 /* Called from main context */
759 static void sink_free(pa_object *o) {
760 pa_sink *s = PA_SINK(o);
763 pa_assert_ctl_context();
764 pa_assert(pa_sink_refcnt(s) == 0);
765 pa_assert(!PA_SINK_IS_LINKED(s->state));
767 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
769 pa_sink_volume_change_flush(s);
771 if (s->monitor_source) {
772 pa_source_unref(s->monitor_source);
773 s->monitor_source = NULL;
776 pa_idxset_free(s->inputs, NULL);
777 pa_hashmap_free(s->thread_info.inputs);
779 if (s->silence.memblock)
780 pa_memblock_unref(s->silence.memblock);
786 pa_proplist_free(s->proplist);
789 pa_hashmap_free(s->ports);
794 /* Called from main context, and not while the IO thread is active, please */
795 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
796 pa_sink_assert_ref(s);
797 pa_assert_ctl_context();
801 if (s->monitor_source)
802 pa_source_set_asyncmsgq(s->monitor_source, q);
805 /* Called from main context, and not while the IO thread is active, please */
806 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
807 pa_sink_flags_t old_flags;
808 pa_sink_input *input;
811 pa_sink_assert_ref(s);
812 pa_assert_ctl_context();
814 /* For now, allow only a minimal set of flags to be changed. */
815 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
817 old_flags = s->flags;
818 s->flags = (s->flags & ~mask) | (value & mask);
820 if (s->flags == old_flags)
823 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
824 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
826 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
827 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
828 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
830 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
831 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
833 if (s->monitor_source)
834 pa_source_update_flags(s->monitor_source,
835 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
836 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
837 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
838 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
840 PA_IDXSET_FOREACH(input, s->inputs, idx) {
841 if (input->origin_sink)
842 pa_sink_update_flags(input->origin_sink, mask, value);
846 /* Called from IO context, or before _put() from main context */
847 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
848 pa_sink_assert_ref(s);
849 pa_sink_assert_io_context(s);
851 s->thread_info.rtpoll = p;
853 if (s->monitor_source)
854 pa_source_set_rtpoll(s->monitor_source, p);
857 /* Called from main context */
858 int pa_sink_update_status(pa_sink*s) {
859 pa_sink_assert_ref(s);
860 pa_assert_ctl_context();
861 pa_assert(PA_SINK_IS_LINKED(s->state));
863 if (s->state == PA_SINK_SUSPENDED)
866 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
869 /* Called from any context - must be threadsafe */
870 void pa_sink_set_mixer_dirty(pa_sink *s, bool is_dirty) {
871 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
874 /* Called from main context */
875 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
876 pa_suspend_cause_t merged_cause;
878 pa_sink_assert_ref(s);
879 pa_assert_ctl_context();
880 pa_assert(PA_SINK_IS_LINKED(s->state));
881 pa_assert(cause != 0);
884 merged_cause = s->suspend_cause | cause;
886 merged_cause = s->suspend_cause & ~cause;
888 if (!(merged_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
889 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
890 it'll be handled just fine. */
891 pa_sink_set_mixer_dirty(s, false);
892 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
893 if (s->active_port && s->set_port) {
894 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
895 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
896 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
899 s->set_port(s, s->active_port);
910 return sink_set_state(s, PA_SINK_SUSPENDED, merged_cause);
912 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
915 /* Called from main context */
916 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
917 pa_sink_input *i, *n;
920 pa_sink_assert_ref(s);
921 pa_assert_ctl_context();
922 pa_assert(PA_SINK_IS_LINKED(s->state));
927 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
928 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
930 pa_sink_input_ref(i);
932 if (pa_sink_input_start_move(i) >= 0)
935 pa_sink_input_unref(i);
941 /* Called from main context */
942 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
945 pa_sink_assert_ref(s);
946 pa_assert_ctl_context();
947 pa_assert(PA_SINK_IS_LINKED(s->state));
950 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
951 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
952 if (pa_sink_input_finish_move(i, s, save) < 0)
953 pa_sink_input_fail_move(i);
956 pa_sink_input_unref(i);
959 pa_queue_free(q, NULL);
962 /* Called from main context */
963 void pa_sink_move_all_fail(pa_queue *q) {
966 pa_assert_ctl_context();
969 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
970 pa_sink_input_fail_move(i);
971 pa_sink_input_unref(i);
974 pa_queue_free(q, NULL);
977 /* Called from IO thread context */
978 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
983 pa_sink_assert_ref(s);
984 pa_sink_assert_io_context(s);
986 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
987 size_t uf = i->thread_info.underrun_for_sink;
989 /* Propagate down the filter tree */
990 if (i->origin_sink) {
991 size_t filter_result, left_to_play_origin;
993 /* The recursive call works in the origin sink domain ... */
994 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
996 /* .. and returns the time to sleep before waking up. We need the
997 * underrun duration for comparisons, so we undo the subtraction on
998 * the return value... */
999 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
1001 /* ... and convert it back to the master sink domain */
1002 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
1004 /* Remember the longest underrun so far */
1005 if (filter_result > result)
1006 result = filter_result;
1010 /* No underrun here, move on */
1012 } else if (uf >= left_to_play) {
1013 /* The sink has possibly consumed all the data the sink input provided */
1014 pa_sink_input_process_underrun(i);
1015 } else if (uf > result) {
1016 /* Remember the longest underrun so far */
1022 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
1023 (long) result, (long) left_to_play - result);
1024 return left_to_play - result;
1027 /* Called from IO thread context */
1028 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1032 pa_sink_assert_ref(s);
1033 pa_sink_assert_io_context(s);
1034 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1036 /* If nobody requested this and this is actually no real rewind
1037 * then we can short cut this. Please note that this means that
1038 * not all rewind requests triggered upstream will always be
1039 * translated in actual requests! */
1040 if (!s->thread_info.rewind_requested && nbytes <= 0)
1043 s->thread_info.rewind_nbytes = 0;
1044 s->thread_info.rewind_requested = false;
1047 pa_log_debug("Processing rewind...");
1048 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1049 pa_sink_volume_change_rewind(s, nbytes);
1052 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1053 pa_sink_input_assert_ref(i);
1054 pa_sink_input_process_rewind(i, nbytes);
1058 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1059 pa_source_process_rewind(s->monitor_source, nbytes);
1063 /* Called from IO thread context */
1064 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1068 size_t mixlength = *length;
1070 pa_sink_assert_ref(s);
1071 pa_sink_assert_io_context(s);
1074 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1075 pa_sink_input_assert_ref(i);
1077 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1079 if (mixlength == 0 || info->chunk.length < mixlength)
1080 mixlength = info->chunk.length;
1082 if (pa_memblock_is_silence(info->chunk.memblock)) {
1083 pa_memblock_unref(info->chunk.memblock);
1087 info->userdata = pa_sink_input_ref(i);
1089 pa_assert(info->chunk.memblock);
1090 pa_assert(info->chunk.length > 0);
1098 *length = mixlength;
1103 /* Called from IO thread context */
1104 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1108 unsigned n_unreffed = 0;
1110 pa_sink_assert_ref(s);
1111 pa_sink_assert_io_context(s);
1113 pa_assert(result->memblock);
1114 pa_assert(result->length > 0);
1116 /* We optimize for the case where the order of the inputs has not changed */
1118 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1120 pa_mix_info* m = NULL;
1122 pa_sink_input_assert_ref(i);
1124 /* Let's try to find the matching entry info the pa_mix_info array */
1125 for (j = 0; j < n; j ++) {
1127 if (info[p].userdata == i) {
1137 /* Drop read data */
1138 pa_sink_input_drop(i, result->length);
1140 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1142 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1143 void *ostate = NULL;
1144 pa_source_output *o;
1147 if (m && m->chunk.memblock) {
1149 pa_memblock_ref(c.memblock);
1150 pa_assert(result->length <= c.length);
1151 c.length = result->length;
1153 pa_memchunk_make_writable(&c, 0);
1154 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1157 pa_memblock_ref(c.memblock);
1158 pa_assert(result->length <= c.length);
1159 c.length = result->length;
1162 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1163 pa_source_output_assert_ref(o);
1164 pa_assert(o->direct_on_input == i);
1165 pa_source_post_direct(s->monitor_source, o, &c);
1168 pa_memblock_unref(c.memblock);
1173 if (m->chunk.memblock) {
1174 pa_memblock_unref(m->chunk.memblock);
1175 pa_memchunk_reset(&m->chunk);
1178 pa_sink_input_unref(m->userdata);
1185 /* Now drop references to entries that are included in the
1186 * pa_mix_info array but don't exist anymore */
1188 if (n_unreffed < n) {
1189 for (; n > 0; info++, n--) {
1191 pa_sink_input_unref(info->userdata);
1192 if (info->chunk.memblock)
1193 pa_memblock_unref(info->chunk.memblock);
1197 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1198 pa_source_post(s->monitor_source, result);
1201 /* Called from IO thread context */
1202 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1203 pa_mix_info info[MAX_MIX_CHANNELS];
1205 size_t block_size_max;
1207 pa_sink_assert_ref(s);
1208 pa_sink_assert_io_context(s);
1209 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1210 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1213 pa_assert(!s->thread_info.rewind_requested);
1214 pa_assert(s->thread_info.rewind_nbytes == 0);
1216 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1217 result->memblock = pa_memblock_ref(s->silence.memblock);
1218 result->index = s->silence.index;
1219 result->length = PA_MIN(s->silence.length, length);
1226 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1228 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1229 if (length > block_size_max)
1230 length = pa_frame_align(block_size_max, &s->sample_spec);
1232 pa_assert(length > 0);
1234 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1238 *result = s->silence;
1239 pa_memblock_ref(result->memblock);
1241 if (result->length > length)
1242 result->length = length;
1244 } else if (n == 1) {
1247 *result = info[0].chunk;
1248 pa_memblock_ref(result->memblock);
1250 if (result->length > length)
1251 result->length = length;
1253 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1255 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1256 pa_memblock_unref(result->memblock);
1257 pa_silence_memchunk_get(&s->core->silence_cache,
1262 } else if (!pa_cvolume_is_norm(&volume)) {
1263 pa_memchunk_make_writable(result, 0);
1264 pa_volume_memchunk(result, &s->sample_spec, &volume);
1268 result->memblock = pa_memblock_new(s->core->mempool, length);
1270 ptr = pa_memblock_acquire(result->memblock);
1271 result->length = pa_mix(info, n,
1274 &s->thread_info.soft_volume,
1275 s->thread_info.soft_muted);
1276 pa_memblock_release(result->memblock);
1281 inputs_drop(s, info, n, result);
1286 /* Called from IO thread context */
1287 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1288 pa_mix_info info[MAX_MIX_CHANNELS];
1290 size_t length, block_size_max;
1292 pa_sink_assert_ref(s);
1293 pa_sink_assert_io_context(s);
1294 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1296 pa_assert(target->memblock);
1297 pa_assert(target->length > 0);
1298 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1300 pa_assert(!s->thread_info.rewind_requested);
1301 pa_assert(s->thread_info.rewind_nbytes == 0);
1303 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1304 pa_silence_memchunk(target, &s->sample_spec);
1310 length = target->length;
1311 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1312 if (length > block_size_max)
1313 length = pa_frame_align(block_size_max, &s->sample_spec);
1315 pa_assert(length > 0);
1317 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1320 if (target->length > length)
1321 target->length = length;
1323 pa_silence_memchunk(target, &s->sample_spec);
1324 } else if (n == 1) {
1327 if (target->length > length)
1328 target->length = length;
1330 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1332 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1333 pa_silence_memchunk(target, &s->sample_spec);
1337 vchunk = info[0].chunk;
1338 pa_memblock_ref(vchunk.memblock);
1340 if (vchunk.length > length)
1341 vchunk.length = length;
1343 if (!pa_cvolume_is_norm(&volume)) {
1344 pa_memchunk_make_writable(&vchunk, 0);
1345 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1348 pa_memchunk_memcpy(target, &vchunk);
1349 pa_memblock_unref(vchunk.memblock);
1355 ptr = pa_memblock_acquire(target->memblock);
1357 target->length = pa_mix(info, n,
1358 (uint8_t*) ptr + target->index, length,
1360 &s->thread_info.soft_volume,
1361 s->thread_info.soft_muted);
1363 pa_memblock_release(target->memblock);
1366 inputs_drop(s, info, n, target);
1371 /* Called from IO thread context */
1372 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1376 pa_sink_assert_ref(s);
1377 pa_sink_assert_io_context(s);
1378 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1380 pa_assert(target->memblock);
1381 pa_assert(target->length > 0);
1382 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1384 pa_assert(!s->thread_info.rewind_requested);
1385 pa_assert(s->thread_info.rewind_nbytes == 0);
1387 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1388 pa_silence_memchunk(target, &s->sample_spec);
1401 pa_sink_render_into(s, &chunk);
1410 /* Called from IO thread context */
1411 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1412 pa_sink_assert_ref(s);
1413 pa_sink_assert_io_context(s);
1414 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1415 pa_assert(length > 0);
1416 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1419 pa_assert(!s->thread_info.rewind_requested);
1420 pa_assert(s->thread_info.rewind_nbytes == 0);
1424 pa_sink_render(s, length, result);
1426 if (result->length < length) {
1429 pa_memchunk_make_writable(result, length);
1431 chunk.memblock = result->memblock;
1432 chunk.index = result->index + result->length;
1433 chunk.length = length - result->length;
1435 pa_sink_render_into_full(s, &chunk);
1437 result->length = length;
1443 /* Called from main thread */
1444 int pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1446 pa_sample_spec desired_spec;
1447 uint32_t default_rate = s->default_sample_rate;
1448 uint32_t alternate_rate = s->alternate_sample_rate;
1451 bool default_rate_is_usable = false;
1452 bool alternate_rate_is_usable = false;
1453 bool avoid_resampling = s->core->avoid_resampling;
1455 /* We currently only try to reconfigure the sample rate */
1457 if (pa_sample_spec_equal(spec, &s->sample_spec))
1460 if (!s->reconfigure)
1463 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1464 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1468 if (PA_SINK_IS_RUNNING(s->state)) {
1469 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1470 s->sample_spec.rate);
1474 if (s->monitor_source) {
1475 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1476 pa_log_info("Cannot update rate, monitor source is RUNNING");
1481 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1484 desired_spec = s->sample_spec;
1487 /* We have to try to use the sink input rate */
1488 desired_spec.rate = spec->rate;
1490 } else if (avoid_resampling && (spec->rate >= default_rate || spec->rate >= alternate_rate)) {
1491 /* We just try to set the sink input's sample rate if it's not too low */
1492 desired_spec.rate = spec->rate;
1494 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1495 /* We can directly try to use this rate */
1496 desired_spec.rate = spec->rate;
1499 /* See if we can pick a rate that results in less resampling effort */
1500 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1501 default_rate_is_usable = true;
1502 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1503 default_rate_is_usable = true;
1504 if (alternate_rate && alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1505 alternate_rate_is_usable = true;
1506 if (alternate_rate && alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1507 alternate_rate_is_usable = true;
1509 if (alternate_rate_is_usable && !default_rate_is_usable)
1510 desired_spec.rate = alternate_rate;
1512 desired_spec.rate = default_rate;
1515 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1518 if (!passthrough && pa_sink_used_by(s) > 0)
1521 pa_log_debug("Suspending sink %s due to changing format.", s->name);
1522 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1524 if (s->reconfigure(s, &desired_spec, passthrough) >= 0) {
1525 /* update monitor source as well */
1526 if (s->monitor_source && !passthrough)
1527 pa_source_reconfigure(s->monitor_source, &desired_spec, false);
1528 pa_log_info("Changed format successfully");
1530 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1531 if (i->state == PA_SINK_INPUT_CORKED)
1532 pa_sink_input_update_rate(i);
1538 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1543 /* Called from main thread */
1544 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1547 pa_sink_assert_ref(s);
1548 pa_assert_ctl_context();
1549 pa_assert(PA_SINK_IS_LINKED(s->state));
1551 /* The returned value is supposed to be in the time domain of the sound card! */
1553 if (s->state == PA_SINK_SUSPENDED)
1556 if (!(s->flags & PA_SINK_LATENCY))
1559 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1561 /* the return value is unsigned, so check that the offset can be added to usec without
1563 if (-s->port_latency_offset <= usec)
1564 usec += s->port_latency_offset;
1568 return (pa_usec_t)usec;
1571 /* Called from IO thread */
1572 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1576 pa_sink_assert_ref(s);
1577 pa_sink_assert_io_context(s);
1578 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1580 /* The returned value is supposed to be in the time domain of the sound card! */
1582 if (s->thread_info.state == PA_SINK_SUSPENDED)
1585 if (!(s->flags & PA_SINK_LATENCY))
1588 o = PA_MSGOBJECT(s);
1590 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1592 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1594 /* If allow_negative is false, the call should only return positive values, */
1595 usec += s->thread_info.port_latency_offset;
1596 if (!allow_negative && usec < 0)
1602 /* Called from the main thread (and also from the IO thread while the main
1603 * thread is waiting).
1605 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1606 * set. Instead, flat volume mode is detected by checking whether the root sink
1607 * has the flag set. */
1608 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1609 pa_sink_assert_ref(s);
1611 s = pa_sink_get_master(s);
1614 return (s->flags & PA_SINK_FLAT_VOLUME);
1619 /* Called from the main thread (and also from the IO thread while the main
1620 * thread is waiting). */
1621 pa_sink *pa_sink_get_master(pa_sink *s) {
1622 pa_sink_assert_ref(s);
1624 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1625 if (PA_UNLIKELY(!s->input_to_master))
1628 s = s->input_to_master->sink;
1634 /* Called from main context */
1635 bool pa_sink_is_filter(pa_sink *s) {
1636 pa_sink_assert_ref(s);
1638 return (s->input_to_master != NULL);
1641 /* Called from main context */
1642 bool pa_sink_is_passthrough(pa_sink *s) {
1643 pa_sink_input *alt_i;
1646 pa_sink_assert_ref(s);
1648 /* one and only one PASSTHROUGH input can possibly be connected */
1649 if (pa_idxset_size(s->inputs) == 1) {
1650 alt_i = pa_idxset_first(s->inputs, &idx);
1652 if (pa_sink_input_is_passthrough(alt_i))
1659 /* Called from main context */
1660 void pa_sink_enter_passthrough(pa_sink *s) {
1663 /* The sink implementation is reconfigured for passthrough in
1664 * pa_sink_reconfigure(). This function sets the PA core objects to
1665 * passthrough mode. */
1667 /* disable the monitor in passthrough mode */
1668 if (s->monitor_source) {
1669 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1670 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1673 /* set the volume to NORM */
1674 s->saved_volume = *pa_sink_get_volume(s, true);
1675 s->saved_save_volume = s->save_volume;
1677 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1678 pa_sink_set_volume(s, &volume, true, false);
1680 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1683 /* Called from main context */
1684 void pa_sink_leave_passthrough(pa_sink *s) {
1685 /* Unsuspend monitor */
1686 if (s->monitor_source) {
1687 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1688 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1691 /* Restore sink volume to what it was before we entered passthrough mode */
1692 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1694 pa_cvolume_init(&s->saved_volume);
1695 s->saved_save_volume = false;
1699 /* Called from main context. */
1700 static void compute_reference_ratio(pa_sink_input *i) {
1702 pa_cvolume remapped;
1706 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1709 * Calculates the reference ratio from the sink's reference
1710 * volume. This basically calculates:
1712 * i->reference_ratio = i->volume / i->sink->reference_volume
1715 remapped = i->sink->reference_volume;
1716 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1718 ratio = i->reference_ratio;
1720 for (c = 0; c < i->sample_spec.channels; c++) {
1722 /* We don't update when the sink volume is 0 anyway */
1723 if (remapped.values[c] <= PA_VOLUME_MUTED)
1726 /* Don't update the reference ratio unless necessary */
1727 if (pa_sw_volume_multiply(
1729 remapped.values[c]) == i->volume.values[c])
1732 ratio.values[c] = pa_sw_volume_divide(
1733 i->volume.values[c],
1734 remapped.values[c]);
1737 pa_sink_input_set_reference_ratio(i, &ratio);
1740 /* Called from main context. Only called for the root sink in volume sharing
1741 * cases, except for internal recursive calls. */
1742 static void compute_reference_ratios(pa_sink *s) {
1746 pa_sink_assert_ref(s);
1747 pa_assert_ctl_context();
1748 pa_assert(PA_SINK_IS_LINKED(s->state));
1749 pa_assert(pa_sink_flat_volume_enabled(s));
1751 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1752 compute_reference_ratio(i);
1754 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1755 && PA_SINK_IS_LINKED(i->origin_sink->state))
1756 compute_reference_ratios(i->origin_sink);
1760 /* Called from main context. Only called for the root sink in volume sharing
1761 * cases, except for internal recursive calls. */
1762 static void compute_real_ratios(pa_sink *s) {
1766 pa_sink_assert_ref(s);
1767 pa_assert_ctl_context();
1768 pa_assert(PA_SINK_IS_LINKED(s->state));
1769 pa_assert(pa_sink_flat_volume_enabled(s));
1771 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1773 pa_cvolume remapped;
1775 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1776 /* The origin sink uses volume sharing, so this input's real ratio
1777 * is handled as a special case - the real ratio must be 0 dB, and
1778 * as a result i->soft_volume must equal i->volume_factor. */
1779 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1780 i->soft_volume = i->volume_factor;
1782 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1783 compute_real_ratios(i->origin_sink);
1789 * This basically calculates:
1791 * i->real_ratio := i->volume / s->real_volume
1792 * i->soft_volume := i->real_ratio * i->volume_factor
1795 remapped = s->real_volume;
1796 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1798 i->real_ratio.channels = i->sample_spec.channels;
1799 i->soft_volume.channels = i->sample_spec.channels;
1801 for (c = 0; c < i->sample_spec.channels; c++) {
1803 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1804 /* We leave i->real_ratio untouched */
1805 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1809 /* Don't lose accuracy unless necessary */
1810 if (pa_sw_volume_multiply(
1811 i->real_ratio.values[c],
1812 remapped.values[c]) != i->volume.values[c])
1814 i->real_ratio.values[c] = pa_sw_volume_divide(
1815 i->volume.values[c],
1816 remapped.values[c]);
1818 i->soft_volume.values[c] = pa_sw_volume_multiply(
1819 i->real_ratio.values[c],
1820 i->volume_factor.values[c]);
1823 /* We don't copy the soft_volume to the thread_info data
1824 * here. That must be done by the caller */
1828 static pa_cvolume *cvolume_remap_minimal_impact(
1830 const pa_cvolume *template,
1831 const pa_channel_map *from,
1832 const pa_channel_map *to) {
1837 pa_assert(template);
1840 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1841 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1843 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1844 * mapping from sink input to sink volumes:
1846 * If template is a possible remapping from v it is used instead
1847 * of remapping anew.
1849 * If the channel maps don't match we set an all-channel volume on
1850 * the sink to ensure that changing a volume on one stream has no
1851 * effect that cannot be compensated for in another stream that
1852 * does not have the same channel map as the sink. */
1854 if (pa_channel_map_equal(from, to))
1858 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1863 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1867 /* Called from main thread. Only called for the root sink in volume sharing
1868 * cases, except for internal recursive calls. */
1869 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1873 pa_sink_assert_ref(s);
1874 pa_assert(max_volume);
1875 pa_assert(channel_map);
1876 pa_assert(pa_sink_flat_volume_enabled(s));
1878 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1879 pa_cvolume remapped;
1881 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1882 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1883 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1885 /* Ignore this input. The origin sink uses volume sharing, so this
1886 * input's volume will be set to be equal to the root sink's real
1887 * volume. Obviously this input's current volume must not then
1888 * affect what the root sink's real volume will be. */
1892 remapped = i->volume;
1893 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1894 pa_cvolume_merge(max_volume, max_volume, &remapped);
1898 /* Called from main thread. Only called for the root sink in volume sharing
1899 * cases, except for internal recursive calls. */
1900 static bool has_inputs(pa_sink *s) {
1904 pa_sink_assert_ref(s);
1906 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1907 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1914 /* Called from main thread. Only called for the root sink in volume sharing
1915 * cases, except for internal recursive calls. */
1916 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1920 pa_sink_assert_ref(s);
1921 pa_assert(new_volume);
1922 pa_assert(channel_map);
1924 s->real_volume = *new_volume;
1925 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1927 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1928 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1929 if (pa_sink_flat_volume_enabled(s)) {
1930 pa_cvolume new_input_volume;
1932 /* Follow the root sink's real volume. */
1933 new_input_volume = *new_volume;
1934 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1935 pa_sink_input_set_volume_direct(i, &new_input_volume);
1936 compute_reference_ratio(i);
1939 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1940 update_real_volume(i->origin_sink, new_volume, channel_map);
1945 /* Called from main thread. Only called for the root sink in shared volume
1947 static void compute_real_volume(pa_sink *s) {
1948 pa_sink_assert_ref(s);
1949 pa_assert_ctl_context();
1950 pa_assert(PA_SINK_IS_LINKED(s->state));
1951 pa_assert(pa_sink_flat_volume_enabled(s));
1952 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1954 /* This determines the maximum volume of all streams and sets
1955 * s->real_volume accordingly. */
1957 if (!has_inputs(s)) {
1958 /* In the special case that we have no sink inputs we leave the
1959 * volume unmodified. */
1960 update_real_volume(s, &s->reference_volume, &s->channel_map);
1964 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1966 /* First let's determine the new maximum volume of all inputs
1967 * connected to this sink */
1968 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1969 update_real_volume(s, &s->real_volume, &s->channel_map);
1971 /* Then, let's update the real ratios/soft volumes of all inputs
1972 * connected to this sink */
1973 compute_real_ratios(s);
1976 /* Called from main thread. Only called for the root sink in shared volume
1977 * cases, except for internal recursive calls. */
1978 static void propagate_reference_volume(pa_sink *s) {
1982 pa_sink_assert_ref(s);
1983 pa_assert_ctl_context();
1984 pa_assert(PA_SINK_IS_LINKED(s->state));
1985 pa_assert(pa_sink_flat_volume_enabled(s));
1987 /* This is called whenever the sink volume changes that is not
1988 * caused by a sink input volume change. We need to fix up the
1989 * sink input volumes accordingly */
1991 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1992 pa_cvolume new_volume;
1994 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1995 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1996 propagate_reference_volume(i->origin_sink);
1998 /* Since the origin sink uses volume sharing, this input's volume
1999 * needs to be updated to match the root sink's real volume, but
2000 * that will be done later in update_real_volume(). */
2004 /* This basically calculates:
2006 * i->volume := s->reference_volume * i->reference_ratio */
2008 new_volume = s->reference_volume;
2009 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2010 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2011 pa_sink_input_set_volume_direct(i, &new_volume);
2015 /* Called from main thread. Only called for the root sink in volume sharing
2016 * cases, except for internal recursive calls. The return value indicates
2017 * whether any reference volume actually changed. */
2018 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2020 bool reference_volume_changed;
2024 pa_sink_assert_ref(s);
2025 pa_assert(PA_SINK_IS_LINKED(s->state));
2027 pa_assert(channel_map);
2028 pa_assert(pa_cvolume_valid(v));
2031 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2033 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2034 pa_sink_set_reference_volume_direct(s, &volume);
2036 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2038 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2039 /* If the root sink's volume doesn't change, then there can't be any
2040 * changes in the other sinks in the sink tree either.
2042 * It's probably theoretically possible that even if the root sink's
2043 * volume changes slightly, some filter sink doesn't change its volume
2044 * due to rounding errors. If that happens, we still want to propagate
2045 * the changed root sink volume to the sinks connected to the
2046 * intermediate sink that didn't change its volume. This theoretical
2047 * possibility is the reason why we have that !(s->flags &
2048 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2049 * notice even if we returned here false always if
2050 * reference_volume_changed is false. */
2053 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2054 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2055 && PA_SINK_IS_LINKED(i->origin_sink->state))
2056 update_reference_volume(i->origin_sink, v, channel_map, false);
2062 /* Called from main thread */
2063 void pa_sink_set_volume(
2065 const pa_cvolume *volume,
2069 pa_cvolume new_reference_volume;
2072 pa_sink_assert_ref(s);
2073 pa_assert_ctl_context();
2074 pa_assert(PA_SINK_IS_LINKED(s->state));
2075 pa_assert(!volume || pa_cvolume_valid(volume));
2076 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2077 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2079 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2080 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2081 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2082 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2086 /* In case of volume sharing, the volume is set for the root sink first,
2087 * from which it's then propagated to the sharing sinks. */
2088 root_sink = pa_sink_get_master(s);
2090 if (PA_UNLIKELY(!root_sink))
2093 /* As a special exception we accept mono volumes on all sinks --
2094 * even on those with more complex channel maps */
2097 if (pa_cvolume_compatible(volume, &s->sample_spec))
2098 new_reference_volume = *volume;
2100 new_reference_volume = s->reference_volume;
2101 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2104 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2106 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2107 if (pa_sink_flat_volume_enabled(root_sink)) {
2108 /* OK, propagate this volume change back to the inputs */
2109 propagate_reference_volume(root_sink);
2111 /* And now recalculate the real volume */
2112 compute_real_volume(root_sink);
2114 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2118 /* If volume is NULL we synchronize the sink's real and
2119 * reference volumes with the stream volumes. */
2121 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2123 /* Ok, let's determine the new real volume */
2124 compute_real_volume(root_sink);
2126 /* Let's 'push' the reference volume if necessary */
2127 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2128 /* If the sink and its root don't have the same number of channels, we need to remap */
2129 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2130 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2131 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2133 /* Now that the reference volume is updated, we can update the streams'
2134 * reference ratios. */
2135 compute_reference_ratios(root_sink);
2138 if (root_sink->set_volume) {
2139 /* If we have a function set_volume(), then we do not apply a
2140 * soft volume by default. However, set_volume() is free to
2141 * apply one to root_sink->soft_volume */
2143 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2144 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2145 root_sink->set_volume(root_sink);
2148 /* If we have no function set_volume(), then the soft volume
2149 * becomes the real volume */
2150 root_sink->soft_volume = root_sink->real_volume;
2152 /* This tells the sink that soft volume and/or real volume changed */
2154 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2157 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2158 * Only to be called by sink implementor */
2159 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2161 pa_sink_assert_ref(s);
2162 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2164 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2165 pa_sink_assert_io_context(s);
2167 pa_assert_ctl_context();
2170 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2172 s->soft_volume = *volume;
2174 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2175 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2177 s->thread_info.soft_volume = s->soft_volume;
2180 /* Called from the main thread. Only called for the root sink in volume sharing
2181 * cases, except for internal recursive calls. */
2182 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2186 pa_sink_assert_ref(s);
2187 pa_assert(old_real_volume);
2188 pa_assert_ctl_context();
2189 pa_assert(PA_SINK_IS_LINKED(s->state));
2191 /* This is called when the hardware's real volume changes due to
2192 * some external event. We copy the real volume into our
2193 * reference volume and then rebuild the stream volumes based on
2194 * i->real_ratio which should stay fixed. */
2196 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2197 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2200 /* 1. Make the real volume the reference volume */
2201 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2204 if (pa_sink_flat_volume_enabled(s)) {
2206 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2207 pa_cvolume new_volume;
2209 /* 2. Since the sink's reference and real volumes are equal
2210 * now our ratios should be too. */
2211 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2213 /* 3. Recalculate the new stream reference volume based on the
2214 * reference ratio and the sink's reference volume.
2216 * This basically calculates:
2218 * i->volume = s->reference_volume * i->reference_ratio
2220 * This is identical to propagate_reference_volume() */
2221 new_volume = s->reference_volume;
2222 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2223 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2224 pa_sink_input_set_volume_direct(i, &new_volume);
2226 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2227 && PA_SINK_IS_LINKED(i->origin_sink->state))
2228 propagate_real_volume(i->origin_sink, old_real_volume);
2232 /* Something got changed in the hardware. It probably makes sense
2233 * to save changed hw settings given that hw volume changes not
2234 * triggered by PA are almost certainly done by the user. */
2235 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2236 s->save_volume = true;
2239 /* Called from io thread */
2240 void pa_sink_update_volume_and_mute(pa_sink *s) {
2242 pa_sink_assert_io_context(s);
2244 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2247 /* Called from main thread */
2248 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2249 pa_sink_assert_ref(s);
2250 pa_assert_ctl_context();
2251 pa_assert(PA_SINK_IS_LINKED(s->state));
2253 if (s->refresh_volume || force_refresh) {
2254 struct pa_cvolume old_real_volume;
2256 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2258 old_real_volume = s->real_volume;
2260 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2263 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2265 update_real_volume(s, &s->real_volume, &s->channel_map);
2266 propagate_real_volume(s, &old_real_volume);
2269 return &s->reference_volume;
2272 /* Called from main thread. In volume sharing cases, only the root sink may
2274 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2275 pa_cvolume old_real_volume;
2277 pa_sink_assert_ref(s);
2278 pa_assert_ctl_context();
2279 pa_assert(PA_SINK_IS_LINKED(s->state));
2280 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2282 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2284 old_real_volume = s->real_volume;
2285 update_real_volume(s, new_real_volume, &s->channel_map);
2286 propagate_real_volume(s, &old_real_volume);
2289 /* Called from main thread */
2290 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2293 pa_sink_assert_ref(s);
2294 pa_assert_ctl_context();
2296 old_muted = s->muted;
2298 if (mute == old_muted) {
2299 s->save_muted |= save;
2304 s->save_muted = save;
2306 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2307 s->set_mute_in_progress = true;
2309 s->set_mute_in_progress = false;
2312 if (!PA_SINK_IS_LINKED(s->state))
2315 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2316 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2317 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2318 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2321 /* Called from main thread */
2322 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2324 pa_sink_assert_ref(s);
2325 pa_assert_ctl_context();
2326 pa_assert(PA_SINK_IS_LINKED(s->state));
2328 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2331 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2332 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2333 pa_sink_mute_changed(s, mute);
2335 if (s->get_mute(s, &mute) >= 0)
2336 pa_sink_mute_changed(s, mute);
2343 /* Called from main thread */
2344 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2345 pa_sink_assert_ref(s);
2346 pa_assert_ctl_context();
2347 pa_assert(PA_SINK_IS_LINKED(s->state));
2349 if (s->set_mute_in_progress)
2352 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2353 * but we must have this here also, because the save parameter of
2354 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2355 * the mute state when it shouldn't be saved). */
2356 if (new_muted == s->muted)
2359 pa_sink_set_mute(s, new_muted, true);
2362 /* Called from main thread */
2363 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2364 pa_sink_assert_ref(s);
2365 pa_assert_ctl_context();
2368 pa_proplist_update(s->proplist, mode, p);
2370 if (PA_SINK_IS_LINKED(s->state)) {
2371 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2372 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2378 /* Called from main thread */
2379 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2380 void pa_sink_set_description(pa_sink *s, const char *description) {
2382 pa_sink_assert_ref(s);
2383 pa_assert_ctl_context();
2385 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2388 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2390 if (old && description && pa_streq(old, description))
2394 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2396 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2398 if (s->monitor_source) {
2401 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2402 pa_source_set_description(s->monitor_source, n);
2406 if (PA_SINK_IS_LINKED(s->state)) {
2407 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2408 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2412 /* Called from main thread */
2413 unsigned pa_sink_linked_by(pa_sink *s) {
2416 pa_sink_assert_ref(s);
2417 pa_assert_ctl_context();
2418 pa_assert(PA_SINK_IS_LINKED(s->state));
2420 ret = pa_idxset_size(s->inputs);
2422 /* We add in the number of streams connected to us here. Please
2423 * note the asymmetry to pa_sink_used_by()! */
2425 if (s->monitor_source)
2426 ret += pa_source_linked_by(s->monitor_source);
2431 /* Called from main thread */
2432 unsigned pa_sink_used_by(pa_sink *s) {
2435 pa_sink_assert_ref(s);
2436 pa_assert_ctl_context();
2437 pa_assert(PA_SINK_IS_LINKED(s->state));
2439 ret = pa_idxset_size(s->inputs);
2440 pa_assert(ret >= s->n_corked);
2442 /* Streams connected to our monitor source do not matter for
2443 * pa_sink_used_by()!.*/
2445 return ret - s->n_corked;
2448 /* Called from main thread */
2449 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2454 pa_sink_assert_ref(s);
2455 pa_assert_ctl_context();
2457 if (!PA_SINK_IS_LINKED(s->state))
2462 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2463 pa_sink_input_state_t st;
2465 if (i == ignore_input)
2468 st = pa_sink_input_get_state(i);
2470 /* We do not assert here. It is perfectly valid for a sink input to
2471 * be in the INIT state (i.e. created, marked done but not yet put)
2472 * and we should not care if it's unlinked as it won't contribute
2473 * towards our busy status.
2475 if (!PA_SINK_INPUT_IS_LINKED(st))
2478 if (st == PA_SINK_INPUT_CORKED)
2481 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2487 if (s->monitor_source)
2488 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2493 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2495 case PA_SINK_INIT: return "INIT";
2496 case PA_SINK_IDLE: return "IDLE";
2497 case PA_SINK_RUNNING: return "RUNNING";
2498 case PA_SINK_SUSPENDED: return "SUSPENDED";
2499 case PA_SINK_UNLINKED: return "UNLINKED";
2500 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2503 pa_assert_not_reached();
2506 /* Called from the IO thread */
2507 static void sync_input_volumes_within_thread(pa_sink *s) {
2511 pa_sink_assert_ref(s);
2512 pa_sink_assert_io_context(s);
2514 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2515 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2518 i->thread_info.soft_volume = i->soft_volume;
2519 pa_sink_input_request_rewind(i, 0, true, false, false);
2523 /* Called from the IO thread. Only called for the root sink in volume sharing
2524 * cases, except for internal recursive calls. */
2525 static void set_shared_volume_within_thread(pa_sink *s) {
2526 pa_sink_input *i = NULL;
2529 pa_sink_assert_ref(s);
2531 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2533 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2534 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2535 set_shared_volume_within_thread(i->origin_sink);
2539 /* Called from IO thread, except when it is not */
2540 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2541 pa_sink *s = PA_SINK(o);
2542 pa_sink_assert_ref(s);
2544 switch ((pa_sink_message_t) code) {
2546 case PA_SINK_MESSAGE_ADD_INPUT: {
2547 pa_sink_input *i = PA_SINK_INPUT(userdata);
2549 /* If you change anything here, make sure to change the
2550 * sink input handling a few lines down at
2551 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2553 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2555 /* Since the caller sleeps in pa_sink_input_put(), we can
2556 * safely access data outside of thread_info even though
2559 if ((i->thread_info.sync_prev = i->sync_prev)) {
2560 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2561 pa_assert(i->sync_prev->sync_next == i);
2562 i->thread_info.sync_prev->thread_info.sync_next = i;
2565 if ((i->thread_info.sync_next = i->sync_next)) {
2566 pa_assert(i->sink == i->thread_info.sync_next->sink);
2567 pa_assert(i->sync_next->sync_prev == i);
2568 i->thread_info.sync_next->thread_info.sync_prev = i;
2571 pa_sink_input_attach(i);
2573 pa_sink_input_set_state_within_thread(i, i->state);
2575 /* The requested latency of the sink input needs to be fixed up and
2576 * then configured on the sink. If this causes the sink latency to
2577 * go down, the sink implementor is responsible for doing a rewind
2578 * in the update_requested_latency() callback to ensure that the
2579 * sink buffer doesn't contain more data than what the new latency
2582 * XXX: Does it really make sense to push this responsibility to
2583 * the sink implementors? Wouldn't it be better to do it once in
2584 * the core than many times in the modules? */
2586 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2587 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2589 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2590 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2592 /* We don't rewind here automatically. This is left to the
2593 * sink input implementor because some sink inputs need a
2594 * slow start, i.e. need some time to buffer client
2595 * samples before beginning streaming.
2597 * XXX: Does it really make sense to push this functionality to
2598 * the sink implementors? Wouldn't it be better to do it once in
2599 * the core than many times in the modules? */
2601 /* In flat volume mode we need to update the volume as
2603 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2606 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2607 pa_sink_input *i = PA_SINK_INPUT(userdata);
2609 /* If you change anything here, make sure to change the
2610 * sink input handling a few lines down at
2611 * PA_SINK_MESSAGE_START_MOVE, too. */
2613 pa_sink_input_detach(i);
2615 pa_sink_input_set_state_within_thread(i, i->state);
2617 /* Since the caller sleeps in pa_sink_input_unlink(),
2618 * we can safely access data outside of thread_info even
2619 * though it is mutable */
2621 pa_assert(!i->sync_prev);
2622 pa_assert(!i->sync_next);
2624 if (i->thread_info.sync_prev) {
2625 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2626 i->thread_info.sync_prev = NULL;
2629 if (i->thread_info.sync_next) {
2630 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2631 i->thread_info.sync_next = NULL;
2634 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2635 pa_sink_invalidate_requested_latency(s, true);
2636 pa_sink_request_rewind(s, (size_t) -1);
2638 /* In flat volume mode we need to update the volume as
2640 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2643 case PA_SINK_MESSAGE_START_MOVE: {
2644 pa_sink_input *i = PA_SINK_INPUT(userdata);
2646 /* We don't support moving synchronized streams. */
2647 pa_assert(!i->sync_prev);
2648 pa_assert(!i->sync_next);
2649 pa_assert(!i->thread_info.sync_next);
2650 pa_assert(!i->thread_info.sync_prev);
2652 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2654 size_t sink_nbytes, total_nbytes;
2656 /* The old sink probably has some audio from this
2657 * stream in its buffer. We want to "take it back" as
2658 * much as possible and play it to the new sink. We
2659 * don't know at this point how much the old sink can
2660 * rewind. We have to pick something, and that
2661 * something is the full latency of the old sink here.
2662 * So we rewind the stream buffer by the sink latency
2663 * amount, which may be more than what we should
2664 * rewind. This can result in a chunk of audio being
2665 * played both to the old sink and the new sink.
2667 * FIXME: Fix this code so that we don't have to make
2668 * guesses about how much the sink will actually be
2669 * able to rewind. If someone comes up with a solution
2670 * for this, something to note is that the part of the
2671 * latency that the old sink couldn't rewind should
2672 * ideally be compensated after the stream has moved
2673 * to the new sink by adding silence. The new sink
2674 * most likely can't start playing the moved stream
2675 * immediately, and that gap should be removed from
2676 * the "compensation silence" (at least at the time of
2677 * writing this, the move finish code will actually
2678 * already take care of dropping the new sink's
2679 * unrewindable latency, so taking into account the
2680 * unrewindable latency of the old sink is the only
2683 * The render_memblockq contents are discarded,
2684 * because when the sink changes, the format of the
2685 * audio stored in the render_memblockq may change
2686 * too, making the stored audio invalid. FIXME:
2687 * However, the read and write indices are moved back
2688 * the same amount, so if they are not the same now,
2689 * they won't be the same after the rewind either. If
2690 * the write index of the render_memblockq is ahead of
2691 * the read index, then the render_memblockq will feed
2692 * the new sink some silence first, which it shouldn't
2693 * do. The write index should be flushed to be the
2694 * same as the read index. */
2696 /* Get the latency of the sink */
2697 usec = pa_sink_get_latency_within_thread(s, false);
2698 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2699 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2701 if (total_nbytes > 0) {
2702 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2703 i->thread_info.rewrite_flush = true;
2704 pa_sink_input_process_rewind(i, sink_nbytes);
2708 pa_sink_input_detach(i);
2710 /* Let's remove the sink input ...*/
2711 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2713 pa_sink_invalidate_requested_latency(s, true);
2715 pa_log_debug("Requesting rewind due to started move");
2716 pa_sink_request_rewind(s, (size_t) -1);
2718 /* In flat volume mode we need to update the volume as
2720 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2723 case PA_SINK_MESSAGE_FINISH_MOVE: {
2724 pa_sink_input *i = PA_SINK_INPUT(userdata);
2726 /* We don't support moving synchronized streams. */
2727 pa_assert(!i->sync_prev);
2728 pa_assert(!i->sync_next);
2729 pa_assert(!i->thread_info.sync_next);
2730 pa_assert(!i->thread_info.sync_prev);
2732 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2734 pa_sink_input_attach(i);
2736 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2740 /* In the ideal case the new sink would start playing
2741 * the stream immediately. That requires the sink to
2742 * be able to rewind all of its latency, which usually
2743 * isn't possible, so there will probably be some gap
2744 * before the moved stream becomes audible. We then
2745 * have two possibilities: 1) start playing the stream
2746 * from where it is now, or 2) drop the unrewindable
2747 * latency of the sink from the stream. With option 1
2748 * we won't lose any audio but the stream will have a
2749 * pause. With option 2 we may lose some audio but the
2750 * stream time will be somewhat in sync with the wall
2751 * clock. Lennart seems to have chosen option 2 (one
2752 * of the reasons might have been that option 1 is
2753 * actually much harder to implement), so we drop the
2754 * latency of the new sink from the moved stream and
2755 * hope that the sink will undo most of that in the
2758 /* Get the latency of the sink */
2759 usec = pa_sink_get_latency_within_thread(s, false);
2760 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2763 pa_sink_input_drop(i, nbytes);
2765 pa_log_debug("Requesting rewind due to finished move");
2766 pa_sink_request_rewind(s, nbytes);
2769 /* Updating the requested sink latency has to be done
2770 * after the sink rewind request, not before, because
2771 * otherwise the sink may limit the rewind amount
2774 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2775 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2777 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2778 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2780 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2783 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2784 pa_sink *root_sink = pa_sink_get_master(s);
2786 if (PA_LIKELY(root_sink))
2787 set_shared_volume_within_thread(root_sink);
2792 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2794 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2796 pa_sink_volume_change_push(s);
2798 /* Fall through ... */
2800 case PA_SINK_MESSAGE_SET_VOLUME:
2802 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2803 s->thread_info.soft_volume = s->soft_volume;
2804 pa_sink_request_rewind(s, (size_t) -1);
2807 /* Fall through ... */
2809 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2810 sync_input_volumes_within_thread(s);
2813 case PA_SINK_MESSAGE_GET_VOLUME:
2815 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2817 pa_sink_volume_change_flush(s);
2818 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2821 /* In case sink implementor reset SW volume. */
2822 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2823 s->thread_info.soft_volume = s->soft_volume;
2824 pa_sink_request_rewind(s, (size_t) -1);
2829 case PA_SINK_MESSAGE_SET_MUTE:
2831 if (s->thread_info.soft_muted != s->muted) {
2832 s->thread_info.soft_muted = s->muted;
2833 pa_sink_request_rewind(s, (size_t) -1);
2836 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2841 case PA_SINK_MESSAGE_GET_MUTE:
2843 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2844 return s->get_mute(s, userdata);
2848 case PA_SINK_MESSAGE_SET_STATE: {
2850 bool suspend_change =
2851 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2852 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2854 if (s->set_state_in_io_thread) {
2857 if ((r = s->set_state_in_io_thread(s, PA_PTR_TO_UINT(userdata))) < 0)
2861 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2863 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2864 s->thread_info.rewind_nbytes = 0;
2865 s->thread_info.rewind_requested = false;
2868 if (suspend_change) {
2872 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2873 if (i->suspend_within_thread)
2874 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2880 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2882 pa_usec_t *usec = userdata;
2883 *usec = pa_sink_get_requested_latency_within_thread(s);
2885 /* Yes, that's right, the IO thread will see -1 when no
2886 * explicit requested latency is configured, the main
2887 * thread will see max_latency */
2888 if (*usec == (pa_usec_t) -1)
2889 *usec = s->thread_info.max_latency;
2894 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2895 pa_usec_t *r = userdata;
2897 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2902 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2903 pa_usec_t *r = userdata;
2905 r[0] = s->thread_info.min_latency;
2906 r[1] = s->thread_info.max_latency;
2911 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2913 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2916 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2918 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2921 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2923 *((size_t*) userdata) = s->thread_info.max_rewind;
2926 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2928 *((size_t*) userdata) = s->thread_info.max_request;
2931 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2933 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2936 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2938 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2941 case PA_SINK_MESSAGE_SET_PORT:
2943 pa_assert(userdata);
2945 struct sink_message_set_port *msg_data = userdata;
2946 msg_data->ret = s->set_port(s, msg_data->port);
2950 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2951 /* This message is sent from IO-thread and handled in main thread. */
2952 pa_assert_ctl_context();
2954 /* Make sure we're not messing with main thread when no longer linked */
2955 if (!PA_SINK_IS_LINKED(s->state))
2958 pa_sink_get_volume(s, true);
2959 pa_sink_get_mute(s, true);
2962 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2963 s->thread_info.port_latency_offset = offset;
2966 case PA_SINK_MESSAGE_GET_LATENCY:
2967 case PA_SINK_MESSAGE_MAX:
2974 /* Called from main thread */
2975 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2980 pa_core_assert_ref(c);
2981 pa_assert_ctl_context();
2982 pa_assert(cause != 0);
2984 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2987 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2994 /* Called from IO thread */
2995 void pa_sink_detach_within_thread(pa_sink *s) {
2999 pa_sink_assert_ref(s);
3000 pa_sink_assert_io_context(s);
3001 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3003 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3004 pa_sink_input_detach(i);
3006 if (s->monitor_source)
3007 pa_source_detach_within_thread(s->monitor_source);
3010 /* Called from IO thread */
3011 void pa_sink_attach_within_thread(pa_sink *s) {
3015 pa_sink_assert_ref(s);
3016 pa_sink_assert_io_context(s);
3017 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3019 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3020 pa_sink_input_attach(i);
3022 if (s->monitor_source)
3023 pa_source_attach_within_thread(s->monitor_source);
3026 /* Called from IO thread */
3027 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3028 pa_sink_assert_ref(s);
3029 pa_sink_assert_io_context(s);
3030 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3032 if (nbytes == (size_t) -1)
3033 nbytes = s->thread_info.max_rewind;
3035 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3037 if (s->thread_info.rewind_requested &&
3038 nbytes <= s->thread_info.rewind_nbytes)
3041 s->thread_info.rewind_nbytes = nbytes;
3042 s->thread_info.rewind_requested = true;
3044 if (s->request_rewind)
3045 s->request_rewind(s);
3048 /* Called from IO thread */
3049 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3050 pa_usec_t result = (pa_usec_t) -1;
3053 pa_usec_t monitor_latency;
3055 pa_sink_assert_ref(s);
3056 pa_sink_assert_io_context(s);
3058 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3059 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3061 if (s->thread_info.requested_latency_valid)
3062 return s->thread_info.requested_latency;
3064 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3065 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3066 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3067 result = i->thread_info.requested_sink_latency;
3069 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3071 if (monitor_latency != (pa_usec_t) -1 &&
3072 (result == (pa_usec_t) -1 || result > monitor_latency))
3073 result = monitor_latency;
3075 if (result != (pa_usec_t) -1)
3076 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3078 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3079 /* Only cache if properly initialized */
3080 s->thread_info.requested_latency = result;
3081 s->thread_info.requested_latency_valid = true;
3087 /* Called from main thread */
3088 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3091 pa_sink_assert_ref(s);
3092 pa_assert_ctl_context();
3093 pa_assert(PA_SINK_IS_LINKED(s->state));
3095 if (s->state == PA_SINK_SUSPENDED)
3098 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3103 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3104 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3108 pa_sink_assert_ref(s);
3109 pa_sink_assert_io_context(s);
3111 if (max_rewind == s->thread_info.max_rewind)
3114 s->thread_info.max_rewind = max_rewind;
3116 if (PA_SINK_IS_LINKED(s->thread_info.state))
3117 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3118 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3120 if (s->monitor_source)
3121 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3124 /* Called from main thread */
3125 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3126 pa_sink_assert_ref(s);
3127 pa_assert_ctl_context();
3129 if (PA_SINK_IS_LINKED(s->state))
3130 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3132 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3135 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3136 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3139 pa_sink_assert_ref(s);
3140 pa_sink_assert_io_context(s);
3142 if (max_request == s->thread_info.max_request)
3145 s->thread_info.max_request = max_request;
3147 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3150 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3151 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3155 /* Called from main thread */
3156 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3157 pa_sink_assert_ref(s);
3158 pa_assert_ctl_context();
3160 if (PA_SINK_IS_LINKED(s->state))
3161 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3163 pa_sink_set_max_request_within_thread(s, max_request);
3166 /* Called from IO thread */
3167 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3171 pa_sink_assert_ref(s);
3172 pa_sink_assert_io_context(s);
3174 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3175 s->thread_info.requested_latency_valid = false;
3179 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3181 if (s->update_requested_latency)
3182 s->update_requested_latency(s);
3184 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3185 if (i->update_sink_requested_latency)
3186 i->update_sink_requested_latency(i);
3190 /* Called from main thread */
3191 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3192 pa_sink_assert_ref(s);
3193 pa_assert_ctl_context();
3195 /* min_latency == 0: no limit
3196 * min_latency anything else: specified limit
3198 * Similar for max_latency */
3200 if (min_latency < ABSOLUTE_MIN_LATENCY)
3201 min_latency = ABSOLUTE_MIN_LATENCY;
3203 if (max_latency <= 0 ||
3204 max_latency > ABSOLUTE_MAX_LATENCY)
3205 max_latency = ABSOLUTE_MAX_LATENCY;
3207 pa_assert(min_latency <= max_latency);
3209 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3210 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3211 max_latency == ABSOLUTE_MAX_LATENCY) ||
3212 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3214 if (PA_SINK_IS_LINKED(s->state)) {
3220 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3222 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3225 /* Called from main thread */
3226 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3227 pa_sink_assert_ref(s);
3228 pa_assert_ctl_context();
3229 pa_assert(min_latency);
3230 pa_assert(max_latency);
3232 if (PA_SINK_IS_LINKED(s->state)) {
3233 pa_usec_t r[2] = { 0, 0 };
3235 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3237 *min_latency = r[0];
3238 *max_latency = r[1];
3240 *min_latency = s->thread_info.min_latency;
3241 *max_latency = s->thread_info.max_latency;
3245 /* Called from IO thread */
3246 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3247 pa_sink_assert_ref(s);
3248 pa_sink_assert_io_context(s);
3250 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3251 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3252 pa_assert(min_latency <= max_latency);
3254 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3255 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3256 max_latency == ABSOLUTE_MAX_LATENCY) ||
3257 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3259 if (s->thread_info.min_latency == min_latency &&
3260 s->thread_info.max_latency == max_latency)
3263 s->thread_info.min_latency = min_latency;
3264 s->thread_info.max_latency = max_latency;
3266 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3270 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3271 if (i->update_sink_latency_range)
3272 i->update_sink_latency_range(i);
3275 pa_sink_invalidate_requested_latency(s, false);
3277 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3280 /* Called from main thread */
3281 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3282 pa_sink_assert_ref(s);
3283 pa_assert_ctl_context();
3285 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3286 pa_assert(latency == 0);
3290 if (latency < ABSOLUTE_MIN_LATENCY)
3291 latency = ABSOLUTE_MIN_LATENCY;
3293 if (latency > ABSOLUTE_MAX_LATENCY)
3294 latency = ABSOLUTE_MAX_LATENCY;
3296 if (PA_SINK_IS_LINKED(s->state))
3297 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3299 s->thread_info.fixed_latency = latency;
3301 pa_source_set_fixed_latency(s->monitor_source, latency);
3304 /* Called from main thread */
3305 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3308 pa_sink_assert_ref(s);
3309 pa_assert_ctl_context();
3311 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3314 if (PA_SINK_IS_LINKED(s->state))
3315 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3317 latency = s->thread_info.fixed_latency;
3322 /* Called from IO thread */
3323 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3324 pa_sink_assert_ref(s);
3325 pa_sink_assert_io_context(s);
3327 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3328 pa_assert(latency == 0);
3329 s->thread_info.fixed_latency = 0;
3331 if (s->monitor_source)
3332 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3337 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3338 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3340 if (s->thread_info.fixed_latency == latency)
3343 s->thread_info.fixed_latency = latency;
3345 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3349 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3350 if (i->update_sink_fixed_latency)
3351 i->update_sink_fixed_latency(i);
3354 pa_sink_invalidate_requested_latency(s, false);
3356 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3359 /* Called from main context */
3360 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3361 pa_sink_assert_ref(s);
3363 s->port_latency_offset = offset;
3365 if (PA_SINK_IS_LINKED(s->state))
3366 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3368 s->thread_info.port_latency_offset = offset;
3370 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3373 /* Called from main context */
3374 size_t pa_sink_get_max_rewind(pa_sink *s) {
3376 pa_assert_ctl_context();
3377 pa_sink_assert_ref(s);
3379 if (!PA_SINK_IS_LINKED(s->state))
3380 return s->thread_info.max_rewind;
3382 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3387 /* Called from main context */
3388 size_t pa_sink_get_max_request(pa_sink *s) {
3390 pa_sink_assert_ref(s);
3391 pa_assert_ctl_context();
3393 if (!PA_SINK_IS_LINKED(s->state))
3394 return s->thread_info.max_request;
3396 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3401 /* Called from main context */
3402 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3403 pa_device_port *port;
3406 pa_sink_assert_ref(s);
3407 pa_assert_ctl_context();
3410 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3411 return -PA_ERR_NOTIMPLEMENTED;
3415 return -PA_ERR_NOENTITY;
3417 if (!(port = pa_hashmap_get(s->ports, name)))
3418 return -PA_ERR_NOENTITY;
3420 if (s->active_port == port) {
3421 s->save_port = s->save_port || save;
3425 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3426 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3427 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3431 ret = s->set_port(s, port);
3434 return -PA_ERR_NOENTITY;
3436 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3438 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3440 s->active_port = port;
3441 s->save_port = save;
3443 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3445 /* The active port affects the default sink selection. */
3446 pa_core_update_default_sink(s->core);
3448 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3453 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3454 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3458 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3461 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3463 if (pa_streq(ff, "microphone"))
3464 t = "audio-input-microphone";
3465 else if (pa_streq(ff, "webcam"))
3467 else if (pa_streq(ff, "computer"))
3469 else if (pa_streq(ff, "handset"))
3471 else if (pa_streq(ff, "portable"))
3472 t = "multimedia-player";
3473 else if (pa_streq(ff, "tv"))
3474 t = "video-display";
3477 * The following icons are not part of the icon naming spec,
3478 * because Rodney Dawes sucks as the maintainer of that spec.
3480 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3482 else if (pa_streq(ff, "headset"))
3483 t = "audio-headset";
3484 else if (pa_streq(ff, "headphone"))
3485 t = "audio-headphones";
3486 else if (pa_streq(ff, "speaker"))
3487 t = "audio-speakers";
3488 else if (pa_streq(ff, "hands-free"))
3489 t = "audio-handsfree";
3493 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3494 if (pa_streq(c, "modem"))
3501 t = "audio-input-microphone";
3504 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3505 if (strstr(profile, "analog"))
3507 else if (strstr(profile, "iec958"))
3509 else if (strstr(profile, "hdmi"))
3513 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3515 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3520 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3521 const char *s, *d = NULL, *k;
3524 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3528 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3532 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3533 if (pa_streq(s, "internal"))
3534 d = _("Built-in Audio");
3537 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3538 if (pa_streq(s, "modem"))
3542 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3547 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3550 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3552 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3557 bool pa_device_init_intended_roles(pa_proplist *p) {
3561 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3564 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3565 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3566 || pa_streq(s, "headset")) {
3567 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3574 unsigned pa_device_init_priority(pa_proplist *p) {
3576 unsigned priority = 0;
3580 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3582 if (pa_streq(s, "sound"))
3584 else if (!pa_streq(s, "modem"))
3588 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3590 if (pa_streq(s, "headphone"))
3592 else if (pa_streq(s, "hifi"))
3594 else if (pa_streq(s, "speaker"))
3596 else if (pa_streq(s, "portable"))
3600 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3602 if (pa_streq(s, "bluetooth"))
3604 else if (pa_streq(s, "usb"))
3606 else if (pa_streq(s, "pci"))
3610 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3612 if (pa_startswith(s, "analog-"))
3614 else if (pa_startswith(s, "iec958-"))
3621 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3623 /* Called from the IO thread. */
3624 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3625 pa_sink_volume_change *c;
3626 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3627 c = pa_xnew(pa_sink_volume_change, 1);
3629 PA_LLIST_INIT(pa_sink_volume_change, c);
3631 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3635 /* Called from the IO thread. */
3636 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3638 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3642 /* Called from the IO thread. */
3643 void pa_sink_volume_change_push(pa_sink *s) {
3644 pa_sink_volume_change *c = NULL;
3645 pa_sink_volume_change *nc = NULL;
3646 pa_sink_volume_change *pc = NULL;
3647 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3649 const char *direction = NULL;
3652 nc = pa_sink_volume_change_new(s);
3654 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3655 * Adding one more volume for HW would get us rid of this, but I am trying
3656 * to survive with the ones we already have. */
3657 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3659 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3660 pa_log_debug("Volume not changing");
3661 pa_sink_volume_change_free(nc);
3665 nc->at = pa_sink_get_latency_within_thread(s, false);
3666 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3668 if (s->thread_info.volume_changes_tail) {
3669 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3670 /* If volume is going up let's do it a bit late. If it is going
3671 * down let's do it a bit early. */
3672 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3673 if (nc->at + safety_margin > c->at) {
3674 nc->at += safety_margin;
3679 else if (nc->at - safety_margin > c->at) {
3680 nc->at -= safety_margin;
3688 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3689 nc->at += safety_margin;
3692 nc->at -= safety_margin;
3695 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3698 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3701 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3703 /* We can ignore volume events that came earlier but should happen later than this. */
3704 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3705 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3706 pa_sink_volume_change_free(c);
3709 s->thread_info.volume_changes_tail = nc;
3712 /* Called from the IO thread. */
3713 static void pa_sink_volume_change_flush(pa_sink *s) {
3714 pa_sink_volume_change *c = s->thread_info.volume_changes;
3716 s->thread_info.volume_changes = NULL;
3717 s->thread_info.volume_changes_tail = NULL;
3719 pa_sink_volume_change *next = c->next;
3720 pa_sink_volume_change_free(c);
3725 /* Called from the IO thread. */
3726 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3732 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3738 pa_assert(s->write_volume);
3740 now = pa_rtclock_now();
3742 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3743 pa_sink_volume_change *c = s->thread_info.volume_changes;
3744 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3745 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3746 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3748 s->thread_info.current_hw_volume = c->hw_volume;
3749 pa_sink_volume_change_free(c);
3755 if (s->thread_info.volume_changes) {
3757 *usec_to_next = s->thread_info.volume_changes->at - now;
3758 if (pa_log_ratelimit(PA_LOG_DEBUG))
3759 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3764 s->thread_info.volume_changes_tail = NULL;
3769 /* Called from the IO thread. */
3770 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3771 /* All the queued volume events later than current latency are shifted to happen earlier. */
3772 pa_sink_volume_change *c;
3773 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3774 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3775 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3777 pa_log_debug("latency = %lld", (long long) limit);
3778 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3780 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3781 pa_usec_t modified_limit = limit;
3782 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3783 modified_limit -= s->thread_info.volume_change_safety_margin;
3785 modified_limit += s->thread_info.volume_change_safety_margin;
3786 if (c->at > modified_limit) {
3788 if (c->at < modified_limit)
3789 c->at = modified_limit;
3791 prev_vol = pa_cvolume_avg(&c->hw_volume);
3793 pa_sink_volume_change_apply(s, NULL);
3796 /* Called from the main thread */
3797 /* Gets the list of formats supported by the sink. The members and idxset must
3798 * be freed by the caller. */
3799 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3804 if (s->get_formats) {
3805 /* Sink supports format query, all is good */
3806 ret = s->get_formats(s);
3808 /* Sink doesn't support format query, so assume it does PCM */
3809 pa_format_info *f = pa_format_info_new();
3810 f->encoding = PA_ENCODING_PCM;
3812 ret = pa_idxset_new(NULL, NULL);
3813 pa_idxset_put(ret, f, NULL);
3819 /* Called from the main thread */
3820 /* Allows an external source to set what formats a sink supports if the sink
3821 * permits this. The function makes a copy of the formats on success. */
3822 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3827 /* Sink supports setting formats -- let's give it a shot */
3828 return s->set_formats(s, formats);
3830 /* Sink doesn't support setting this -- bail out */
3834 /* Called from the main thread */
3835 /* Checks if the sink can accept this format */
3836 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3837 pa_idxset *formats = NULL;
3843 formats = pa_sink_get_formats(s);
3846 pa_format_info *finfo_device;
3849 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3850 if (pa_format_info_is_compatible(finfo_device, f)) {
3856 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3862 /* Called from the main thread */
3863 /* Calculates the intersection between formats supported by the sink and
3864 * in_formats, and returns these, in the order of the sink's formats. */
3865 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3866 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3867 pa_format_info *f_sink, *f_in;
3872 if (!in_formats || pa_idxset_isempty(in_formats))
3875 sink_formats = pa_sink_get_formats(s);
3877 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3878 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3879 if (pa_format_info_is_compatible(f_sink, f_in))
3880 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3886 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3891 /* Called from the main thread. */
3892 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3893 pa_cvolume old_volume;
3894 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3895 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3900 old_volume = s->reference_volume;
3902 if (pa_cvolume_equal(volume, &old_volume))
3905 s->reference_volume = *volume;
3906 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3907 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3908 s->flags & PA_SINK_DECIBEL_VOLUME),
3909 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3910 s->flags & PA_SINK_DECIBEL_VOLUME));
3912 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3913 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);