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 set_state_data {
68 pa_sink_state_t state;
69 pa_suspend_cause_t suspend_cause;
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 s->name = pa_xstrdup(name);
258 s->proplist = pa_proplist_copy(data->proplist);
259 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
260 s->module = data->module;
261 s->card = data->card;
263 s->priority = pa_device_init_priority(s->proplist);
265 s->sample_spec = data->sample_spec;
266 s->channel_map = data->channel_map;
267 s->default_sample_rate = s->sample_spec.rate;
269 if (data->alternate_sample_rate_is_set)
270 s->alternate_sample_rate = data->alternate_sample_rate;
272 s->alternate_sample_rate = s->core->alternate_sample_rate;
274 s->avoid_resampling = data->avoid_resampling;
276 s->inputs = pa_idxset_new(NULL, NULL);
278 s->input_to_master = NULL;
280 s->reference_volume = s->real_volume = data->volume;
281 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
282 s->base_volume = PA_VOLUME_NORM;
283 s->n_volume_steps = PA_VOLUME_NORM+1;
284 s->muted = data->muted;
285 s->refresh_volume = s->refresh_muted = false;
292 /* As a minor optimization we just steal the list instead of
294 s->ports = data->ports;
297 s->active_port = NULL;
298 s->save_port = false;
300 if (data->active_port)
301 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
302 s->save_port = data->save_port;
304 /* Hopefully the active port has already been assigned in the previous call
305 to pa_device_port_find_best, but better safe than sorry */
307 s->active_port = pa_device_port_find_best(s->ports);
310 s->port_latency_offset = s->active_port->latency_offset;
312 s->port_latency_offset = 0;
314 s->save_volume = data->save_volume;
315 s->save_muted = data->save_muted;
317 pa_silence_memchunk_get(
318 &core->silence_cache,
324 s->thread_info.rtpoll = NULL;
325 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
326 (pa_free_cb_t) pa_sink_input_unref);
327 s->thread_info.soft_volume = s->soft_volume;
328 s->thread_info.soft_muted = s->muted;
329 s->thread_info.state = s->state;
330 s->thread_info.rewind_nbytes = 0;
331 s->thread_info.rewind_requested = false;
332 s->thread_info.max_rewind = 0;
333 s->thread_info.max_request = 0;
334 s->thread_info.requested_latency_valid = false;
335 s->thread_info.requested_latency = 0;
336 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
337 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
338 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
340 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
341 s->thread_info.volume_changes_tail = NULL;
342 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
343 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
344 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
345 s->thread_info.port_latency_offset = s->port_latency_offset;
347 /* FIXME: This should probably be moved to pa_sink_put() */
348 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
351 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
353 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
354 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
357 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
358 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
362 pa_source_new_data_init(&source_data);
363 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
364 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
365 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
366 source_data.name = pa_sprintf_malloc("%s.monitor", name);
367 source_data.driver = data->driver;
368 source_data.module = data->module;
369 source_data.card = data->card;
370 source_data.avoid_resampling = data->avoid_resampling;
372 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
373 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
374 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
376 s->monitor_source = pa_source_new(core, &source_data,
377 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
378 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
380 pa_source_new_data_done(&source_data);
382 if (!s->monitor_source) {
388 s->monitor_source->monitor_of = s;
390 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
391 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
392 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
397 /* Called from main context */
398 static int sink_set_state(pa_sink *s, pa_sink_state_t state, pa_suspend_cause_t suspend_cause) {
401 bool suspend_cause_changed;
404 pa_sink_state_t old_state;
405 pa_suspend_cause_t old_suspend_cause;
408 pa_assert_ctl_context();
410 state_changed = state != s->state;
411 suspend_cause_changed = suspend_cause != s->suspend_cause;
413 if (!state_changed && !suspend_cause_changed)
416 suspending = PA_SINK_IS_OPENED(s->state) && state == PA_SINK_SUSPENDED;
417 resuming = s->state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state);
419 /* If we are resuming, suspend_cause must be 0. */
420 pa_assert(!resuming || !suspend_cause);
422 /* Here's something to think about: what to do with the suspend cause if
423 * resuming the sink fails? The old suspend cause will be incorrect, so we
424 * can't use that. On the other hand, if we set no suspend cause (as is the
425 * case currently), then it looks strange to have a sink suspended without
426 * any cause. It might be a good idea to add a new "resume failed" suspend
427 * cause, or it might just add unnecessary complexity, given that the
428 * current approach of not setting any suspend cause works well enough. */
430 if (s->set_state_in_main_thread) {
431 if ((ret = s->set_state_in_main_thread(s, state, suspend_cause)) < 0) {
432 /* set_state_in_main_thread() is allowed to fail only when resuming. */
435 /* If resuming fails, we set the state to SUSPENDED and
436 * suspend_cause to 0. */
437 state = PA_SINK_SUSPENDED;
439 state_changed = false;
440 suspend_cause_changed = suspend_cause != s->suspend_cause;
443 /* We know the state isn't changing. If the suspend cause isn't
444 * changing either, then there's nothing more to do. */
445 if (!suspend_cause_changed)
451 struct set_state_data data = { .state = state, .suspend_cause = suspend_cause };
453 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, &data, 0, NULL)) < 0) {
454 /* SET_STATE is allowed to fail only when resuming. */
457 if (s->set_state_in_main_thread)
458 s->set_state_in_main_thread(s, PA_SINK_SUSPENDED, 0);
460 /* If resuming fails, we set the state to SUSPENDED and
461 * suspend_cause to 0. */
462 state = PA_SINK_SUSPENDED;
464 state_changed = false;
465 suspend_cause_changed = suspend_cause != s->suspend_cause;
468 /* We know the state isn't changing. If the suspend cause isn't
469 * changing either, then there's nothing more to do. */
470 if (!suspend_cause_changed)
475 old_suspend_cause = s->suspend_cause;
476 if (suspend_cause_changed) {
477 char old_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
478 char new_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
480 pa_log_debug("%s: suspend_cause: %s -> %s", s->name, pa_suspend_cause_to_string(s->suspend_cause, old_cause_buf),
481 pa_suspend_cause_to_string(suspend_cause, new_cause_buf));
482 s->suspend_cause = suspend_cause;
485 old_state = s->state;
487 pa_log_debug("%s: state: %s -> %s", s->name, pa_sink_state_to_string(s->state), pa_sink_state_to_string(state));
490 /* If we enter UNLINKED state, then we don't send change notifications.
491 * pa_sink_unlink() will send unlink notifications instead. */
492 if (state != PA_SINK_UNLINKED) {
493 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
494 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
498 if (suspending || resuming || suspend_cause_changed) {
502 /* We're suspending or resuming, tell everyone about it */
504 PA_IDXSET_FOREACH(i, s->inputs, idx)
505 if (s->state == PA_SINK_SUSPENDED &&
506 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
507 pa_sink_input_kill(i);
509 i->suspend(i, old_state, old_suspend_cause);
512 if ((suspending || resuming || suspend_cause_changed) && s->monitor_source && state != PA_SINK_UNLINKED)
513 pa_source_sync_suspend(s->monitor_source);
518 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
524 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
525 pa_sink_flags_t flags;
528 pa_assert(!s->write_volume || cb);
532 /* Save the current flags so we can tell if they've changed */
536 /* The sink implementor is responsible for setting decibel volume support */
537 s->flags |= PA_SINK_HW_VOLUME_CTRL;
539 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
540 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
541 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
544 /* If the flags have changed after init, let any clients know via a change event */
545 if (s->state != PA_SINK_INIT && flags != s->flags)
546 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
549 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
550 pa_sink_flags_t flags;
553 pa_assert(!cb || s->set_volume);
555 s->write_volume = cb;
557 /* Save the current flags so we can tell if they've changed */
561 s->flags |= PA_SINK_DEFERRED_VOLUME;
563 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
565 /* If the flags have changed after init, let any clients know via a change event */
566 if (s->state != PA_SINK_INIT && flags != s->flags)
567 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
570 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
576 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
577 pa_sink_flags_t flags;
583 /* Save the current flags so we can tell if they've changed */
587 s->flags |= PA_SINK_HW_MUTE_CTRL;
589 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
591 /* If the flags have changed after init, let any clients know via a change event */
592 if (s->state != PA_SINK_INIT && flags != s->flags)
593 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
596 static void enable_flat_volume(pa_sink *s, bool enable) {
597 pa_sink_flags_t flags;
601 /* Always follow the overall user preference here */
602 enable = enable && s->core->flat_volumes;
604 /* Save the current flags so we can tell if they've changed */
608 s->flags |= PA_SINK_FLAT_VOLUME;
610 s->flags &= ~PA_SINK_FLAT_VOLUME;
612 /* If the flags have changed after init, let any clients know via a change event */
613 if (s->state != PA_SINK_INIT && flags != s->flags)
614 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
617 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
618 pa_sink_flags_t flags;
622 /* Save the current flags so we can tell if they've changed */
626 s->flags |= PA_SINK_DECIBEL_VOLUME;
627 enable_flat_volume(s, true);
629 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
630 enable_flat_volume(s, false);
633 /* If the flags have changed after init, let any clients know via a change event */
634 if (s->state != PA_SINK_INIT && flags != s->flags)
635 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
638 /* Called from main context */
639 void pa_sink_put(pa_sink* s) {
640 pa_sink_assert_ref(s);
641 pa_assert_ctl_context();
643 pa_assert(s->state == PA_SINK_INIT);
644 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
646 /* The following fields must be initialized properly when calling _put() */
647 pa_assert(s->asyncmsgq);
648 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
650 /* Generally, flags should be initialized via pa_sink_new(). As a
651 * special exception we allow some volume related flags to be set
652 * between _new() and _put() by the callback setter functions above.
654 * Thus we implement a couple safeguards here which ensure the above
655 * setters were used (or at least the implementor made manual changes
656 * in a compatible way).
658 * Note: All of these flags set here can change over the life time
660 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
661 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
662 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
664 /* XXX: Currently decibel volume is disabled for all sinks that use volume
665 * sharing. When the master sink supports decibel volume, it would be good
666 * to have the flag also in the filter sink, but currently we don't do that
667 * so that the flags of the filter sink never change when it's moved from
668 * a master sink to another. One solution for this problem would be to
669 * remove user-visible volume altogether from filter sinks when volume
670 * sharing is used, but the current approach was easier to implement... */
671 /* We always support decibel volumes in software, otherwise we leave it to
672 * the sink implementor to set this flag as needed.
674 * Note: This flag can also change over the life time of the sink. */
675 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
676 pa_sink_enable_decibel_volume(s, true);
677 s->soft_volume = s->reference_volume;
680 /* If the sink implementor support DB volumes by itself, we should always
681 * try and enable flat volumes too */
682 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
683 enable_flat_volume(s, true);
685 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
686 pa_sink *root_sink = pa_sink_get_master(s);
688 pa_assert(root_sink);
690 s->reference_volume = root_sink->reference_volume;
691 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
693 s->real_volume = root_sink->real_volume;
694 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
696 /* We assume that if the sink implementor changed the default
697 * volume he did so in real_volume, because that is the usual
698 * place where he is supposed to place his changes. */
699 s->reference_volume = s->real_volume;
701 s->thread_info.soft_volume = s->soft_volume;
702 s->thread_info.soft_muted = s->muted;
703 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
705 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
706 || (s->base_volume == PA_VOLUME_NORM
707 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
708 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
709 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
710 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
711 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
713 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
714 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
715 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
717 if (s->suspend_cause)
718 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED, s->suspend_cause) == 0);
720 pa_assert_se(sink_set_state(s, PA_SINK_IDLE, 0) == 0);
722 pa_source_put(s->monitor_source);
724 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
725 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
727 /* It's good to fire the SINK_PUT hook before updating the default sink,
728 * because module-switch-on-connect will set the new sink as the default
729 * sink, and if we were to call pa_core_update_default_sink() before that,
730 * the default sink might change twice, causing unnecessary stream moving. */
732 pa_core_update_default_sink(s->core);
734 pa_core_move_streams_to_newly_available_preferred_sink(s->core, s);
737 /* Called from main context */
738 void pa_sink_unlink(pa_sink* s) {
740 pa_sink_input *i, PA_UNUSED *j = NULL;
742 pa_sink_assert_ref(s);
743 pa_assert_ctl_context();
745 /* Please note that pa_sink_unlink() does more than simply
746 * reversing pa_sink_put(). It also undoes the registrations
747 * already done in pa_sink_new()! */
749 if (s->unlink_requested)
752 s->unlink_requested = true;
754 linked = PA_SINK_IS_LINKED(s->state);
757 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
759 if (s->state != PA_SINK_UNLINKED)
760 pa_namereg_unregister(s->core, s->name);
761 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
763 pa_core_update_default_sink(s->core);
766 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
768 while ((i = pa_idxset_first(s->inputs, NULL))) {
770 pa_sink_input_kill(i);
775 /* It's important to keep the suspend cause unchanged when unlinking,
776 * because if we remove the SESSION suspend cause here, the alsa sink
777 * will sync its volume with the hardware while another user is
778 * active, messing up the volume for that other user. */
779 sink_set_state(s, PA_SINK_UNLINKED, s->suspend_cause);
781 s->state = PA_SINK_UNLINKED;
785 if (s->monitor_source)
786 pa_source_unlink(s->monitor_source);
789 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
790 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
794 /* Called from main context */
795 static void sink_free(pa_object *o) {
796 pa_sink *s = PA_SINK(o);
799 pa_assert_ctl_context();
800 pa_assert(pa_sink_refcnt(s) == 0);
801 pa_assert(!PA_SINK_IS_LINKED(s->state));
803 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
805 pa_sink_volume_change_flush(s);
807 if (s->monitor_source) {
808 pa_source_unref(s->monitor_source);
809 s->monitor_source = NULL;
812 pa_idxset_free(s->inputs, NULL);
813 pa_hashmap_free(s->thread_info.inputs);
815 if (s->silence.memblock)
816 pa_memblock_unref(s->silence.memblock);
822 pa_proplist_free(s->proplist);
825 pa_hashmap_free(s->ports);
830 /* Called from main context, and not while the IO thread is active, please */
831 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
832 pa_sink_assert_ref(s);
833 pa_assert_ctl_context();
837 if (s->monitor_source)
838 pa_source_set_asyncmsgq(s->monitor_source, q);
841 /* Called from main context, and not while the IO thread is active, please */
842 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
843 pa_sink_flags_t old_flags;
844 pa_sink_input *input;
847 pa_sink_assert_ref(s);
848 pa_assert_ctl_context();
850 /* For now, allow only a minimal set of flags to be changed. */
851 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
853 old_flags = s->flags;
854 s->flags = (s->flags & ~mask) | (value & mask);
856 if (s->flags == old_flags)
859 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
860 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
862 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
863 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
864 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
866 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
867 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
869 if (s->monitor_source)
870 pa_source_update_flags(s->monitor_source,
871 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
872 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
873 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
874 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
876 PA_IDXSET_FOREACH(input, s->inputs, idx) {
877 if (input->origin_sink)
878 pa_sink_update_flags(input->origin_sink, mask, value);
882 /* Called from IO context, or before _put() from main context */
883 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
884 pa_sink_assert_ref(s);
885 pa_sink_assert_io_context(s);
887 s->thread_info.rtpoll = p;
889 if (s->monitor_source)
890 pa_source_set_rtpoll(s->monitor_source, p);
893 /* Called from main context */
894 int pa_sink_update_status(pa_sink*s) {
895 pa_sink_assert_ref(s);
896 pa_assert_ctl_context();
897 pa_assert(PA_SINK_IS_LINKED(s->state));
899 if (s->state == PA_SINK_SUSPENDED)
902 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
905 /* Called from main context */
906 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
907 pa_suspend_cause_t merged_cause;
909 pa_sink_assert_ref(s);
910 pa_assert_ctl_context();
911 pa_assert(PA_SINK_IS_LINKED(s->state));
912 pa_assert(cause != 0);
915 merged_cause = s->suspend_cause | cause;
917 merged_cause = s->suspend_cause & ~cause;
920 return sink_set_state(s, PA_SINK_SUSPENDED, merged_cause);
922 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
925 /* Called from main context */
926 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
927 pa_sink_input *i, *n;
930 pa_sink_assert_ref(s);
931 pa_assert_ctl_context();
932 pa_assert(PA_SINK_IS_LINKED(s->state));
937 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
938 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
940 pa_sink_input_ref(i);
942 if (pa_sink_input_start_move(i) >= 0)
945 pa_sink_input_unref(i);
951 /* Called from main context */
952 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
955 pa_sink_assert_ref(s);
956 pa_assert_ctl_context();
957 pa_assert(PA_SINK_IS_LINKED(s->state));
960 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
961 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
962 if (pa_sink_input_finish_move(i, s, save) < 0)
963 pa_sink_input_fail_move(i);
966 pa_sink_input_unref(i);
969 pa_queue_free(q, NULL);
972 /* Called from main context */
973 void pa_sink_move_all_fail(pa_queue *q) {
976 pa_assert_ctl_context();
979 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
980 pa_sink_input_fail_move(i);
981 pa_sink_input_unref(i);
984 pa_queue_free(q, NULL);
987 /* Called from IO thread context */
988 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
993 pa_sink_assert_ref(s);
994 pa_sink_assert_io_context(s);
996 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
997 size_t uf = i->thread_info.underrun_for_sink;
999 /* Propagate down the filter tree */
1000 if (i->origin_sink) {
1001 size_t filter_result, left_to_play_origin;
1003 /* The recursive call works in the origin sink domain ... */
1004 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
1006 /* .. and returns the time to sleep before waking up. We need the
1007 * underrun duration for comparisons, so we undo the subtraction on
1008 * the return value... */
1009 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
1011 /* ... and convert it back to the master sink domain */
1012 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
1014 /* Remember the longest underrun so far */
1015 if (filter_result > result)
1016 result = filter_result;
1020 /* No underrun here, move on */
1022 } else if (uf >= left_to_play) {
1023 /* The sink has possibly consumed all the data the sink input provided */
1024 pa_sink_input_process_underrun(i);
1025 } else if (uf > result) {
1026 /* Remember the longest underrun so far */
1032 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
1033 (long) result, (long) left_to_play - result);
1034 return left_to_play - result;
1037 /* Called from IO thread context */
1038 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1042 pa_sink_assert_ref(s);
1043 pa_sink_assert_io_context(s);
1044 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1046 /* If nobody requested this and this is actually no real rewind
1047 * then we can short cut this. Please note that this means that
1048 * not all rewind requests triggered upstream will always be
1049 * translated in actual requests! */
1050 if (!s->thread_info.rewind_requested && nbytes <= 0)
1053 s->thread_info.rewind_nbytes = 0;
1054 s->thread_info.rewind_requested = false;
1057 pa_log_debug("Processing rewind...");
1058 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1059 pa_sink_volume_change_rewind(s, nbytes);
1062 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1063 pa_sink_input_assert_ref(i);
1064 pa_sink_input_process_rewind(i, nbytes);
1068 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1069 pa_source_process_rewind(s->monitor_source, nbytes);
1073 /* Called from IO thread context */
1074 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1078 size_t mixlength = *length;
1080 pa_sink_assert_ref(s);
1081 pa_sink_assert_io_context(s);
1084 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1085 pa_sink_input_assert_ref(i);
1087 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1089 if (mixlength == 0 || info->chunk.length < mixlength)
1090 mixlength = info->chunk.length;
1092 if (pa_memblock_is_silence(info->chunk.memblock)) {
1093 pa_memblock_unref(info->chunk.memblock);
1097 info->userdata = pa_sink_input_ref(i);
1099 pa_assert(info->chunk.memblock);
1100 pa_assert(info->chunk.length > 0);
1108 *length = mixlength;
1113 /* Called from IO thread context */
1114 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1118 unsigned n_unreffed = 0;
1120 pa_sink_assert_ref(s);
1121 pa_sink_assert_io_context(s);
1123 pa_assert(result->memblock);
1124 pa_assert(result->length > 0);
1126 /* We optimize for the case where the order of the inputs has not changed */
1128 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1130 pa_mix_info* m = NULL;
1132 pa_sink_input_assert_ref(i);
1134 /* Let's try to find the matching entry info the pa_mix_info array */
1135 for (j = 0; j < n; j ++) {
1137 if (info[p].userdata == i) {
1147 /* Drop read data */
1148 pa_sink_input_drop(i, result->length);
1150 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1152 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1153 void *ostate = NULL;
1154 pa_source_output *o;
1157 if (m && m->chunk.memblock) {
1159 pa_memblock_ref(c.memblock);
1160 pa_assert(result->length <= c.length);
1161 c.length = result->length;
1163 pa_memchunk_make_writable(&c, 0);
1164 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1167 pa_memblock_ref(c.memblock);
1168 pa_assert(result->length <= c.length);
1169 c.length = result->length;
1172 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1173 pa_source_output_assert_ref(o);
1174 pa_assert(o->direct_on_input == i);
1175 pa_source_post_direct(s->monitor_source, o, &c);
1178 pa_memblock_unref(c.memblock);
1183 if (m->chunk.memblock) {
1184 pa_memblock_unref(m->chunk.memblock);
1185 pa_memchunk_reset(&m->chunk);
1188 pa_sink_input_unref(m->userdata);
1195 /* Now drop references to entries that are included in the
1196 * pa_mix_info array but don't exist anymore */
1198 if (n_unreffed < n) {
1199 for (; n > 0; info++, n--) {
1201 pa_sink_input_unref(info->userdata);
1202 if (info->chunk.memblock)
1203 pa_memblock_unref(info->chunk.memblock);
1207 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1208 pa_source_post(s->monitor_source, result);
1211 /* Called from IO thread context */
1212 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1213 pa_mix_info info[MAX_MIX_CHANNELS];
1215 size_t block_size_max;
1217 pa_sink_assert_ref(s);
1218 pa_sink_assert_io_context(s);
1219 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1220 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1223 pa_assert(!s->thread_info.rewind_requested);
1224 pa_assert(s->thread_info.rewind_nbytes == 0);
1226 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1227 result->memblock = pa_memblock_ref(s->silence.memblock);
1228 result->index = s->silence.index;
1229 result->length = PA_MIN(s->silence.length, length);
1236 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1238 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1239 if (length > block_size_max)
1240 length = pa_frame_align(block_size_max, &s->sample_spec);
1242 pa_assert(length > 0);
1244 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1248 *result = s->silence;
1249 pa_memblock_ref(result->memblock);
1251 if (result->length > length)
1252 result->length = length;
1254 } else if (n == 1) {
1257 *result = info[0].chunk;
1258 pa_memblock_ref(result->memblock);
1260 if (result->length > length)
1261 result->length = length;
1263 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1265 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1266 pa_memblock_unref(result->memblock);
1267 pa_silence_memchunk_get(&s->core->silence_cache,
1272 } else if (!pa_cvolume_is_norm(&volume)) {
1273 pa_memchunk_make_writable(result, 0);
1274 pa_volume_memchunk(result, &s->sample_spec, &volume);
1278 result->memblock = pa_memblock_new(s->core->mempool, length);
1280 ptr = pa_memblock_acquire(result->memblock);
1281 result->length = pa_mix(info, n,
1284 &s->thread_info.soft_volume,
1285 s->thread_info.soft_muted);
1286 pa_memblock_release(result->memblock);
1291 inputs_drop(s, info, n, result);
1296 /* Called from IO thread context */
1297 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1298 pa_mix_info info[MAX_MIX_CHANNELS];
1300 size_t length, block_size_max;
1302 pa_sink_assert_ref(s);
1303 pa_sink_assert_io_context(s);
1304 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1306 pa_assert(target->memblock);
1307 pa_assert(target->length > 0);
1308 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1310 pa_assert(!s->thread_info.rewind_requested);
1311 pa_assert(s->thread_info.rewind_nbytes == 0);
1313 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1314 pa_silence_memchunk(target, &s->sample_spec);
1320 length = target->length;
1321 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1322 if (length > block_size_max)
1323 length = pa_frame_align(block_size_max, &s->sample_spec);
1325 pa_assert(length > 0);
1327 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1330 if (target->length > length)
1331 target->length = length;
1333 pa_silence_memchunk(target, &s->sample_spec);
1334 } else if (n == 1) {
1337 if (target->length > length)
1338 target->length = length;
1340 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1342 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1343 pa_silence_memchunk(target, &s->sample_spec);
1347 vchunk = info[0].chunk;
1348 pa_memblock_ref(vchunk.memblock);
1350 if (vchunk.length > length)
1351 vchunk.length = length;
1353 if (!pa_cvolume_is_norm(&volume)) {
1354 pa_memchunk_make_writable(&vchunk, 0);
1355 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1358 pa_memchunk_memcpy(target, &vchunk);
1359 pa_memblock_unref(vchunk.memblock);
1365 ptr = pa_memblock_acquire(target->memblock);
1367 target->length = pa_mix(info, n,
1368 (uint8_t*) ptr + target->index, length,
1370 &s->thread_info.soft_volume,
1371 s->thread_info.soft_muted);
1373 pa_memblock_release(target->memblock);
1376 inputs_drop(s, info, n, target);
1381 /* Called from IO thread context */
1382 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1386 pa_sink_assert_ref(s);
1387 pa_sink_assert_io_context(s);
1388 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1390 pa_assert(target->memblock);
1391 pa_assert(target->length > 0);
1392 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1394 pa_assert(!s->thread_info.rewind_requested);
1395 pa_assert(s->thread_info.rewind_nbytes == 0);
1397 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1398 pa_silence_memchunk(target, &s->sample_spec);
1411 pa_sink_render_into(s, &chunk);
1420 /* Called from IO thread context */
1421 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1422 pa_sink_assert_ref(s);
1423 pa_sink_assert_io_context(s);
1424 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1425 pa_assert(length > 0);
1426 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1429 pa_assert(!s->thread_info.rewind_requested);
1430 pa_assert(s->thread_info.rewind_nbytes == 0);
1434 pa_sink_render(s, length, result);
1436 if (result->length < length) {
1439 pa_memchunk_make_writable(result, length);
1441 chunk.memblock = result->memblock;
1442 chunk.index = result->index + result->length;
1443 chunk.length = length - result->length;
1445 pa_sink_render_into_full(s, &chunk);
1447 result->length = length;
1453 /* Called from main thread */
1454 void pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1455 pa_sample_spec desired_spec;
1456 uint32_t default_rate = s->default_sample_rate;
1457 uint32_t alternate_rate = s->alternate_sample_rate;
1460 bool default_rate_is_usable = false;
1461 bool alternate_rate_is_usable = false;
1462 bool avoid_resampling = s->avoid_resampling;
1464 if (pa_sample_spec_equal(spec, &s->sample_spec))
1467 if (!s->reconfigure)
1470 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1471 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1475 if (PA_SINK_IS_RUNNING(s->state)) {
1476 pa_log_info("Cannot update sample spec, SINK_IS_RUNNING, will keep using %s and %u Hz",
1477 pa_sample_format_to_string(s->sample_spec.format), s->sample_spec.rate);
1481 if (s->monitor_source) {
1482 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1483 pa_log_info("Cannot update sample spec, monitor source is RUNNING");
1488 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1491 desired_spec = s->sample_spec;
1494 /* We have to try to use the sink input format and rate */
1495 desired_spec.format = spec->format;
1496 desired_spec.rate = spec->rate;
1498 } else if (avoid_resampling) {
1499 /* We just try to set the sink input's sample rate if it's not too low */
1500 if (spec->rate >= default_rate || spec->rate >= alternate_rate)
1501 desired_spec.rate = spec->rate;
1502 desired_spec.format = spec->format;
1504 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1505 /* We can directly try to use this rate */
1506 desired_spec.rate = spec->rate;
1510 if (desired_spec.rate != spec->rate) {
1511 /* See if we can pick a rate that results in less resampling effort */
1512 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1513 default_rate_is_usable = true;
1514 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1515 default_rate_is_usable = true;
1516 if (alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1517 alternate_rate_is_usable = true;
1518 if (alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1519 alternate_rate_is_usable = true;
1521 if (alternate_rate_is_usable && !default_rate_is_usable)
1522 desired_spec.rate = alternate_rate;
1524 desired_spec.rate = default_rate;
1527 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1530 if (!passthrough && pa_sink_used_by(s) > 0)
1533 pa_log_debug("Suspending sink %s due to changing format, desired format = %s rate = %u",
1534 s->name, pa_sample_format_to_string(desired_spec.format), desired_spec.rate);
1535 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1537 s->reconfigure(s, &desired_spec, passthrough);
1539 /* update monitor source as well */
1540 if (s->monitor_source && !passthrough)
1541 pa_source_reconfigure(s->monitor_source, &s->sample_spec, false);
1542 pa_log_info("Reconfigured successfully");
1544 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1545 if (i->state == PA_SINK_INPUT_CORKED)
1546 pa_sink_input_update_resampler(i);
1549 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1552 /* Called from main thread */
1553 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1556 pa_sink_assert_ref(s);
1557 pa_assert_ctl_context();
1558 pa_assert(PA_SINK_IS_LINKED(s->state));
1560 /* The returned value is supposed to be in the time domain of the sound card! */
1562 if (s->state == PA_SINK_SUSPENDED)
1565 if (!(s->flags & PA_SINK_LATENCY))
1568 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1570 /* the return value is unsigned, so check that the offset can be added to usec without
1572 if (-s->port_latency_offset <= usec)
1573 usec += s->port_latency_offset;
1577 return (pa_usec_t)usec;
1580 /* Called from IO thread */
1581 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1585 pa_sink_assert_ref(s);
1586 pa_sink_assert_io_context(s);
1587 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1589 /* The returned value is supposed to be in the time domain of the sound card! */
1591 if (s->thread_info.state == PA_SINK_SUSPENDED)
1594 if (!(s->flags & PA_SINK_LATENCY))
1597 o = PA_MSGOBJECT(s);
1599 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1601 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1603 /* If allow_negative is false, the call should only return positive values, */
1604 usec += s->thread_info.port_latency_offset;
1605 if (!allow_negative && usec < 0)
1611 /* Called from the main thread (and also from the IO thread while the main
1612 * thread is waiting).
1614 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1615 * set. Instead, flat volume mode is detected by checking whether the root sink
1616 * has the flag set. */
1617 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1618 pa_sink_assert_ref(s);
1620 s = pa_sink_get_master(s);
1623 return (s->flags & PA_SINK_FLAT_VOLUME);
1628 /* Called from the main thread (and also from the IO thread while the main
1629 * thread is waiting). */
1630 pa_sink *pa_sink_get_master(pa_sink *s) {
1631 pa_sink_assert_ref(s);
1633 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1634 if (PA_UNLIKELY(!s->input_to_master))
1637 s = s->input_to_master->sink;
1643 /* Called from main context */
1644 bool pa_sink_is_filter(pa_sink *s) {
1645 pa_sink_assert_ref(s);
1647 return (s->input_to_master != NULL);
1650 /* Called from main context */
1651 bool pa_sink_is_passthrough(pa_sink *s) {
1652 pa_sink_input *alt_i;
1655 pa_sink_assert_ref(s);
1657 /* one and only one PASSTHROUGH input can possibly be connected */
1658 if (pa_idxset_size(s->inputs) == 1) {
1659 alt_i = pa_idxset_first(s->inputs, &idx);
1661 if (pa_sink_input_is_passthrough(alt_i))
1668 /* Called from main context */
1669 void pa_sink_enter_passthrough(pa_sink *s) {
1672 /* The sink implementation is reconfigured for passthrough in
1673 * pa_sink_reconfigure(). This function sets the PA core objects to
1674 * passthrough mode. */
1676 /* disable the monitor in passthrough mode */
1677 if (s->monitor_source) {
1678 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1679 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1682 /* set the volume to NORM */
1683 s->saved_volume = *pa_sink_get_volume(s, true);
1684 s->saved_save_volume = s->save_volume;
1686 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1687 pa_sink_set_volume(s, &volume, true, false);
1689 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1692 /* Called from main context */
1693 void pa_sink_leave_passthrough(pa_sink *s) {
1694 /* Unsuspend monitor */
1695 if (s->monitor_source) {
1696 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1697 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1700 /* Restore sink volume to what it was before we entered passthrough mode */
1701 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1703 pa_cvolume_init(&s->saved_volume);
1704 s->saved_save_volume = false;
1708 /* Called from main context. */
1709 static void compute_reference_ratio(pa_sink_input *i) {
1711 pa_cvolume remapped;
1715 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1718 * Calculates the reference ratio from the sink's reference
1719 * volume. This basically calculates:
1721 * i->reference_ratio = i->volume / i->sink->reference_volume
1724 remapped = i->sink->reference_volume;
1725 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1727 ratio = i->reference_ratio;
1729 for (c = 0; c < i->sample_spec.channels; c++) {
1731 /* We don't update when the sink volume is 0 anyway */
1732 if (remapped.values[c] <= PA_VOLUME_MUTED)
1735 /* Don't update the reference ratio unless necessary */
1736 if (pa_sw_volume_multiply(
1738 remapped.values[c]) == i->volume.values[c])
1741 ratio.values[c] = pa_sw_volume_divide(
1742 i->volume.values[c],
1743 remapped.values[c]);
1746 pa_sink_input_set_reference_ratio(i, &ratio);
1749 /* Called from main context. Only called for the root sink in volume sharing
1750 * cases, except for internal recursive calls. */
1751 static void compute_reference_ratios(pa_sink *s) {
1755 pa_sink_assert_ref(s);
1756 pa_assert_ctl_context();
1757 pa_assert(PA_SINK_IS_LINKED(s->state));
1758 pa_assert(pa_sink_flat_volume_enabled(s));
1760 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1761 compute_reference_ratio(i);
1763 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1764 && PA_SINK_IS_LINKED(i->origin_sink->state))
1765 compute_reference_ratios(i->origin_sink);
1769 /* Called from main context. Only called for the root sink in volume sharing
1770 * cases, except for internal recursive calls. */
1771 static void compute_real_ratios(pa_sink *s) {
1775 pa_sink_assert_ref(s);
1776 pa_assert_ctl_context();
1777 pa_assert(PA_SINK_IS_LINKED(s->state));
1778 pa_assert(pa_sink_flat_volume_enabled(s));
1780 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1782 pa_cvolume remapped;
1784 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1785 /* The origin sink uses volume sharing, so this input's real ratio
1786 * is handled as a special case - the real ratio must be 0 dB, and
1787 * as a result i->soft_volume must equal i->volume_factor. */
1788 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1789 i->soft_volume = i->volume_factor;
1791 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1792 compute_real_ratios(i->origin_sink);
1798 * This basically calculates:
1800 * i->real_ratio := i->volume / s->real_volume
1801 * i->soft_volume := i->real_ratio * i->volume_factor
1804 remapped = s->real_volume;
1805 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1807 i->real_ratio.channels = i->sample_spec.channels;
1808 i->soft_volume.channels = i->sample_spec.channels;
1810 for (c = 0; c < i->sample_spec.channels; c++) {
1812 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1813 /* We leave i->real_ratio untouched */
1814 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1818 /* Don't lose accuracy unless necessary */
1819 if (pa_sw_volume_multiply(
1820 i->real_ratio.values[c],
1821 remapped.values[c]) != i->volume.values[c])
1823 i->real_ratio.values[c] = pa_sw_volume_divide(
1824 i->volume.values[c],
1825 remapped.values[c]);
1827 i->soft_volume.values[c] = pa_sw_volume_multiply(
1828 i->real_ratio.values[c],
1829 i->volume_factor.values[c]);
1832 /* We don't copy the soft_volume to the thread_info data
1833 * here. That must be done by the caller */
1837 static pa_cvolume *cvolume_remap_minimal_impact(
1839 const pa_cvolume *template,
1840 const pa_channel_map *from,
1841 const pa_channel_map *to) {
1846 pa_assert(template);
1849 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1850 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1852 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1853 * mapping from sink input to sink volumes:
1855 * If template is a possible remapping from v it is used instead
1856 * of remapping anew.
1858 * If the channel maps don't match we set an all-channel volume on
1859 * the sink to ensure that changing a volume on one stream has no
1860 * effect that cannot be compensated for in another stream that
1861 * does not have the same channel map as the sink. */
1863 if (pa_channel_map_equal(from, to))
1867 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1872 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1876 /* Called from main thread. Only called for the root sink in volume sharing
1877 * cases, except for internal recursive calls. */
1878 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1882 pa_sink_assert_ref(s);
1883 pa_assert(max_volume);
1884 pa_assert(channel_map);
1885 pa_assert(pa_sink_flat_volume_enabled(s));
1887 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1888 pa_cvolume remapped;
1890 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1891 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1892 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1894 /* Ignore this input. The origin sink uses volume sharing, so this
1895 * input's volume will be set to be equal to the root sink's real
1896 * volume. Obviously this input's current volume must not then
1897 * affect what the root sink's real volume will be. */
1901 remapped = i->volume;
1902 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1903 pa_cvolume_merge(max_volume, max_volume, &remapped);
1907 /* Called from main thread. Only called for the root sink in volume sharing
1908 * cases, except for internal recursive calls. */
1909 static bool has_inputs(pa_sink *s) {
1913 pa_sink_assert_ref(s);
1915 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1916 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1923 /* Called from main thread. Only called for the root sink in volume sharing
1924 * cases, except for internal recursive calls. */
1925 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1929 pa_sink_assert_ref(s);
1930 pa_assert(new_volume);
1931 pa_assert(channel_map);
1933 s->real_volume = *new_volume;
1934 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1936 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1937 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1938 if (pa_sink_flat_volume_enabled(s)) {
1939 pa_cvolume new_input_volume;
1941 /* Follow the root sink's real volume. */
1942 new_input_volume = *new_volume;
1943 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1944 pa_sink_input_set_volume_direct(i, &new_input_volume);
1945 compute_reference_ratio(i);
1948 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1949 update_real_volume(i->origin_sink, new_volume, channel_map);
1954 /* Called from main thread. Only called for the root sink in shared volume
1956 static void compute_real_volume(pa_sink *s) {
1957 pa_sink_assert_ref(s);
1958 pa_assert_ctl_context();
1959 pa_assert(PA_SINK_IS_LINKED(s->state));
1960 pa_assert(pa_sink_flat_volume_enabled(s));
1961 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1963 /* This determines the maximum volume of all streams and sets
1964 * s->real_volume accordingly. */
1966 if (!has_inputs(s)) {
1967 /* In the special case that we have no sink inputs we leave the
1968 * volume unmodified. */
1969 update_real_volume(s, &s->reference_volume, &s->channel_map);
1973 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1975 /* First let's determine the new maximum volume of all inputs
1976 * connected to this sink */
1977 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1978 update_real_volume(s, &s->real_volume, &s->channel_map);
1980 /* Then, let's update the real ratios/soft volumes of all inputs
1981 * connected to this sink */
1982 compute_real_ratios(s);
1985 /* Called from main thread. Only called for the root sink in shared volume
1986 * cases, except for internal recursive calls. */
1987 static void propagate_reference_volume(pa_sink *s) {
1991 pa_sink_assert_ref(s);
1992 pa_assert_ctl_context();
1993 pa_assert(PA_SINK_IS_LINKED(s->state));
1994 pa_assert(pa_sink_flat_volume_enabled(s));
1996 /* This is called whenever the sink volume changes that is not
1997 * caused by a sink input volume change. We need to fix up the
1998 * sink input volumes accordingly */
2000 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2001 pa_cvolume new_volume;
2003 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2004 if (PA_SINK_IS_LINKED(i->origin_sink->state))
2005 propagate_reference_volume(i->origin_sink);
2007 /* Since the origin sink uses volume sharing, this input's volume
2008 * needs to be updated to match the root sink's real volume, but
2009 * that will be done later in update_real_volume(). */
2013 /* This basically calculates:
2015 * i->volume := s->reference_volume * i->reference_ratio */
2017 new_volume = s->reference_volume;
2018 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2019 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2020 pa_sink_input_set_volume_direct(i, &new_volume);
2024 /* Called from main thread. Only called for the root sink in volume sharing
2025 * cases, except for internal recursive calls. The return value indicates
2026 * whether any reference volume actually changed. */
2027 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2029 bool reference_volume_changed;
2033 pa_sink_assert_ref(s);
2034 pa_assert(PA_SINK_IS_LINKED(s->state));
2036 pa_assert(channel_map);
2037 pa_assert(pa_cvolume_valid(v));
2040 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2042 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2043 pa_sink_set_reference_volume_direct(s, &volume);
2045 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2047 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2048 /* If the root sink's volume doesn't change, then there can't be any
2049 * changes in the other sinks in the sink tree either.
2051 * It's probably theoretically possible that even if the root sink's
2052 * volume changes slightly, some filter sink doesn't change its volume
2053 * due to rounding errors. If that happens, we still want to propagate
2054 * the changed root sink volume to the sinks connected to the
2055 * intermediate sink that didn't change its volume. This theoretical
2056 * possibility is the reason why we have that !(s->flags &
2057 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2058 * notice even if we returned here false always if
2059 * reference_volume_changed is false. */
2062 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2063 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2064 && PA_SINK_IS_LINKED(i->origin_sink->state))
2065 update_reference_volume(i->origin_sink, v, channel_map, false);
2071 /* Called from main thread */
2072 void pa_sink_set_volume(
2074 const pa_cvolume *volume,
2078 pa_cvolume new_reference_volume;
2081 pa_sink_assert_ref(s);
2082 pa_assert_ctl_context();
2083 pa_assert(PA_SINK_IS_LINKED(s->state));
2084 pa_assert(!volume || pa_cvolume_valid(volume));
2085 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2086 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2088 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2089 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2090 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2091 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2095 /* In case of volume sharing, the volume is set for the root sink first,
2096 * from which it's then propagated to the sharing sinks. */
2097 root_sink = pa_sink_get_master(s);
2099 if (PA_UNLIKELY(!root_sink))
2102 /* As a special exception we accept mono volumes on all sinks --
2103 * even on those with more complex channel maps */
2106 if (pa_cvolume_compatible(volume, &s->sample_spec))
2107 new_reference_volume = *volume;
2109 new_reference_volume = s->reference_volume;
2110 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2113 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2115 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2116 if (pa_sink_flat_volume_enabled(root_sink)) {
2117 /* OK, propagate this volume change back to the inputs */
2118 propagate_reference_volume(root_sink);
2120 /* And now recalculate the real volume */
2121 compute_real_volume(root_sink);
2123 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2127 /* If volume is NULL we synchronize the sink's real and
2128 * reference volumes with the stream volumes. */
2130 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2132 /* Ok, let's determine the new real volume */
2133 compute_real_volume(root_sink);
2135 /* Let's 'push' the reference volume if necessary */
2136 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2137 /* If the sink and its root don't have the same number of channels, we need to remap */
2138 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2139 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2140 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2142 /* Now that the reference volume is updated, we can update the streams'
2143 * reference ratios. */
2144 compute_reference_ratios(root_sink);
2147 if (root_sink->set_volume) {
2148 /* If we have a function set_volume(), then we do not apply a
2149 * soft volume by default. However, set_volume() is free to
2150 * apply one to root_sink->soft_volume */
2152 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2153 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2154 root_sink->set_volume(root_sink);
2157 /* If we have no function set_volume(), then the soft volume
2158 * becomes the real volume */
2159 root_sink->soft_volume = root_sink->real_volume;
2161 /* This tells the sink that soft volume and/or real volume changed */
2163 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2166 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2167 * Only to be called by sink implementor */
2168 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2170 pa_sink_assert_ref(s);
2171 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2173 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2174 pa_sink_assert_io_context(s);
2176 pa_assert_ctl_context();
2179 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2181 s->soft_volume = *volume;
2183 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2184 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2186 s->thread_info.soft_volume = s->soft_volume;
2189 /* Called from the main thread. Only called for the root sink in volume sharing
2190 * cases, except for internal recursive calls. */
2191 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2195 pa_sink_assert_ref(s);
2196 pa_assert(old_real_volume);
2197 pa_assert_ctl_context();
2198 pa_assert(PA_SINK_IS_LINKED(s->state));
2200 /* This is called when the hardware's real volume changes due to
2201 * some external event. We copy the real volume into our
2202 * reference volume and then rebuild the stream volumes based on
2203 * i->real_ratio which should stay fixed. */
2205 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2206 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2209 /* 1. Make the real volume the reference volume */
2210 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2213 if (pa_sink_flat_volume_enabled(s)) {
2215 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2216 pa_cvolume new_volume;
2218 /* 2. Since the sink's reference and real volumes are equal
2219 * now our ratios should be too. */
2220 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2222 /* 3. Recalculate the new stream reference volume based on the
2223 * reference ratio and the sink's reference volume.
2225 * This basically calculates:
2227 * i->volume = s->reference_volume * i->reference_ratio
2229 * This is identical to propagate_reference_volume() */
2230 new_volume = s->reference_volume;
2231 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2232 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2233 pa_sink_input_set_volume_direct(i, &new_volume);
2235 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2236 && PA_SINK_IS_LINKED(i->origin_sink->state))
2237 propagate_real_volume(i->origin_sink, old_real_volume);
2241 /* Something got changed in the hardware. It probably makes sense
2242 * to save changed hw settings given that hw volume changes not
2243 * triggered by PA are almost certainly done by the user. */
2244 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2245 s->save_volume = true;
2248 /* Called from io thread */
2249 void pa_sink_update_volume_and_mute(pa_sink *s) {
2251 pa_sink_assert_io_context(s);
2253 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2256 /* Called from main thread */
2257 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2258 pa_sink_assert_ref(s);
2259 pa_assert_ctl_context();
2260 pa_assert(PA_SINK_IS_LINKED(s->state));
2262 if (s->refresh_volume || force_refresh) {
2263 struct pa_cvolume old_real_volume;
2265 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2267 old_real_volume = s->real_volume;
2269 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2272 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2274 update_real_volume(s, &s->real_volume, &s->channel_map);
2275 propagate_real_volume(s, &old_real_volume);
2278 return &s->reference_volume;
2281 /* Called from main thread. In volume sharing cases, only the root sink may
2283 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2284 pa_cvolume old_real_volume;
2286 pa_sink_assert_ref(s);
2287 pa_assert_ctl_context();
2288 pa_assert(PA_SINK_IS_LINKED(s->state));
2289 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2291 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2293 old_real_volume = s->real_volume;
2294 update_real_volume(s, new_real_volume, &s->channel_map);
2295 propagate_real_volume(s, &old_real_volume);
2298 /* Called from main thread */
2299 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2302 pa_sink_assert_ref(s);
2303 pa_assert_ctl_context();
2305 old_muted = s->muted;
2307 if (mute == old_muted) {
2308 s->save_muted |= save;
2313 s->save_muted = save;
2315 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2316 s->set_mute_in_progress = true;
2318 s->set_mute_in_progress = false;
2321 if (!PA_SINK_IS_LINKED(s->state))
2324 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2325 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2326 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2327 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2330 /* Called from main thread */
2331 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2333 pa_sink_assert_ref(s);
2334 pa_assert_ctl_context();
2335 pa_assert(PA_SINK_IS_LINKED(s->state));
2337 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2340 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2341 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2342 pa_sink_mute_changed(s, mute);
2344 if (s->get_mute(s, &mute) >= 0)
2345 pa_sink_mute_changed(s, mute);
2352 /* Called from main thread */
2353 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2354 pa_sink_assert_ref(s);
2355 pa_assert_ctl_context();
2356 pa_assert(PA_SINK_IS_LINKED(s->state));
2358 if (s->set_mute_in_progress)
2361 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2362 * but we must have this here also, because the save parameter of
2363 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2364 * the mute state when it shouldn't be saved). */
2365 if (new_muted == s->muted)
2368 pa_sink_set_mute(s, new_muted, true);
2371 /* Called from main thread */
2372 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2373 pa_sink_assert_ref(s);
2374 pa_assert_ctl_context();
2377 pa_proplist_update(s->proplist, mode, p);
2379 if (PA_SINK_IS_LINKED(s->state)) {
2380 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2381 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2387 /* Called from main thread */
2388 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2389 void pa_sink_set_description(pa_sink *s, const char *description) {
2391 pa_sink_assert_ref(s);
2392 pa_assert_ctl_context();
2394 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2397 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2399 if (old && description && pa_streq(old, description))
2403 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2405 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2407 if (s->monitor_source) {
2410 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2411 pa_source_set_description(s->monitor_source, n);
2415 if (PA_SINK_IS_LINKED(s->state)) {
2416 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2417 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2421 /* Called from main thread */
2422 unsigned pa_sink_linked_by(pa_sink *s) {
2425 pa_sink_assert_ref(s);
2426 pa_assert_ctl_context();
2427 pa_assert(PA_SINK_IS_LINKED(s->state));
2429 ret = pa_idxset_size(s->inputs);
2431 /* We add in the number of streams connected to us here. Please
2432 * note the asymmetry to pa_sink_used_by()! */
2434 if (s->monitor_source)
2435 ret += pa_source_linked_by(s->monitor_source);
2440 /* Called from main thread */
2441 unsigned pa_sink_used_by(pa_sink *s) {
2444 pa_sink_assert_ref(s);
2445 pa_assert_ctl_context();
2446 pa_assert(PA_SINK_IS_LINKED(s->state));
2448 ret = pa_idxset_size(s->inputs);
2449 pa_assert(ret >= s->n_corked);
2451 /* Streams connected to our monitor source do not matter for
2452 * pa_sink_used_by()!.*/
2454 return ret - s->n_corked;
2457 /* Called from main thread */
2458 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2463 pa_sink_assert_ref(s);
2464 pa_assert_ctl_context();
2466 if (!PA_SINK_IS_LINKED(s->state))
2471 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2472 if (i == ignore_input)
2475 /* We do not assert here. It is perfectly valid for a sink input to
2476 * be in the INIT state (i.e. created, marked done but not yet put)
2477 * and we should not care if it's unlinked as it won't contribute
2478 * towards our busy status.
2480 if (!PA_SINK_INPUT_IS_LINKED(i->state))
2483 if (i->state == PA_SINK_INPUT_CORKED)
2486 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2492 if (s->monitor_source)
2493 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2498 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2500 case PA_SINK_INIT: return "INIT";
2501 case PA_SINK_IDLE: return "IDLE";
2502 case PA_SINK_RUNNING: return "RUNNING";
2503 case PA_SINK_SUSPENDED: return "SUSPENDED";
2504 case PA_SINK_UNLINKED: return "UNLINKED";
2505 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2508 pa_assert_not_reached();
2511 /* Called from the IO thread */
2512 static void sync_input_volumes_within_thread(pa_sink *s) {
2516 pa_sink_assert_ref(s);
2517 pa_sink_assert_io_context(s);
2519 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2520 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2523 i->thread_info.soft_volume = i->soft_volume;
2524 pa_sink_input_request_rewind(i, 0, true, false, false);
2528 /* Called from the IO thread. Only called for the root sink in volume sharing
2529 * cases, except for internal recursive calls. */
2530 static void set_shared_volume_within_thread(pa_sink *s) {
2531 pa_sink_input *i = NULL;
2534 pa_sink_assert_ref(s);
2536 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2538 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2539 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2540 set_shared_volume_within_thread(i->origin_sink);
2544 /* Called from IO thread, except when it is not */
2545 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2546 pa_sink *s = PA_SINK(o);
2547 pa_sink_assert_ref(s);
2549 switch ((pa_sink_message_t) code) {
2551 case PA_SINK_MESSAGE_ADD_INPUT: {
2552 pa_sink_input *i = PA_SINK_INPUT(userdata);
2554 /* If you change anything here, make sure to change the
2555 * sink input handling a few lines down at
2556 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2558 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2560 /* Since the caller sleeps in pa_sink_input_put(), we can
2561 * safely access data outside of thread_info even though
2564 if ((i->thread_info.sync_prev = i->sync_prev)) {
2565 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2566 pa_assert(i->sync_prev->sync_next == i);
2567 i->thread_info.sync_prev->thread_info.sync_next = i;
2570 if ((i->thread_info.sync_next = i->sync_next)) {
2571 pa_assert(i->sink == i->thread_info.sync_next->sink);
2572 pa_assert(i->sync_next->sync_prev == i);
2573 i->thread_info.sync_next->thread_info.sync_prev = i;
2576 pa_sink_input_attach(i);
2578 pa_sink_input_set_state_within_thread(i, i->state);
2580 /* The requested latency of the sink input needs to be fixed up and
2581 * then configured on the sink. If this causes the sink latency to
2582 * go down, the sink implementor is responsible for doing a rewind
2583 * in the update_requested_latency() callback to ensure that the
2584 * sink buffer doesn't contain more data than what the new latency
2587 * XXX: Does it really make sense to push this responsibility to
2588 * the sink implementors? Wouldn't it be better to do it once in
2589 * the core than many times in the modules? */
2591 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2592 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2594 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2595 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2597 /* We don't rewind here automatically. This is left to the
2598 * sink input implementor because some sink inputs need a
2599 * slow start, i.e. need some time to buffer client
2600 * samples before beginning streaming.
2602 * XXX: Does it really make sense to push this functionality to
2603 * the sink implementors? Wouldn't it be better to do it once in
2604 * the core than many times in the modules? */
2606 /* In flat volume mode we need to update the volume as
2608 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2611 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2612 pa_sink_input *i = PA_SINK_INPUT(userdata);
2614 /* If you change anything here, make sure to change the
2615 * sink input handling a few lines down at
2616 * PA_SINK_MESSAGE_START_MOVE, too. */
2618 pa_sink_input_detach(i);
2620 pa_sink_input_set_state_within_thread(i, i->state);
2622 /* Since the caller sleeps in pa_sink_input_unlink(),
2623 * we can safely access data outside of thread_info even
2624 * though it is mutable */
2626 pa_assert(!i->sync_prev);
2627 pa_assert(!i->sync_next);
2629 if (i->thread_info.sync_prev) {
2630 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2631 i->thread_info.sync_prev = NULL;
2634 if (i->thread_info.sync_next) {
2635 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2636 i->thread_info.sync_next = NULL;
2639 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2640 pa_sink_invalidate_requested_latency(s, true);
2641 pa_sink_request_rewind(s, (size_t) -1);
2643 /* In flat volume mode we need to update the volume as
2645 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2648 case PA_SINK_MESSAGE_START_MOVE: {
2649 pa_sink_input *i = PA_SINK_INPUT(userdata);
2651 /* We don't support moving synchronized streams. */
2652 pa_assert(!i->sync_prev);
2653 pa_assert(!i->sync_next);
2654 pa_assert(!i->thread_info.sync_next);
2655 pa_assert(!i->thread_info.sync_prev);
2657 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2659 size_t sink_nbytes, total_nbytes;
2661 /* The old sink probably has some audio from this
2662 * stream in its buffer. We want to "take it back" as
2663 * much as possible and play it to the new sink. We
2664 * don't know at this point how much the old sink can
2665 * rewind. We have to pick something, and that
2666 * something is the full latency of the old sink here.
2667 * So we rewind the stream buffer by the sink latency
2668 * amount, which may be more than what we should
2669 * rewind. This can result in a chunk of audio being
2670 * played both to the old sink and the new sink.
2672 * FIXME: Fix this code so that we don't have to make
2673 * guesses about how much the sink will actually be
2674 * able to rewind. If someone comes up with a solution
2675 * for this, something to note is that the part of the
2676 * latency that the old sink couldn't rewind should
2677 * ideally be compensated after the stream has moved
2678 * to the new sink by adding silence. The new sink
2679 * most likely can't start playing the moved stream
2680 * immediately, and that gap should be removed from
2681 * the "compensation silence" (at least at the time of
2682 * writing this, the move finish code will actually
2683 * already take care of dropping the new sink's
2684 * unrewindable latency, so taking into account the
2685 * unrewindable latency of the old sink is the only
2688 * The render_memblockq contents are discarded,
2689 * because when the sink changes, the format of the
2690 * audio stored in the render_memblockq may change
2691 * too, making the stored audio invalid. FIXME:
2692 * However, the read and write indices are moved back
2693 * the same amount, so if they are not the same now,
2694 * they won't be the same after the rewind either. If
2695 * the write index of the render_memblockq is ahead of
2696 * the read index, then the render_memblockq will feed
2697 * the new sink some silence first, which it shouldn't
2698 * do. The write index should be flushed to be the
2699 * same as the read index. */
2701 /* Get the latency of the sink */
2702 usec = pa_sink_get_latency_within_thread(s, false);
2703 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2704 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2706 if (total_nbytes > 0) {
2707 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2708 i->thread_info.rewrite_flush = true;
2709 pa_sink_input_process_rewind(i, sink_nbytes);
2713 pa_sink_input_detach(i);
2715 /* Let's remove the sink input ...*/
2716 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2718 pa_sink_invalidate_requested_latency(s, true);
2720 pa_log_debug("Requesting rewind due to started move");
2721 pa_sink_request_rewind(s, (size_t) -1);
2723 /* In flat volume mode we need to update the volume as
2725 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2728 case PA_SINK_MESSAGE_FINISH_MOVE: {
2729 pa_sink_input *i = PA_SINK_INPUT(userdata);
2731 /* We don't support moving synchronized streams. */
2732 pa_assert(!i->sync_prev);
2733 pa_assert(!i->sync_next);
2734 pa_assert(!i->thread_info.sync_next);
2735 pa_assert(!i->thread_info.sync_prev);
2737 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2739 pa_sink_input_attach(i);
2741 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2745 /* In the ideal case the new sink would start playing
2746 * the stream immediately. That requires the sink to
2747 * be able to rewind all of its latency, which usually
2748 * isn't possible, so there will probably be some gap
2749 * before the moved stream becomes audible. We then
2750 * have two possibilities: 1) start playing the stream
2751 * from where it is now, or 2) drop the unrewindable
2752 * latency of the sink from the stream. With option 1
2753 * we won't lose any audio but the stream will have a
2754 * pause. With option 2 we may lose some audio but the
2755 * stream time will be somewhat in sync with the wall
2756 * clock. Lennart seems to have chosen option 2 (one
2757 * of the reasons might have been that option 1 is
2758 * actually much harder to implement), so we drop the
2759 * latency of the new sink from the moved stream and
2760 * hope that the sink will undo most of that in the
2763 /* Get the latency of the sink */
2764 usec = pa_sink_get_latency_within_thread(s, false);
2765 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2768 pa_sink_input_drop(i, nbytes);
2770 pa_log_debug("Requesting rewind due to finished move");
2771 pa_sink_request_rewind(s, nbytes);
2774 /* Updating the requested sink latency has to be done
2775 * after the sink rewind request, not before, because
2776 * otherwise the sink may limit the rewind amount
2779 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2780 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2782 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2783 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2785 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2788 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2789 pa_sink *root_sink = pa_sink_get_master(s);
2791 if (PA_LIKELY(root_sink))
2792 set_shared_volume_within_thread(root_sink);
2797 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2799 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2801 pa_sink_volume_change_push(s);
2803 /* Fall through ... */
2805 case PA_SINK_MESSAGE_SET_VOLUME:
2807 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2808 s->thread_info.soft_volume = s->soft_volume;
2809 pa_sink_request_rewind(s, (size_t) -1);
2812 /* Fall through ... */
2814 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2815 sync_input_volumes_within_thread(s);
2818 case PA_SINK_MESSAGE_GET_VOLUME:
2820 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2822 pa_sink_volume_change_flush(s);
2823 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2826 /* In case sink implementor reset SW volume. */
2827 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2828 s->thread_info.soft_volume = s->soft_volume;
2829 pa_sink_request_rewind(s, (size_t) -1);
2834 case PA_SINK_MESSAGE_SET_MUTE:
2836 if (s->thread_info.soft_muted != s->muted) {
2837 s->thread_info.soft_muted = s->muted;
2838 pa_sink_request_rewind(s, (size_t) -1);
2841 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2846 case PA_SINK_MESSAGE_GET_MUTE:
2848 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2849 return s->get_mute(s, userdata);
2853 case PA_SINK_MESSAGE_SET_STATE: {
2854 struct set_state_data *data = userdata;
2855 bool suspend_change =
2856 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(data->state)) ||
2857 (PA_SINK_IS_OPENED(s->thread_info.state) && data->state == PA_SINK_SUSPENDED);
2859 if (s->set_state_in_io_thread) {
2862 if ((r = s->set_state_in_io_thread(s, data->state, data->suspend_cause)) < 0)
2866 s->thread_info.state = data->state;
2868 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2869 s->thread_info.rewind_nbytes = 0;
2870 s->thread_info.rewind_requested = false;
2873 if (suspend_change) {
2877 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2878 if (i->suspend_within_thread)
2879 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2885 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2887 pa_usec_t *usec = userdata;
2888 *usec = pa_sink_get_requested_latency_within_thread(s);
2890 /* Yes, that's right, the IO thread will see -1 when no
2891 * explicit requested latency is configured, the main
2892 * thread will see max_latency */
2893 if (*usec == (pa_usec_t) -1)
2894 *usec = s->thread_info.max_latency;
2899 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2900 pa_usec_t *r = userdata;
2902 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2907 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2908 pa_usec_t *r = userdata;
2910 r[0] = s->thread_info.min_latency;
2911 r[1] = s->thread_info.max_latency;
2916 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2918 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2921 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2923 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2926 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2928 *((size_t*) userdata) = s->thread_info.max_rewind;
2931 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2933 *((size_t*) userdata) = s->thread_info.max_request;
2936 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2938 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2941 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2943 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2946 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2947 /* This message is sent from IO-thread and handled in main thread. */
2948 pa_assert_ctl_context();
2950 /* Make sure we're not messing with main thread when no longer linked */
2951 if (!PA_SINK_IS_LINKED(s->state))
2954 pa_sink_get_volume(s, true);
2955 pa_sink_get_mute(s, true);
2958 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2959 s->thread_info.port_latency_offset = offset;
2962 case PA_SINK_MESSAGE_GET_LATENCY:
2963 case PA_SINK_MESSAGE_MAX:
2970 /* Called from main thread */
2971 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2976 pa_core_assert_ref(c);
2977 pa_assert_ctl_context();
2978 pa_assert(cause != 0);
2980 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2983 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2990 /* Called from IO thread */
2991 void pa_sink_detach_within_thread(pa_sink *s) {
2995 pa_sink_assert_ref(s);
2996 pa_sink_assert_io_context(s);
2997 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2999 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3000 pa_sink_input_detach(i);
3002 if (s->monitor_source)
3003 pa_source_detach_within_thread(s->monitor_source);
3006 /* Called from IO thread */
3007 void pa_sink_attach_within_thread(pa_sink *s) {
3011 pa_sink_assert_ref(s);
3012 pa_sink_assert_io_context(s);
3013 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3015 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3016 pa_sink_input_attach(i);
3018 if (s->monitor_source)
3019 pa_source_attach_within_thread(s->monitor_source);
3022 /* Called from IO thread */
3023 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3024 pa_sink_assert_ref(s);
3025 pa_sink_assert_io_context(s);
3026 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3028 if (nbytes == (size_t) -1)
3029 nbytes = s->thread_info.max_rewind;
3031 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3033 if (s->thread_info.rewind_requested &&
3034 nbytes <= s->thread_info.rewind_nbytes)
3037 s->thread_info.rewind_nbytes = nbytes;
3038 s->thread_info.rewind_requested = true;
3040 if (s->request_rewind)
3041 s->request_rewind(s);
3044 /* Called from IO thread */
3045 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3046 pa_usec_t result = (pa_usec_t) -1;
3049 pa_usec_t monitor_latency;
3051 pa_sink_assert_ref(s);
3052 pa_sink_assert_io_context(s);
3054 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3055 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3057 if (s->thread_info.requested_latency_valid)
3058 return s->thread_info.requested_latency;
3060 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3061 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3062 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3063 result = i->thread_info.requested_sink_latency;
3065 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3067 if (monitor_latency != (pa_usec_t) -1 &&
3068 (result == (pa_usec_t) -1 || result > monitor_latency))
3069 result = monitor_latency;
3071 if (result != (pa_usec_t) -1)
3072 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3074 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3075 /* Only cache if properly initialized */
3076 s->thread_info.requested_latency = result;
3077 s->thread_info.requested_latency_valid = true;
3083 /* Called from main thread */
3084 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3087 pa_sink_assert_ref(s);
3088 pa_assert_ctl_context();
3089 pa_assert(PA_SINK_IS_LINKED(s->state));
3091 if (s->state == PA_SINK_SUSPENDED)
3094 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3099 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3100 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3104 pa_sink_assert_ref(s);
3105 pa_sink_assert_io_context(s);
3107 if (max_rewind == s->thread_info.max_rewind)
3110 s->thread_info.max_rewind = max_rewind;
3112 if (PA_SINK_IS_LINKED(s->thread_info.state))
3113 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3114 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3116 if (s->monitor_source)
3117 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3120 /* Called from main thread */
3121 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3122 pa_sink_assert_ref(s);
3123 pa_assert_ctl_context();
3125 if (PA_SINK_IS_LINKED(s->state))
3126 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3128 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3131 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3132 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3135 pa_sink_assert_ref(s);
3136 pa_sink_assert_io_context(s);
3138 if (max_request == s->thread_info.max_request)
3141 s->thread_info.max_request = max_request;
3143 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3146 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3147 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3151 /* Called from main thread */
3152 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3153 pa_sink_assert_ref(s);
3154 pa_assert_ctl_context();
3156 if (PA_SINK_IS_LINKED(s->state))
3157 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3159 pa_sink_set_max_request_within_thread(s, max_request);
3162 /* Called from IO thread */
3163 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3167 pa_sink_assert_ref(s);
3168 pa_sink_assert_io_context(s);
3170 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3171 s->thread_info.requested_latency_valid = false;
3175 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3177 if (s->update_requested_latency)
3178 s->update_requested_latency(s);
3180 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3181 if (i->update_sink_requested_latency)
3182 i->update_sink_requested_latency(i);
3186 /* Called from main thread */
3187 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3188 pa_sink_assert_ref(s);
3189 pa_assert_ctl_context();
3191 /* min_latency == 0: no limit
3192 * min_latency anything else: specified limit
3194 * Similar for max_latency */
3196 if (min_latency < ABSOLUTE_MIN_LATENCY)
3197 min_latency = ABSOLUTE_MIN_LATENCY;
3199 if (max_latency <= 0 ||
3200 max_latency > ABSOLUTE_MAX_LATENCY)
3201 max_latency = ABSOLUTE_MAX_LATENCY;
3203 pa_assert(min_latency <= max_latency);
3205 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3206 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3207 max_latency == ABSOLUTE_MAX_LATENCY) ||
3208 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3210 if (PA_SINK_IS_LINKED(s->state)) {
3216 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3218 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3221 /* Called from main thread */
3222 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3223 pa_sink_assert_ref(s);
3224 pa_assert_ctl_context();
3225 pa_assert(min_latency);
3226 pa_assert(max_latency);
3228 if (PA_SINK_IS_LINKED(s->state)) {
3229 pa_usec_t r[2] = { 0, 0 };
3231 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3233 *min_latency = r[0];
3234 *max_latency = r[1];
3236 *min_latency = s->thread_info.min_latency;
3237 *max_latency = s->thread_info.max_latency;
3241 /* Called from IO thread */
3242 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3243 pa_sink_assert_ref(s);
3244 pa_sink_assert_io_context(s);
3246 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3247 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3248 pa_assert(min_latency <= max_latency);
3250 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3251 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3252 max_latency == ABSOLUTE_MAX_LATENCY) ||
3253 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3255 if (s->thread_info.min_latency == min_latency &&
3256 s->thread_info.max_latency == max_latency)
3259 s->thread_info.min_latency = min_latency;
3260 s->thread_info.max_latency = max_latency;
3262 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3266 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3267 if (i->update_sink_latency_range)
3268 i->update_sink_latency_range(i);
3271 pa_sink_invalidate_requested_latency(s, false);
3273 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3276 /* Called from main thread */
3277 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3278 pa_sink_assert_ref(s);
3279 pa_assert_ctl_context();
3281 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3282 pa_assert(latency == 0);
3286 if (latency < ABSOLUTE_MIN_LATENCY)
3287 latency = ABSOLUTE_MIN_LATENCY;
3289 if (latency > ABSOLUTE_MAX_LATENCY)
3290 latency = ABSOLUTE_MAX_LATENCY;
3292 if (PA_SINK_IS_LINKED(s->state))
3293 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3295 s->thread_info.fixed_latency = latency;
3297 pa_source_set_fixed_latency(s->monitor_source, latency);
3300 /* Called from main thread */
3301 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3304 pa_sink_assert_ref(s);
3305 pa_assert_ctl_context();
3307 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3310 if (PA_SINK_IS_LINKED(s->state))
3311 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3313 latency = s->thread_info.fixed_latency;
3318 /* Called from IO thread */
3319 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3320 pa_sink_assert_ref(s);
3321 pa_sink_assert_io_context(s);
3323 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3324 pa_assert(latency == 0);
3325 s->thread_info.fixed_latency = 0;
3327 if (s->monitor_source)
3328 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3333 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3334 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3336 if (s->thread_info.fixed_latency == latency)
3339 s->thread_info.fixed_latency = latency;
3341 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3345 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3346 if (i->update_sink_fixed_latency)
3347 i->update_sink_fixed_latency(i);
3350 pa_sink_invalidate_requested_latency(s, false);
3352 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3355 /* Called from main context */
3356 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3357 pa_sink_assert_ref(s);
3359 s->port_latency_offset = offset;
3361 if (PA_SINK_IS_LINKED(s->state))
3362 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3364 s->thread_info.port_latency_offset = offset;
3366 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3369 /* Called from main context */
3370 size_t pa_sink_get_max_rewind(pa_sink *s) {
3372 pa_assert_ctl_context();
3373 pa_sink_assert_ref(s);
3375 if (!PA_SINK_IS_LINKED(s->state))
3376 return s->thread_info.max_rewind;
3378 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3383 /* Called from main context */
3384 size_t pa_sink_get_max_request(pa_sink *s) {
3386 pa_sink_assert_ref(s);
3387 pa_assert_ctl_context();
3389 if (!PA_SINK_IS_LINKED(s->state))
3390 return s->thread_info.max_request;
3392 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3397 /* Called from main context */
3398 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3399 pa_device_port *port;
3401 pa_sink_assert_ref(s);
3402 pa_assert_ctl_context();
3405 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3406 return -PA_ERR_NOTIMPLEMENTED;
3410 return -PA_ERR_NOENTITY;
3412 if (!(port = pa_hashmap_get(s->ports, name)))
3413 return -PA_ERR_NOENTITY;
3415 if (s->active_port == port) {
3416 s->save_port = s->save_port || save;
3420 if (s->set_port(s, port) < 0)
3421 return -PA_ERR_NOENTITY;
3423 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3425 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3427 s->active_port = port;
3428 s->save_port = save;
3430 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3432 /* The active port affects the default sink selection. */
3433 pa_core_update_default_sink(s->core);
3435 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3440 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3441 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3445 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3448 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3450 if (pa_streq(ff, "microphone"))
3451 t = "audio-input-microphone";
3452 else if (pa_streq(ff, "webcam"))
3454 else if (pa_streq(ff, "computer"))
3456 else if (pa_streq(ff, "handset"))
3458 else if (pa_streq(ff, "portable"))
3459 t = "multimedia-player";
3460 else if (pa_streq(ff, "tv"))
3461 t = "video-display";
3464 * The following icons are not part of the icon naming spec,
3465 * because Rodney Dawes sucks as the maintainer of that spec.
3467 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3469 else if (pa_streq(ff, "headset"))
3470 t = "audio-headset";
3471 else if (pa_streq(ff, "headphone"))
3472 t = "audio-headphones";
3473 else if (pa_streq(ff, "speaker"))
3474 t = "audio-speakers";
3475 else if (pa_streq(ff, "hands-free"))
3476 t = "audio-handsfree";
3480 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3481 if (pa_streq(c, "modem"))
3488 t = "audio-input-microphone";
3491 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3492 if (strstr(profile, "analog"))
3494 else if (strstr(profile, "iec958"))
3496 else if (strstr(profile, "hdmi"))
3500 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3502 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3507 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3508 const char *s, *d = NULL, *k;
3511 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3515 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3519 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3520 if (pa_streq(s, "internal"))
3521 d = _("Built-in Audio");
3524 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3525 if (pa_streq(s, "modem"))
3529 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3534 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3537 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3539 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3544 bool pa_device_init_intended_roles(pa_proplist *p) {
3548 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3551 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3552 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3553 || pa_streq(s, "headset")) {
3554 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3561 unsigned pa_device_init_priority(pa_proplist *p) {
3563 unsigned priority = 0;
3567 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3569 if (pa_streq(s, "sound"))
3571 else if (!pa_streq(s, "modem"))
3575 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3577 if (pa_streq(s, "headphone"))
3579 else if (pa_streq(s, "hifi"))
3581 else if (pa_streq(s, "speaker"))
3583 else if (pa_streq(s, "portable"))
3587 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3589 if (pa_streq(s, "bluetooth"))
3591 else if (pa_streq(s, "usb"))
3593 else if (pa_streq(s, "pci"))
3597 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3599 if (pa_startswith(s, "analog-"))
3601 else if (pa_startswith(s, "iec958-"))
3608 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3610 /* Called from the IO thread. */
3611 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3612 pa_sink_volume_change *c;
3613 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3614 c = pa_xnew(pa_sink_volume_change, 1);
3616 PA_LLIST_INIT(pa_sink_volume_change, c);
3618 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3622 /* Called from the IO thread. */
3623 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3625 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3629 /* Called from the IO thread. */
3630 void pa_sink_volume_change_push(pa_sink *s) {
3631 pa_sink_volume_change *c = NULL;
3632 pa_sink_volume_change *nc = NULL;
3633 pa_sink_volume_change *pc = NULL;
3634 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3636 const char *direction = NULL;
3639 nc = pa_sink_volume_change_new(s);
3641 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3642 * Adding one more volume for HW would get us rid of this, but I am trying
3643 * to survive with the ones we already have. */
3644 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3646 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3647 pa_log_debug("Volume not changing");
3648 pa_sink_volume_change_free(nc);
3652 nc->at = pa_sink_get_latency_within_thread(s, false);
3653 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3655 if (s->thread_info.volume_changes_tail) {
3656 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3657 /* If volume is going up let's do it a bit late. If it is going
3658 * down let's do it a bit early. */
3659 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3660 if (nc->at + safety_margin > c->at) {
3661 nc->at += safety_margin;
3666 else if (nc->at - safety_margin > c->at) {
3667 nc->at -= safety_margin;
3675 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3676 nc->at += safety_margin;
3679 nc->at -= safety_margin;
3682 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3685 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3688 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3690 /* We can ignore volume events that came earlier but should happen later than this. */
3691 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3692 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3693 pa_sink_volume_change_free(c);
3696 s->thread_info.volume_changes_tail = nc;
3699 /* Called from the IO thread. */
3700 static void pa_sink_volume_change_flush(pa_sink *s) {
3701 pa_sink_volume_change *c = s->thread_info.volume_changes;
3703 s->thread_info.volume_changes = NULL;
3704 s->thread_info.volume_changes_tail = NULL;
3706 pa_sink_volume_change *next = c->next;
3707 pa_sink_volume_change_free(c);
3712 /* Called from the IO thread. */
3713 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3719 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3725 pa_assert(s->write_volume);
3727 now = pa_rtclock_now();
3729 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3730 pa_sink_volume_change *c = s->thread_info.volume_changes;
3731 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3732 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3733 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3735 s->thread_info.current_hw_volume = c->hw_volume;
3736 pa_sink_volume_change_free(c);
3742 if (s->thread_info.volume_changes) {
3744 *usec_to_next = s->thread_info.volume_changes->at - now;
3745 if (pa_log_ratelimit(PA_LOG_DEBUG))
3746 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3751 s->thread_info.volume_changes_tail = NULL;
3756 /* Called from the IO thread. */
3757 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3758 /* All the queued volume events later than current latency are shifted to happen earlier. */
3759 pa_sink_volume_change *c;
3760 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3761 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3762 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3764 pa_log_debug("latency = %lld", (long long) limit);
3765 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3767 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3768 pa_usec_t modified_limit = limit;
3769 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3770 modified_limit -= s->thread_info.volume_change_safety_margin;
3772 modified_limit += s->thread_info.volume_change_safety_margin;
3773 if (c->at > modified_limit) {
3775 if (c->at < modified_limit)
3776 c->at = modified_limit;
3778 prev_vol = pa_cvolume_avg(&c->hw_volume);
3780 pa_sink_volume_change_apply(s, NULL);
3783 /* Called from the main thread */
3784 /* Gets the list of formats supported by the sink. The members and idxset must
3785 * be freed by the caller. */
3786 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3791 if (s->get_formats) {
3792 /* Sink supports format query, all is good */
3793 ret = s->get_formats(s);
3795 /* Sink doesn't support format query, so assume it does PCM */
3796 pa_format_info *f = pa_format_info_new();
3797 f->encoding = PA_ENCODING_PCM;
3799 ret = pa_idxset_new(NULL, NULL);
3800 pa_idxset_put(ret, f, NULL);
3806 /* Called from the main thread */
3807 /* Allows an external source to set what formats a sink supports if the sink
3808 * permits this. The function makes a copy of the formats on success. */
3809 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3814 /* Sink supports setting formats -- let's give it a shot */
3815 return s->set_formats(s, formats);
3817 /* Sink doesn't support setting this -- bail out */
3821 /* Called from the main thread */
3822 /* Checks if the sink can accept this format */
3823 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3824 pa_idxset *formats = NULL;
3830 formats = pa_sink_get_formats(s);
3833 pa_format_info *finfo_device;
3836 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3837 if (pa_format_info_is_compatible(finfo_device, f)) {
3843 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3849 /* Called from the main thread */
3850 /* Calculates the intersection between formats supported by the sink and
3851 * in_formats, and returns these, in the order of the sink's formats. */
3852 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3853 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3854 pa_format_info *f_sink, *f_in;
3859 if (!in_formats || pa_idxset_isempty(in_formats))
3862 sink_formats = pa_sink_get_formats(s);
3864 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3865 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3866 if (pa_format_info_is_compatible(f_sink, f_in))
3867 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3873 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3878 /* Called from the main thread */
3879 void pa_sink_set_sample_format(pa_sink *s, pa_sample_format_t format) {
3880 pa_sample_format_t old_format;
3883 pa_assert(pa_sample_format_valid(format));
3885 old_format = s->sample_spec.format;
3886 if (old_format == format)
3889 pa_log_info("%s: format: %s -> %s",
3890 s->name, pa_sample_format_to_string(old_format), pa_sample_format_to_string(format));
3892 s->sample_spec.format = format;
3894 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3897 /* Called from the main thread */
3898 void pa_sink_set_sample_rate(pa_sink *s, uint32_t rate) {
3902 pa_assert(pa_sample_rate_valid(rate));
3904 old_rate = s->sample_spec.rate;
3905 if (old_rate == rate)
3908 pa_log_info("%s: rate: %u -> %u", s->name, old_rate, rate);
3910 s->sample_spec.rate = rate;
3912 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3915 /* Called from the main thread. */
3916 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3917 pa_cvolume old_volume;
3918 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3919 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3924 old_volume = s->reference_volume;
3926 if (pa_cvolume_equal(volume, &old_volume))
3929 s->reference_volume = *volume;
3930 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3931 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3932 s->flags & PA_SINK_DECIBEL_VOLUME),
3933 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3934 s->flags & PA_SINK_DECIBEL_VOLUME));
3936 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3937 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);
3940 void pa_sink_move_streams_to_default_sink(pa_core *core, pa_sink *old_sink) {
3943 bool old_sink_is_unavailable = false;
3946 pa_assert(old_sink);
3948 if (core->default_sink == NULL || core->default_sink->unlink_requested)
3951 if (old_sink == core->default_sink)
3954 if (old_sink->active_port && old_sink->active_port->available == PA_AVAILABLE_NO)
3955 old_sink_is_unavailable = true;
3957 PA_IDXSET_FOREACH(i, old_sink->inputs, idx) {
3958 if (!PA_SINK_INPUT_IS_LINKED(i->state))
3964 if (pa_safe_streq(old_sink->name, i->preferred_sink) && !old_sink_is_unavailable)
3967 pa_log_info("The sink input %u \"%s\" is moving to %s due to change of the default sink.",
3968 i->index, pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_APPLICATION_NAME)), core->default_sink->name);
3969 pa_sink_input_move_to(i, core->default_sink, false);