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 /* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
728 * because module-switch-on-connect needs to know the old default sink */
729 pa_core_update_default_sink(s->core);
732 /* Called from main context */
733 void pa_sink_unlink(pa_sink* s) {
735 pa_sink_input *i, PA_UNUSED *j = NULL;
737 pa_sink_assert_ref(s);
738 pa_assert_ctl_context();
740 /* Please note that pa_sink_unlink() does more than simply
741 * reversing pa_sink_put(). It also undoes the registrations
742 * already done in pa_sink_new()! */
744 if (s->unlink_requested)
747 s->unlink_requested = true;
749 linked = PA_SINK_IS_LINKED(s->state);
752 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
754 if (s->state != PA_SINK_UNLINKED)
755 pa_namereg_unregister(s->core, s->name);
756 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
758 pa_core_update_default_sink(s->core);
761 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
763 while ((i = pa_idxset_first(s->inputs, NULL))) {
765 pa_sink_input_kill(i);
770 sink_set_state(s, PA_SINK_UNLINKED, 0);
772 s->state = PA_SINK_UNLINKED;
776 if (s->monitor_source)
777 pa_source_unlink(s->monitor_source);
780 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
781 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
785 /* Called from main context */
786 static void sink_free(pa_object *o) {
787 pa_sink *s = PA_SINK(o);
790 pa_assert_ctl_context();
791 pa_assert(pa_sink_refcnt(s) == 0);
792 pa_assert(!PA_SINK_IS_LINKED(s->state));
794 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
796 pa_sink_volume_change_flush(s);
798 if (s->monitor_source) {
799 pa_source_unref(s->monitor_source);
800 s->monitor_source = NULL;
803 pa_idxset_free(s->inputs, NULL);
804 pa_hashmap_free(s->thread_info.inputs);
806 if (s->silence.memblock)
807 pa_memblock_unref(s->silence.memblock);
813 pa_proplist_free(s->proplist);
816 pa_hashmap_free(s->ports);
821 /* Called from main context, and not while the IO thread is active, please */
822 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
823 pa_sink_assert_ref(s);
824 pa_assert_ctl_context();
828 if (s->monitor_source)
829 pa_source_set_asyncmsgq(s->monitor_source, q);
832 /* Called from main context, and not while the IO thread is active, please */
833 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
834 pa_sink_flags_t old_flags;
835 pa_sink_input *input;
838 pa_sink_assert_ref(s);
839 pa_assert_ctl_context();
841 /* For now, allow only a minimal set of flags to be changed. */
842 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
844 old_flags = s->flags;
845 s->flags = (s->flags & ~mask) | (value & mask);
847 if (s->flags == old_flags)
850 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
851 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
853 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
854 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
855 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
857 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
858 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
860 if (s->monitor_source)
861 pa_source_update_flags(s->monitor_source,
862 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
863 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
864 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
865 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
867 PA_IDXSET_FOREACH(input, s->inputs, idx) {
868 if (input->origin_sink)
869 pa_sink_update_flags(input->origin_sink, mask, value);
873 /* Called from IO context, or before _put() from main context */
874 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
875 pa_sink_assert_ref(s);
876 pa_sink_assert_io_context(s);
878 s->thread_info.rtpoll = p;
880 if (s->monitor_source)
881 pa_source_set_rtpoll(s->monitor_source, p);
884 /* Called from main context */
885 int pa_sink_update_status(pa_sink*s) {
886 pa_sink_assert_ref(s);
887 pa_assert_ctl_context();
888 pa_assert(PA_SINK_IS_LINKED(s->state));
890 if (s->state == PA_SINK_SUSPENDED)
893 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
896 /* Called from main context */
897 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
898 pa_suspend_cause_t merged_cause;
900 pa_sink_assert_ref(s);
901 pa_assert_ctl_context();
902 pa_assert(PA_SINK_IS_LINKED(s->state));
903 pa_assert(cause != 0);
906 merged_cause = s->suspend_cause | cause;
908 merged_cause = s->suspend_cause & ~cause;
911 return sink_set_state(s, PA_SINK_SUSPENDED, merged_cause);
913 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
916 /* Called from main context */
917 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
918 pa_sink_input *i, *n;
921 pa_sink_assert_ref(s);
922 pa_assert_ctl_context();
923 pa_assert(PA_SINK_IS_LINKED(s->state));
928 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
929 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
931 pa_sink_input_ref(i);
933 if (pa_sink_input_start_move(i) >= 0)
936 pa_sink_input_unref(i);
942 /* Called from main context */
943 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
946 pa_sink_assert_ref(s);
947 pa_assert_ctl_context();
948 pa_assert(PA_SINK_IS_LINKED(s->state));
951 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
952 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
953 if (pa_sink_input_finish_move(i, s, save) < 0)
954 pa_sink_input_fail_move(i);
957 pa_sink_input_unref(i);
960 pa_queue_free(q, NULL);
963 /* Called from main context */
964 void pa_sink_move_all_fail(pa_queue *q) {
967 pa_assert_ctl_context();
970 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
971 pa_sink_input_fail_move(i);
972 pa_sink_input_unref(i);
975 pa_queue_free(q, NULL);
978 /* Called from IO thread context */
979 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
984 pa_sink_assert_ref(s);
985 pa_sink_assert_io_context(s);
987 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
988 size_t uf = i->thread_info.underrun_for_sink;
990 /* Propagate down the filter tree */
991 if (i->origin_sink) {
992 size_t filter_result, left_to_play_origin;
994 /* The recursive call works in the origin sink domain ... */
995 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
997 /* .. and returns the time to sleep before waking up. We need the
998 * underrun duration for comparisons, so we undo the subtraction on
999 * the return value... */
1000 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
1002 /* ... and convert it back to the master sink domain */
1003 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
1005 /* Remember the longest underrun so far */
1006 if (filter_result > result)
1007 result = filter_result;
1011 /* No underrun here, move on */
1013 } else if (uf >= left_to_play) {
1014 /* The sink has possibly consumed all the data the sink input provided */
1015 pa_sink_input_process_underrun(i);
1016 } else if (uf > result) {
1017 /* Remember the longest underrun so far */
1023 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
1024 (long) result, (long) left_to_play - result);
1025 return left_to_play - result;
1028 /* Called from IO thread context */
1029 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1033 pa_sink_assert_ref(s);
1034 pa_sink_assert_io_context(s);
1035 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1037 /* If nobody requested this and this is actually no real rewind
1038 * then we can short cut this. Please note that this means that
1039 * not all rewind requests triggered upstream will always be
1040 * translated in actual requests! */
1041 if (!s->thread_info.rewind_requested && nbytes <= 0)
1044 s->thread_info.rewind_nbytes = 0;
1045 s->thread_info.rewind_requested = false;
1048 pa_log_debug("Processing rewind...");
1049 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1050 pa_sink_volume_change_rewind(s, nbytes);
1053 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1054 pa_sink_input_assert_ref(i);
1055 pa_sink_input_process_rewind(i, nbytes);
1059 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1060 pa_source_process_rewind(s->monitor_source, nbytes);
1064 /* Called from IO thread context */
1065 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1069 size_t mixlength = *length;
1071 pa_sink_assert_ref(s);
1072 pa_sink_assert_io_context(s);
1075 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1076 pa_sink_input_assert_ref(i);
1078 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1080 if (mixlength == 0 || info->chunk.length < mixlength)
1081 mixlength = info->chunk.length;
1083 if (pa_memblock_is_silence(info->chunk.memblock)) {
1084 pa_memblock_unref(info->chunk.memblock);
1088 info->userdata = pa_sink_input_ref(i);
1090 pa_assert(info->chunk.memblock);
1091 pa_assert(info->chunk.length > 0);
1099 *length = mixlength;
1104 /* Called from IO thread context */
1105 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1109 unsigned n_unreffed = 0;
1111 pa_sink_assert_ref(s);
1112 pa_sink_assert_io_context(s);
1114 pa_assert(result->memblock);
1115 pa_assert(result->length > 0);
1117 /* We optimize for the case where the order of the inputs has not changed */
1119 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1121 pa_mix_info* m = NULL;
1123 pa_sink_input_assert_ref(i);
1125 /* Let's try to find the matching entry info the pa_mix_info array */
1126 for (j = 0; j < n; j ++) {
1128 if (info[p].userdata == i) {
1138 /* Drop read data */
1139 pa_sink_input_drop(i, result->length);
1141 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1143 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1144 void *ostate = NULL;
1145 pa_source_output *o;
1148 if (m && m->chunk.memblock) {
1150 pa_memblock_ref(c.memblock);
1151 pa_assert(result->length <= c.length);
1152 c.length = result->length;
1154 pa_memchunk_make_writable(&c, 0);
1155 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1158 pa_memblock_ref(c.memblock);
1159 pa_assert(result->length <= c.length);
1160 c.length = result->length;
1163 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1164 pa_source_output_assert_ref(o);
1165 pa_assert(o->direct_on_input == i);
1166 pa_source_post_direct(s->monitor_source, o, &c);
1169 pa_memblock_unref(c.memblock);
1174 if (m->chunk.memblock) {
1175 pa_memblock_unref(m->chunk.memblock);
1176 pa_memchunk_reset(&m->chunk);
1179 pa_sink_input_unref(m->userdata);
1186 /* Now drop references to entries that are included in the
1187 * pa_mix_info array but don't exist anymore */
1189 if (n_unreffed < n) {
1190 for (; n > 0; info++, n--) {
1192 pa_sink_input_unref(info->userdata);
1193 if (info->chunk.memblock)
1194 pa_memblock_unref(info->chunk.memblock);
1198 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1199 pa_source_post(s->monitor_source, result);
1202 /* Called from IO thread context */
1203 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1204 pa_mix_info info[MAX_MIX_CHANNELS];
1206 size_t block_size_max;
1208 pa_sink_assert_ref(s);
1209 pa_sink_assert_io_context(s);
1210 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1211 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1214 pa_assert(!s->thread_info.rewind_requested);
1215 pa_assert(s->thread_info.rewind_nbytes == 0);
1217 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1218 result->memblock = pa_memblock_ref(s->silence.memblock);
1219 result->index = s->silence.index;
1220 result->length = PA_MIN(s->silence.length, length);
1227 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1229 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1230 if (length > block_size_max)
1231 length = pa_frame_align(block_size_max, &s->sample_spec);
1233 pa_assert(length > 0);
1235 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1239 *result = s->silence;
1240 pa_memblock_ref(result->memblock);
1242 if (result->length > length)
1243 result->length = length;
1245 } else if (n == 1) {
1248 *result = info[0].chunk;
1249 pa_memblock_ref(result->memblock);
1251 if (result->length > length)
1252 result->length = length;
1254 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1256 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1257 pa_memblock_unref(result->memblock);
1258 pa_silence_memchunk_get(&s->core->silence_cache,
1263 } else if (!pa_cvolume_is_norm(&volume)) {
1264 pa_memchunk_make_writable(result, 0);
1265 pa_volume_memchunk(result, &s->sample_spec, &volume);
1269 result->memblock = pa_memblock_new(s->core->mempool, length);
1271 ptr = pa_memblock_acquire(result->memblock);
1272 result->length = pa_mix(info, n,
1275 &s->thread_info.soft_volume,
1276 s->thread_info.soft_muted);
1277 pa_memblock_release(result->memblock);
1282 inputs_drop(s, info, n, result);
1287 /* Called from IO thread context */
1288 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1289 pa_mix_info info[MAX_MIX_CHANNELS];
1291 size_t length, block_size_max;
1293 pa_sink_assert_ref(s);
1294 pa_sink_assert_io_context(s);
1295 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1297 pa_assert(target->memblock);
1298 pa_assert(target->length > 0);
1299 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1301 pa_assert(!s->thread_info.rewind_requested);
1302 pa_assert(s->thread_info.rewind_nbytes == 0);
1304 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1305 pa_silence_memchunk(target, &s->sample_spec);
1311 length = target->length;
1312 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1313 if (length > block_size_max)
1314 length = pa_frame_align(block_size_max, &s->sample_spec);
1316 pa_assert(length > 0);
1318 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1321 if (target->length > length)
1322 target->length = length;
1324 pa_silence_memchunk(target, &s->sample_spec);
1325 } else if (n == 1) {
1328 if (target->length > length)
1329 target->length = length;
1331 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1333 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1334 pa_silence_memchunk(target, &s->sample_spec);
1338 vchunk = info[0].chunk;
1339 pa_memblock_ref(vchunk.memblock);
1341 if (vchunk.length > length)
1342 vchunk.length = length;
1344 if (!pa_cvolume_is_norm(&volume)) {
1345 pa_memchunk_make_writable(&vchunk, 0);
1346 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1349 pa_memchunk_memcpy(target, &vchunk);
1350 pa_memblock_unref(vchunk.memblock);
1356 ptr = pa_memblock_acquire(target->memblock);
1358 target->length = pa_mix(info, n,
1359 (uint8_t*) ptr + target->index, length,
1361 &s->thread_info.soft_volume,
1362 s->thread_info.soft_muted);
1364 pa_memblock_release(target->memblock);
1367 inputs_drop(s, info, n, target);
1372 /* Called from IO thread context */
1373 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1377 pa_sink_assert_ref(s);
1378 pa_sink_assert_io_context(s);
1379 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1381 pa_assert(target->memblock);
1382 pa_assert(target->length > 0);
1383 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1385 pa_assert(!s->thread_info.rewind_requested);
1386 pa_assert(s->thread_info.rewind_nbytes == 0);
1388 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1389 pa_silence_memchunk(target, &s->sample_spec);
1402 pa_sink_render_into(s, &chunk);
1411 /* Called from IO thread context */
1412 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1413 pa_sink_assert_ref(s);
1414 pa_sink_assert_io_context(s);
1415 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1416 pa_assert(length > 0);
1417 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1420 pa_assert(!s->thread_info.rewind_requested);
1421 pa_assert(s->thread_info.rewind_nbytes == 0);
1425 pa_sink_render(s, length, result);
1427 if (result->length < length) {
1430 pa_memchunk_make_writable(result, length);
1432 chunk.memblock = result->memblock;
1433 chunk.index = result->index + result->length;
1434 chunk.length = length - result->length;
1436 pa_sink_render_into_full(s, &chunk);
1438 result->length = length;
1444 /* Called from main thread */
1445 void pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1446 pa_sample_spec desired_spec;
1447 uint32_t default_rate = s->default_sample_rate;
1448 uint32_t alternate_rate = s->alternate_sample_rate;
1451 bool default_rate_is_usable = false;
1452 bool alternate_rate_is_usable = false;
1453 bool avoid_resampling = s->avoid_resampling;
1455 if (pa_sample_spec_equal(spec, &s->sample_spec))
1458 if (!s->reconfigure)
1461 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1462 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1466 if (PA_SINK_IS_RUNNING(s->state)) {
1467 pa_log_info("Cannot update sample spec, SINK_IS_RUNNING, will keep using %s and %u Hz",
1468 pa_sample_format_to_string(s->sample_spec.format), s->sample_spec.rate);
1472 if (s->monitor_source) {
1473 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1474 pa_log_info("Cannot update sample spec, monitor source is RUNNING");
1479 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1482 desired_spec = s->sample_spec;
1485 /* We have to try to use the sink input format and rate */
1486 desired_spec.format = spec->format;
1487 desired_spec.rate = spec->rate;
1489 } else if (avoid_resampling) {
1490 /* We just try to set the sink input's sample rate if it's not too low */
1491 if (spec->rate >= default_rate || spec->rate >= alternate_rate)
1492 desired_spec.rate = spec->rate;
1493 desired_spec.format = spec->format;
1495 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1496 /* We can directly try to use this rate */
1497 desired_spec.rate = spec->rate;
1501 if (desired_spec.rate != spec->rate) {
1502 /* See if we can pick a rate that results in less resampling effort */
1503 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1504 default_rate_is_usable = true;
1505 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1506 default_rate_is_usable = true;
1507 if (alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1508 alternate_rate_is_usable = true;
1509 if (alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1510 alternate_rate_is_usable = true;
1512 if (alternate_rate_is_usable && !default_rate_is_usable)
1513 desired_spec.rate = alternate_rate;
1515 desired_spec.rate = default_rate;
1518 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1521 if (!passthrough && pa_sink_used_by(s) > 0)
1524 pa_log_debug("Suspending sink %s due to changing format, desired format = %s rate = %u",
1525 s->name, pa_sample_format_to_string(desired_spec.format), desired_spec.rate);
1526 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1528 s->reconfigure(s, &desired_spec, passthrough);
1530 /* update monitor source as well */
1531 if (s->monitor_source && !passthrough)
1532 pa_source_reconfigure(s->monitor_source, &s->sample_spec, false);
1533 pa_log_info("Reconfigured successfully");
1535 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1536 if (i->state == PA_SINK_INPUT_CORKED)
1537 pa_sink_input_update_resampler(i);
1540 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1543 /* Called from main thread */
1544 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1547 pa_sink_assert_ref(s);
1548 pa_assert_ctl_context();
1549 pa_assert(PA_SINK_IS_LINKED(s->state));
1551 /* The returned value is supposed to be in the time domain of the sound card! */
1553 if (s->state == PA_SINK_SUSPENDED)
1556 if (!(s->flags & PA_SINK_LATENCY))
1559 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1561 /* the return value is unsigned, so check that the offset can be added to usec without
1563 if (-s->port_latency_offset <= usec)
1564 usec += s->port_latency_offset;
1568 return (pa_usec_t)usec;
1571 /* Called from IO thread */
1572 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1576 pa_sink_assert_ref(s);
1577 pa_sink_assert_io_context(s);
1578 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1580 /* The returned value is supposed to be in the time domain of the sound card! */
1582 if (s->thread_info.state == PA_SINK_SUSPENDED)
1585 if (!(s->flags & PA_SINK_LATENCY))
1588 o = PA_MSGOBJECT(s);
1590 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1592 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1594 /* If allow_negative is false, the call should only return positive values, */
1595 usec += s->thread_info.port_latency_offset;
1596 if (!allow_negative && usec < 0)
1602 /* Called from the main thread (and also from the IO thread while the main
1603 * thread is waiting).
1605 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1606 * set. Instead, flat volume mode is detected by checking whether the root sink
1607 * has the flag set. */
1608 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1609 pa_sink_assert_ref(s);
1611 s = pa_sink_get_master(s);
1614 return (s->flags & PA_SINK_FLAT_VOLUME);
1619 /* Called from the main thread (and also from the IO thread while the main
1620 * thread is waiting). */
1621 pa_sink *pa_sink_get_master(pa_sink *s) {
1622 pa_sink_assert_ref(s);
1624 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1625 if (PA_UNLIKELY(!s->input_to_master))
1628 s = s->input_to_master->sink;
1634 /* Called from main context */
1635 bool pa_sink_is_filter(pa_sink *s) {
1636 pa_sink_assert_ref(s);
1638 return (s->input_to_master != NULL);
1641 /* Called from main context */
1642 bool pa_sink_is_passthrough(pa_sink *s) {
1643 pa_sink_input *alt_i;
1646 pa_sink_assert_ref(s);
1648 /* one and only one PASSTHROUGH input can possibly be connected */
1649 if (pa_idxset_size(s->inputs) == 1) {
1650 alt_i = pa_idxset_first(s->inputs, &idx);
1652 if (pa_sink_input_is_passthrough(alt_i))
1659 /* Called from main context */
1660 void pa_sink_enter_passthrough(pa_sink *s) {
1663 /* The sink implementation is reconfigured for passthrough in
1664 * pa_sink_reconfigure(). This function sets the PA core objects to
1665 * passthrough mode. */
1667 /* disable the monitor in passthrough mode */
1668 if (s->monitor_source) {
1669 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1670 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1673 /* set the volume to NORM */
1674 s->saved_volume = *pa_sink_get_volume(s, true);
1675 s->saved_save_volume = s->save_volume;
1677 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1678 pa_sink_set_volume(s, &volume, true, false);
1680 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1683 /* Called from main context */
1684 void pa_sink_leave_passthrough(pa_sink *s) {
1685 /* Unsuspend monitor */
1686 if (s->monitor_source) {
1687 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1688 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1691 /* Restore sink volume to what it was before we entered passthrough mode */
1692 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1694 pa_cvolume_init(&s->saved_volume);
1695 s->saved_save_volume = false;
1699 /* Called from main context. */
1700 static void compute_reference_ratio(pa_sink_input *i) {
1702 pa_cvolume remapped;
1706 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1709 * Calculates the reference ratio from the sink's reference
1710 * volume. This basically calculates:
1712 * i->reference_ratio = i->volume / i->sink->reference_volume
1715 remapped = i->sink->reference_volume;
1716 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1718 ratio = i->reference_ratio;
1720 for (c = 0; c < i->sample_spec.channels; c++) {
1722 /* We don't update when the sink volume is 0 anyway */
1723 if (remapped.values[c] <= PA_VOLUME_MUTED)
1726 /* Don't update the reference ratio unless necessary */
1727 if (pa_sw_volume_multiply(
1729 remapped.values[c]) == i->volume.values[c])
1732 ratio.values[c] = pa_sw_volume_divide(
1733 i->volume.values[c],
1734 remapped.values[c]);
1737 pa_sink_input_set_reference_ratio(i, &ratio);
1740 /* Called from main context. Only called for the root sink in volume sharing
1741 * cases, except for internal recursive calls. */
1742 static void compute_reference_ratios(pa_sink *s) {
1746 pa_sink_assert_ref(s);
1747 pa_assert_ctl_context();
1748 pa_assert(PA_SINK_IS_LINKED(s->state));
1749 pa_assert(pa_sink_flat_volume_enabled(s));
1751 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1752 compute_reference_ratio(i);
1754 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1755 && PA_SINK_IS_LINKED(i->origin_sink->state))
1756 compute_reference_ratios(i->origin_sink);
1760 /* Called from main context. Only called for the root sink in volume sharing
1761 * cases, except for internal recursive calls. */
1762 static void compute_real_ratios(pa_sink *s) {
1766 pa_sink_assert_ref(s);
1767 pa_assert_ctl_context();
1768 pa_assert(PA_SINK_IS_LINKED(s->state));
1769 pa_assert(pa_sink_flat_volume_enabled(s));
1771 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1773 pa_cvolume remapped;
1775 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1776 /* The origin sink uses volume sharing, so this input's real ratio
1777 * is handled as a special case - the real ratio must be 0 dB, and
1778 * as a result i->soft_volume must equal i->volume_factor. */
1779 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1780 i->soft_volume = i->volume_factor;
1782 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1783 compute_real_ratios(i->origin_sink);
1789 * This basically calculates:
1791 * i->real_ratio := i->volume / s->real_volume
1792 * i->soft_volume := i->real_ratio * i->volume_factor
1795 remapped = s->real_volume;
1796 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1798 i->real_ratio.channels = i->sample_spec.channels;
1799 i->soft_volume.channels = i->sample_spec.channels;
1801 for (c = 0; c < i->sample_spec.channels; c++) {
1803 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1804 /* We leave i->real_ratio untouched */
1805 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1809 /* Don't lose accuracy unless necessary */
1810 if (pa_sw_volume_multiply(
1811 i->real_ratio.values[c],
1812 remapped.values[c]) != i->volume.values[c])
1814 i->real_ratio.values[c] = pa_sw_volume_divide(
1815 i->volume.values[c],
1816 remapped.values[c]);
1818 i->soft_volume.values[c] = pa_sw_volume_multiply(
1819 i->real_ratio.values[c],
1820 i->volume_factor.values[c]);
1823 /* We don't copy the soft_volume to the thread_info data
1824 * here. That must be done by the caller */
1828 static pa_cvolume *cvolume_remap_minimal_impact(
1830 const pa_cvolume *template,
1831 const pa_channel_map *from,
1832 const pa_channel_map *to) {
1837 pa_assert(template);
1840 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1841 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1843 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1844 * mapping from sink input to sink volumes:
1846 * If template is a possible remapping from v it is used instead
1847 * of remapping anew.
1849 * If the channel maps don't match we set an all-channel volume on
1850 * the sink to ensure that changing a volume on one stream has no
1851 * effect that cannot be compensated for in another stream that
1852 * does not have the same channel map as the sink. */
1854 if (pa_channel_map_equal(from, to))
1858 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1863 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1867 /* Called from main thread. Only called for the root sink in volume sharing
1868 * cases, except for internal recursive calls. */
1869 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1873 pa_sink_assert_ref(s);
1874 pa_assert(max_volume);
1875 pa_assert(channel_map);
1876 pa_assert(pa_sink_flat_volume_enabled(s));
1878 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1879 pa_cvolume remapped;
1881 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1882 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1883 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1885 /* Ignore this input. The origin sink uses volume sharing, so this
1886 * input's volume will be set to be equal to the root sink's real
1887 * volume. Obviously this input's current volume must not then
1888 * affect what the root sink's real volume will be. */
1892 remapped = i->volume;
1893 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1894 pa_cvolume_merge(max_volume, max_volume, &remapped);
1898 /* Called from main thread. Only called for the root sink in volume sharing
1899 * cases, except for internal recursive calls. */
1900 static bool has_inputs(pa_sink *s) {
1904 pa_sink_assert_ref(s);
1906 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1907 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1914 /* Called from main thread. Only called for the root sink in volume sharing
1915 * cases, except for internal recursive calls. */
1916 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1920 pa_sink_assert_ref(s);
1921 pa_assert(new_volume);
1922 pa_assert(channel_map);
1924 s->real_volume = *new_volume;
1925 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1927 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1928 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1929 if (pa_sink_flat_volume_enabled(s)) {
1930 pa_cvolume new_input_volume;
1932 /* Follow the root sink's real volume. */
1933 new_input_volume = *new_volume;
1934 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1935 pa_sink_input_set_volume_direct(i, &new_input_volume);
1936 compute_reference_ratio(i);
1939 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1940 update_real_volume(i->origin_sink, new_volume, channel_map);
1945 /* Called from main thread. Only called for the root sink in shared volume
1947 static void compute_real_volume(pa_sink *s) {
1948 pa_sink_assert_ref(s);
1949 pa_assert_ctl_context();
1950 pa_assert(PA_SINK_IS_LINKED(s->state));
1951 pa_assert(pa_sink_flat_volume_enabled(s));
1952 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1954 /* This determines the maximum volume of all streams and sets
1955 * s->real_volume accordingly. */
1957 if (!has_inputs(s)) {
1958 /* In the special case that we have no sink inputs we leave the
1959 * volume unmodified. */
1960 update_real_volume(s, &s->reference_volume, &s->channel_map);
1964 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1966 /* First let's determine the new maximum volume of all inputs
1967 * connected to this sink */
1968 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1969 update_real_volume(s, &s->real_volume, &s->channel_map);
1971 /* Then, let's update the real ratios/soft volumes of all inputs
1972 * connected to this sink */
1973 compute_real_ratios(s);
1976 /* Called from main thread. Only called for the root sink in shared volume
1977 * cases, except for internal recursive calls. */
1978 static void propagate_reference_volume(pa_sink *s) {
1982 pa_sink_assert_ref(s);
1983 pa_assert_ctl_context();
1984 pa_assert(PA_SINK_IS_LINKED(s->state));
1985 pa_assert(pa_sink_flat_volume_enabled(s));
1987 /* This is called whenever the sink volume changes that is not
1988 * caused by a sink input volume change. We need to fix up the
1989 * sink input volumes accordingly */
1991 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1992 pa_cvolume new_volume;
1994 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1995 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1996 propagate_reference_volume(i->origin_sink);
1998 /* Since the origin sink uses volume sharing, this input's volume
1999 * needs to be updated to match the root sink's real volume, but
2000 * that will be done later in update_real_volume(). */
2004 /* This basically calculates:
2006 * i->volume := s->reference_volume * i->reference_ratio */
2008 new_volume = s->reference_volume;
2009 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2010 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2011 pa_sink_input_set_volume_direct(i, &new_volume);
2015 /* Called from main thread. Only called for the root sink in volume sharing
2016 * cases, except for internal recursive calls. The return value indicates
2017 * whether any reference volume actually changed. */
2018 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2020 bool reference_volume_changed;
2024 pa_sink_assert_ref(s);
2025 pa_assert(PA_SINK_IS_LINKED(s->state));
2027 pa_assert(channel_map);
2028 pa_assert(pa_cvolume_valid(v));
2031 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2033 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2034 pa_sink_set_reference_volume_direct(s, &volume);
2036 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2038 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2039 /* If the root sink's volume doesn't change, then there can't be any
2040 * changes in the other sinks in the sink tree either.
2042 * It's probably theoretically possible that even if the root sink's
2043 * volume changes slightly, some filter sink doesn't change its volume
2044 * due to rounding errors. If that happens, we still want to propagate
2045 * the changed root sink volume to the sinks connected to the
2046 * intermediate sink that didn't change its volume. This theoretical
2047 * possibility is the reason why we have that !(s->flags &
2048 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2049 * notice even if we returned here false always if
2050 * reference_volume_changed is false. */
2053 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2054 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2055 && PA_SINK_IS_LINKED(i->origin_sink->state))
2056 update_reference_volume(i->origin_sink, v, channel_map, false);
2062 /* Called from main thread */
2063 void pa_sink_set_volume(
2065 const pa_cvolume *volume,
2069 pa_cvolume new_reference_volume;
2072 pa_sink_assert_ref(s);
2073 pa_assert_ctl_context();
2074 pa_assert(PA_SINK_IS_LINKED(s->state));
2075 pa_assert(!volume || pa_cvolume_valid(volume));
2076 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2077 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2079 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2080 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2081 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2082 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2086 /* In case of volume sharing, the volume is set for the root sink first,
2087 * from which it's then propagated to the sharing sinks. */
2088 root_sink = pa_sink_get_master(s);
2090 if (PA_UNLIKELY(!root_sink))
2093 /* As a special exception we accept mono volumes on all sinks --
2094 * even on those with more complex channel maps */
2097 if (pa_cvolume_compatible(volume, &s->sample_spec))
2098 new_reference_volume = *volume;
2100 new_reference_volume = s->reference_volume;
2101 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2104 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2106 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2107 if (pa_sink_flat_volume_enabled(root_sink)) {
2108 /* OK, propagate this volume change back to the inputs */
2109 propagate_reference_volume(root_sink);
2111 /* And now recalculate the real volume */
2112 compute_real_volume(root_sink);
2114 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2118 /* If volume is NULL we synchronize the sink's real and
2119 * reference volumes with the stream volumes. */
2121 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2123 /* Ok, let's determine the new real volume */
2124 compute_real_volume(root_sink);
2126 /* Let's 'push' the reference volume if necessary */
2127 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2128 /* If the sink and its root don't have the same number of channels, we need to remap */
2129 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2130 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2131 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2133 /* Now that the reference volume is updated, we can update the streams'
2134 * reference ratios. */
2135 compute_reference_ratios(root_sink);
2138 if (root_sink->set_volume) {
2139 /* If we have a function set_volume(), then we do not apply a
2140 * soft volume by default. However, set_volume() is free to
2141 * apply one to root_sink->soft_volume */
2143 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2144 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2145 root_sink->set_volume(root_sink);
2148 /* If we have no function set_volume(), then the soft volume
2149 * becomes the real volume */
2150 root_sink->soft_volume = root_sink->real_volume;
2152 /* This tells the sink that soft volume and/or real volume changed */
2154 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2157 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2158 * Only to be called by sink implementor */
2159 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2161 pa_sink_assert_ref(s);
2162 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2164 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2165 pa_sink_assert_io_context(s);
2167 pa_assert_ctl_context();
2170 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2172 s->soft_volume = *volume;
2174 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2175 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2177 s->thread_info.soft_volume = s->soft_volume;
2180 /* Called from the main thread. Only called for the root sink in volume sharing
2181 * cases, except for internal recursive calls. */
2182 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2186 pa_sink_assert_ref(s);
2187 pa_assert(old_real_volume);
2188 pa_assert_ctl_context();
2189 pa_assert(PA_SINK_IS_LINKED(s->state));
2191 /* This is called when the hardware's real volume changes due to
2192 * some external event. We copy the real volume into our
2193 * reference volume and then rebuild the stream volumes based on
2194 * i->real_ratio which should stay fixed. */
2196 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2197 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2200 /* 1. Make the real volume the reference volume */
2201 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2204 if (pa_sink_flat_volume_enabled(s)) {
2206 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2207 pa_cvolume new_volume;
2209 /* 2. Since the sink's reference and real volumes are equal
2210 * now our ratios should be too. */
2211 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2213 /* 3. Recalculate the new stream reference volume based on the
2214 * reference ratio and the sink's reference volume.
2216 * This basically calculates:
2218 * i->volume = s->reference_volume * i->reference_ratio
2220 * This is identical to propagate_reference_volume() */
2221 new_volume = s->reference_volume;
2222 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2223 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2224 pa_sink_input_set_volume_direct(i, &new_volume);
2226 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2227 && PA_SINK_IS_LINKED(i->origin_sink->state))
2228 propagate_real_volume(i->origin_sink, old_real_volume);
2232 /* Something got changed in the hardware. It probably makes sense
2233 * to save changed hw settings given that hw volume changes not
2234 * triggered by PA are almost certainly done by the user. */
2235 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2236 s->save_volume = true;
2239 /* Called from io thread */
2240 void pa_sink_update_volume_and_mute(pa_sink *s) {
2242 pa_sink_assert_io_context(s);
2244 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2247 /* Called from main thread */
2248 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2249 pa_sink_assert_ref(s);
2250 pa_assert_ctl_context();
2251 pa_assert(PA_SINK_IS_LINKED(s->state));
2253 if (s->refresh_volume || force_refresh) {
2254 struct pa_cvolume old_real_volume;
2256 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2258 old_real_volume = s->real_volume;
2260 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2263 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2265 update_real_volume(s, &s->real_volume, &s->channel_map);
2266 propagate_real_volume(s, &old_real_volume);
2269 return &s->reference_volume;
2272 /* Called from main thread. In volume sharing cases, only the root sink may
2274 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2275 pa_cvolume old_real_volume;
2277 pa_sink_assert_ref(s);
2278 pa_assert_ctl_context();
2279 pa_assert(PA_SINK_IS_LINKED(s->state));
2280 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2282 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2284 old_real_volume = s->real_volume;
2285 update_real_volume(s, new_real_volume, &s->channel_map);
2286 propagate_real_volume(s, &old_real_volume);
2289 /* Called from main thread */
2290 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2293 pa_sink_assert_ref(s);
2294 pa_assert_ctl_context();
2296 old_muted = s->muted;
2298 if (mute == old_muted) {
2299 s->save_muted |= save;
2304 s->save_muted = save;
2306 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2307 s->set_mute_in_progress = true;
2309 s->set_mute_in_progress = false;
2312 if (!PA_SINK_IS_LINKED(s->state))
2315 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2316 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2317 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2318 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2321 /* Called from main thread */
2322 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2324 pa_sink_assert_ref(s);
2325 pa_assert_ctl_context();
2326 pa_assert(PA_SINK_IS_LINKED(s->state));
2328 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2331 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2332 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2333 pa_sink_mute_changed(s, mute);
2335 if (s->get_mute(s, &mute) >= 0)
2336 pa_sink_mute_changed(s, mute);
2343 /* Called from main thread */
2344 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2345 pa_sink_assert_ref(s);
2346 pa_assert_ctl_context();
2347 pa_assert(PA_SINK_IS_LINKED(s->state));
2349 if (s->set_mute_in_progress)
2352 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2353 * but we must have this here also, because the save parameter of
2354 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2355 * the mute state when it shouldn't be saved). */
2356 if (new_muted == s->muted)
2359 pa_sink_set_mute(s, new_muted, true);
2362 /* Called from main thread */
2363 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2364 pa_sink_assert_ref(s);
2365 pa_assert_ctl_context();
2368 pa_proplist_update(s->proplist, mode, p);
2370 if (PA_SINK_IS_LINKED(s->state)) {
2371 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2372 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2378 /* Called from main thread */
2379 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2380 void pa_sink_set_description(pa_sink *s, const char *description) {
2382 pa_sink_assert_ref(s);
2383 pa_assert_ctl_context();
2385 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2388 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2390 if (old && description && pa_streq(old, description))
2394 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2396 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2398 if (s->monitor_source) {
2401 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2402 pa_source_set_description(s->monitor_source, n);
2406 if (PA_SINK_IS_LINKED(s->state)) {
2407 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2408 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2412 /* Called from main thread */
2413 unsigned pa_sink_linked_by(pa_sink *s) {
2416 pa_sink_assert_ref(s);
2417 pa_assert_ctl_context();
2418 pa_assert(PA_SINK_IS_LINKED(s->state));
2420 ret = pa_idxset_size(s->inputs);
2422 /* We add in the number of streams connected to us here. Please
2423 * note the asymmetry to pa_sink_used_by()! */
2425 if (s->monitor_source)
2426 ret += pa_source_linked_by(s->monitor_source);
2431 /* Called from main thread */
2432 unsigned pa_sink_used_by(pa_sink *s) {
2435 pa_sink_assert_ref(s);
2436 pa_assert_ctl_context();
2437 pa_assert(PA_SINK_IS_LINKED(s->state));
2439 ret = pa_idxset_size(s->inputs);
2440 pa_assert(ret >= s->n_corked);
2442 /* Streams connected to our monitor source do not matter for
2443 * pa_sink_used_by()!.*/
2445 return ret - s->n_corked;
2448 /* Called from main thread */
2449 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2454 pa_sink_assert_ref(s);
2455 pa_assert_ctl_context();
2457 if (!PA_SINK_IS_LINKED(s->state))
2462 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2463 if (i == ignore_input)
2466 /* We do not assert here. It is perfectly valid for a sink input to
2467 * be in the INIT state (i.e. created, marked done but not yet put)
2468 * and we should not care if it's unlinked as it won't contribute
2469 * towards our busy status.
2471 if (!PA_SINK_INPUT_IS_LINKED(i->state))
2474 if (i->state == PA_SINK_INPUT_CORKED)
2477 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2483 if (s->monitor_source)
2484 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2489 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2491 case PA_SINK_INIT: return "INIT";
2492 case PA_SINK_IDLE: return "IDLE";
2493 case PA_SINK_RUNNING: return "RUNNING";
2494 case PA_SINK_SUSPENDED: return "SUSPENDED";
2495 case PA_SINK_UNLINKED: return "UNLINKED";
2496 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2499 pa_assert_not_reached();
2502 /* Called from the IO thread */
2503 static void sync_input_volumes_within_thread(pa_sink *s) {
2507 pa_sink_assert_ref(s);
2508 pa_sink_assert_io_context(s);
2510 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2511 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2514 i->thread_info.soft_volume = i->soft_volume;
2515 pa_sink_input_request_rewind(i, 0, true, false, false);
2519 /* Called from the IO thread. Only called for the root sink in volume sharing
2520 * cases, except for internal recursive calls. */
2521 static void set_shared_volume_within_thread(pa_sink *s) {
2522 pa_sink_input *i = NULL;
2525 pa_sink_assert_ref(s);
2527 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2529 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2530 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2531 set_shared_volume_within_thread(i->origin_sink);
2535 /* Called from IO thread, except when it is not */
2536 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2537 pa_sink *s = PA_SINK(o);
2538 pa_sink_assert_ref(s);
2540 switch ((pa_sink_message_t) code) {
2542 case PA_SINK_MESSAGE_ADD_INPUT: {
2543 pa_sink_input *i = PA_SINK_INPUT(userdata);
2545 /* If you change anything here, make sure to change the
2546 * sink input handling a few lines down at
2547 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2549 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2551 /* Since the caller sleeps in pa_sink_input_put(), we can
2552 * safely access data outside of thread_info even though
2555 if ((i->thread_info.sync_prev = i->sync_prev)) {
2556 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2557 pa_assert(i->sync_prev->sync_next == i);
2558 i->thread_info.sync_prev->thread_info.sync_next = i;
2561 if ((i->thread_info.sync_next = i->sync_next)) {
2562 pa_assert(i->sink == i->thread_info.sync_next->sink);
2563 pa_assert(i->sync_next->sync_prev == i);
2564 i->thread_info.sync_next->thread_info.sync_prev = i;
2567 pa_sink_input_attach(i);
2569 pa_sink_input_set_state_within_thread(i, i->state);
2571 /* The requested latency of the sink input needs to be fixed up and
2572 * then configured on the sink. If this causes the sink latency to
2573 * go down, the sink implementor is responsible for doing a rewind
2574 * in the update_requested_latency() callback to ensure that the
2575 * sink buffer doesn't contain more data than what the new latency
2578 * XXX: Does it really make sense to push this responsibility to
2579 * the sink implementors? Wouldn't it be better to do it once in
2580 * the core than many times in the modules? */
2582 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2583 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2585 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2586 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2588 /* We don't rewind here automatically. This is left to the
2589 * sink input implementor because some sink inputs need a
2590 * slow start, i.e. need some time to buffer client
2591 * samples before beginning streaming.
2593 * XXX: Does it really make sense to push this functionality to
2594 * the sink implementors? Wouldn't it be better to do it once in
2595 * the core than many times in the modules? */
2597 /* In flat volume mode we need to update the volume as
2599 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2602 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2603 pa_sink_input *i = PA_SINK_INPUT(userdata);
2605 /* If you change anything here, make sure to change the
2606 * sink input handling a few lines down at
2607 * PA_SINK_MESSAGE_START_MOVE, too. */
2609 pa_sink_input_detach(i);
2611 pa_sink_input_set_state_within_thread(i, i->state);
2613 /* Since the caller sleeps in pa_sink_input_unlink(),
2614 * we can safely access data outside of thread_info even
2615 * though it is mutable */
2617 pa_assert(!i->sync_prev);
2618 pa_assert(!i->sync_next);
2620 if (i->thread_info.sync_prev) {
2621 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2622 i->thread_info.sync_prev = NULL;
2625 if (i->thread_info.sync_next) {
2626 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2627 i->thread_info.sync_next = NULL;
2630 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2631 pa_sink_invalidate_requested_latency(s, true);
2632 pa_sink_request_rewind(s, (size_t) -1);
2634 /* In flat volume mode we need to update the volume as
2636 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2639 case PA_SINK_MESSAGE_START_MOVE: {
2640 pa_sink_input *i = PA_SINK_INPUT(userdata);
2642 /* We don't support moving synchronized streams. */
2643 pa_assert(!i->sync_prev);
2644 pa_assert(!i->sync_next);
2645 pa_assert(!i->thread_info.sync_next);
2646 pa_assert(!i->thread_info.sync_prev);
2648 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2650 size_t sink_nbytes, total_nbytes;
2652 /* The old sink probably has some audio from this
2653 * stream in its buffer. We want to "take it back" as
2654 * much as possible and play it to the new sink. We
2655 * don't know at this point how much the old sink can
2656 * rewind. We have to pick something, and that
2657 * something is the full latency of the old sink here.
2658 * So we rewind the stream buffer by the sink latency
2659 * amount, which may be more than what we should
2660 * rewind. This can result in a chunk of audio being
2661 * played both to the old sink and the new sink.
2663 * FIXME: Fix this code so that we don't have to make
2664 * guesses about how much the sink will actually be
2665 * able to rewind. If someone comes up with a solution
2666 * for this, something to note is that the part of the
2667 * latency that the old sink couldn't rewind should
2668 * ideally be compensated after the stream has moved
2669 * to the new sink by adding silence. The new sink
2670 * most likely can't start playing the moved stream
2671 * immediately, and that gap should be removed from
2672 * the "compensation silence" (at least at the time of
2673 * writing this, the move finish code will actually
2674 * already take care of dropping the new sink's
2675 * unrewindable latency, so taking into account the
2676 * unrewindable latency of the old sink is the only
2679 * The render_memblockq contents are discarded,
2680 * because when the sink changes, the format of the
2681 * audio stored in the render_memblockq may change
2682 * too, making the stored audio invalid. FIXME:
2683 * However, the read and write indices are moved back
2684 * the same amount, so if they are not the same now,
2685 * they won't be the same after the rewind either. If
2686 * the write index of the render_memblockq is ahead of
2687 * the read index, then the render_memblockq will feed
2688 * the new sink some silence first, which it shouldn't
2689 * do. The write index should be flushed to be the
2690 * same as the read index. */
2692 /* Get the latency of the sink */
2693 usec = pa_sink_get_latency_within_thread(s, false);
2694 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2695 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2697 if (total_nbytes > 0) {
2698 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2699 i->thread_info.rewrite_flush = true;
2700 pa_sink_input_process_rewind(i, sink_nbytes);
2704 pa_sink_input_detach(i);
2706 /* Let's remove the sink input ...*/
2707 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2709 pa_sink_invalidate_requested_latency(s, true);
2711 pa_log_debug("Requesting rewind due to started move");
2712 pa_sink_request_rewind(s, (size_t) -1);
2714 /* In flat volume mode we need to update the volume as
2716 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2719 case PA_SINK_MESSAGE_FINISH_MOVE: {
2720 pa_sink_input *i = PA_SINK_INPUT(userdata);
2722 /* We don't support moving synchronized streams. */
2723 pa_assert(!i->sync_prev);
2724 pa_assert(!i->sync_next);
2725 pa_assert(!i->thread_info.sync_next);
2726 pa_assert(!i->thread_info.sync_prev);
2728 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2730 pa_sink_input_attach(i);
2732 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2736 /* In the ideal case the new sink would start playing
2737 * the stream immediately. That requires the sink to
2738 * be able to rewind all of its latency, which usually
2739 * isn't possible, so there will probably be some gap
2740 * before the moved stream becomes audible. We then
2741 * have two possibilities: 1) start playing the stream
2742 * from where it is now, or 2) drop the unrewindable
2743 * latency of the sink from the stream. With option 1
2744 * we won't lose any audio but the stream will have a
2745 * pause. With option 2 we may lose some audio but the
2746 * stream time will be somewhat in sync with the wall
2747 * clock. Lennart seems to have chosen option 2 (one
2748 * of the reasons might have been that option 1 is
2749 * actually much harder to implement), so we drop the
2750 * latency of the new sink from the moved stream and
2751 * hope that the sink will undo most of that in the
2754 /* Get the latency of the sink */
2755 usec = pa_sink_get_latency_within_thread(s, false);
2756 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2759 pa_sink_input_drop(i, nbytes);
2761 pa_log_debug("Requesting rewind due to finished move");
2762 pa_sink_request_rewind(s, nbytes);
2765 /* Updating the requested sink latency has to be done
2766 * after the sink rewind request, not before, because
2767 * otherwise the sink may limit the rewind amount
2770 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2771 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2773 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2774 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2776 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2779 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2780 pa_sink *root_sink = pa_sink_get_master(s);
2782 if (PA_LIKELY(root_sink))
2783 set_shared_volume_within_thread(root_sink);
2788 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2790 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2792 pa_sink_volume_change_push(s);
2794 /* Fall through ... */
2796 case PA_SINK_MESSAGE_SET_VOLUME:
2798 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2799 s->thread_info.soft_volume = s->soft_volume;
2800 pa_sink_request_rewind(s, (size_t) -1);
2803 /* Fall through ... */
2805 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2806 sync_input_volumes_within_thread(s);
2809 case PA_SINK_MESSAGE_GET_VOLUME:
2811 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2813 pa_sink_volume_change_flush(s);
2814 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2817 /* In case sink implementor reset SW volume. */
2818 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2819 s->thread_info.soft_volume = s->soft_volume;
2820 pa_sink_request_rewind(s, (size_t) -1);
2825 case PA_SINK_MESSAGE_SET_MUTE:
2827 if (s->thread_info.soft_muted != s->muted) {
2828 s->thread_info.soft_muted = s->muted;
2829 pa_sink_request_rewind(s, (size_t) -1);
2832 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2837 case PA_SINK_MESSAGE_GET_MUTE:
2839 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2840 return s->get_mute(s, userdata);
2844 case PA_SINK_MESSAGE_SET_STATE: {
2845 struct set_state_data *data = userdata;
2846 bool suspend_change =
2847 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(data->state)) ||
2848 (PA_SINK_IS_OPENED(s->thread_info.state) && data->state == PA_SINK_SUSPENDED);
2850 if (s->set_state_in_io_thread) {
2853 if ((r = s->set_state_in_io_thread(s, data->state, data->suspend_cause)) < 0)
2857 s->thread_info.state = data->state;
2859 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2860 s->thread_info.rewind_nbytes = 0;
2861 s->thread_info.rewind_requested = false;
2864 if (suspend_change) {
2868 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2869 if (i->suspend_within_thread)
2870 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2876 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2878 pa_usec_t *usec = userdata;
2879 *usec = pa_sink_get_requested_latency_within_thread(s);
2881 /* Yes, that's right, the IO thread will see -1 when no
2882 * explicit requested latency is configured, the main
2883 * thread will see max_latency */
2884 if (*usec == (pa_usec_t) -1)
2885 *usec = s->thread_info.max_latency;
2890 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2891 pa_usec_t *r = userdata;
2893 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2898 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2899 pa_usec_t *r = userdata;
2901 r[0] = s->thread_info.min_latency;
2902 r[1] = s->thread_info.max_latency;
2907 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2909 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2912 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2914 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2917 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2919 *((size_t*) userdata) = s->thread_info.max_rewind;
2922 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2924 *((size_t*) userdata) = s->thread_info.max_request;
2927 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2929 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2932 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2934 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2937 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2938 /* This message is sent from IO-thread and handled in main thread. */
2939 pa_assert_ctl_context();
2941 /* Make sure we're not messing with main thread when no longer linked */
2942 if (!PA_SINK_IS_LINKED(s->state))
2945 pa_sink_get_volume(s, true);
2946 pa_sink_get_mute(s, true);
2949 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2950 s->thread_info.port_latency_offset = offset;
2953 case PA_SINK_MESSAGE_GET_LATENCY:
2954 case PA_SINK_MESSAGE_MAX:
2961 /* Called from main thread */
2962 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2967 pa_core_assert_ref(c);
2968 pa_assert_ctl_context();
2969 pa_assert(cause != 0);
2971 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2974 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2981 /* Called from IO thread */
2982 void pa_sink_detach_within_thread(pa_sink *s) {
2986 pa_sink_assert_ref(s);
2987 pa_sink_assert_io_context(s);
2988 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2990 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2991 pa_sink_input_detach(i);
2993 if (s->monitor_source)
2994 pa_source_detach_within_thread(s->monitor_source);
2997 /* Called from IO thread */
2998 void pa_sink_attach_within_thread(pa_sink *s) {
3002 pa_sink_assert_ref(s);
3003 pa_sink_assert_io_context(s);
3004 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3006 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3007 pa_sink_input_attach(i);
3009 if (s->monitor_source)
3010 pa_source_attach_within_thread(s->monitor_source);
3013 /* Called from IO thread */
3014 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3015 pa_sink_assert_ref(s);
3016 pa_sink_assert_io_context(s);
3017 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3019 if (nbytes == (size_t) -1)
3020 nbytes = s->thread_info.max_rewind;
3022 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3024 if (s->thread_info.rewind_requested &&
3025 nbytes <= s->thread_info.rewind_nbytes)
3028 s->thread_info.rewind_nbytes = nbytes;
3029 s->thread_info.rewind_requested = true;
3031 if (s->request_rewind)
3032 s->request_rewind(s);
3035 /* Called from IO thread */
3036 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3037 pa_usec_t result = (pa_usec_t) -1;
3040 pa_usec_t monitor_latency;
3042 pa_sink_assert_ref(s);
3043 pa_sink_assert_io_context(s);
3045 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3046 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3048 if (s->thread_info.requested_latency_valid)
3049 return s->thread_info.requested_latency;
3051 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3052 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3053 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3054 result = i->thread_info.requested_sink_latency;
3056 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3058 if (monitor_latency != (pa_usec_t) -1 &&
3059 (result == (pa_usec_t) -1 || result > monitor_latency))
3060 result = monitor_latency;
3062 if (result != (pa_usec_t) -1)
3063 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3065 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3066 /* Only cache if properly initialized */
3067 s->thread_info.requested_latency = result;
3068 s->thread_info.requested_latency_valid = true;
3074 /* Called from main thread */
3075 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3078 pa_sink_assert_ref(s);
3079 pa_assert_ctl_context();
3080 pa_assert(PA_SINK_IS_LINKED(s->state));
3082 if (s->state == PA_SINK_SUSPENDED)
3085 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3090 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3091 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3095 pa_sink_assert_ref(s);
3096 pa_sink_assert_io_context(s);
3098 if (max_rewind == s->thread_info.max_rewind)
3101 s->thread_info.max_rewind = max_rewind;
3103 if (PA_SINK_IS_LINKED(s->thread_info.state))
3104 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3105 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3107 if (s->monitor_source)
3108 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3111 /* Called from main thread */
3112 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3113 pa_sink_assert_ref(s);
3114 pa_assert_ctl_context();
3116 if (PA_SINK_IS_LINKED(s->state))
3117 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3119 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3122 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3123 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3126 pa_sink_assert_ref(s);
3127 pa_sink_assert_io_context(s);
3129 if (max_request == s->thread_info.max_request)
3132 s->thread_info.max_request = max_request;
3134 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3137 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3138 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3142 /* Called from main thread */
3143 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3144 pa_sink_assert_ref(s);
3145 pa_assert_ctl_context();
3147 if (PA_SINK_IS_LINKED(s->state))
3148 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3150 pa_sink_set_max_request_within_thread(s, max_request);
3153 /* Called from IO thread */
3154 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3158 pa_sink_assert_ref(s);
3159 pa_sink_assert_io_context(s);
3161 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3162 s->thread_info.requested_latency_valid = false;
3166 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3168 if (s->update_requested_latency)
3169 s->update_requested_latency(s);
3171 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3172 if (i->update_sink_requested_latency)
3173 i->update_sink_requested_latency(i);
3177 /* Called from main thread */
3178 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3179 pa_sink_assert_ref(s);
3180 pa_assert_ctl_context();
3182 /* min_latency == 0: no limit
3183 * min_latency anything else: specified limit
3185 * Similar for max_latency */
3187 if (min_latency < ABSOLUTE_MIN_LATENCY)
3188 min_latency = ABSOLUTE_MIN_LATENCY;
3190 if (max_latency <= 0 ||
3191 max_latency > ABSOLUTE_MAX_LATENCY)
3192 max_latency = ABSOLUTE_MAX_LATENCY;
3194 pa_assert(min_latency <= max_latency);
3196 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3197 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3198 max_latency == ABSOLUTE_MAX_LATENCY) ||
3199 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3201 if (PA_SINK_IS_LINKED(s->state)) {
3207 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3209 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3212 /* Called from main thread */
3213 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3214 pa_sink_assert_ref(s);
3215 pa_assert_ctl_context();
3216 pa_assert(min_latency);
3217 pa_assert(max_latency);
3219 if (PA_SINK_IS_LINKED(s->state)) {
3220 pa_usec_t r[2] = { 0, 0 };
3222 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3224 *min_latency = r[0];
3225 *max_latency = r[1];
3227 *min_latency = s->thread_info.min_latency;
3228 *max_latency = s->thread_info.max_latency;
3232 /* Called from IO thread */
3233 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3234 pa_sink_assert_ref(s);
3235 pa_sink_assert_io_context(s);
3237 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3238 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3239 pa_assert(min_latency <= max_latency);
3241 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3242 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3243 max_latency == ABSOLUTE_MAX_LATENCY) ||
3244 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3246 if (s->thread_info.min_latency == min_latency &&
3247 s->thread_info.max_latency == max_latency)
3250 s->thread_info.min_latency = min_latency;
3251 s->thread_info.max_latency = max_latency;
3253 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3257 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3258 if (i->update_sink_latency_range)
3259 i->update_sink_latency_range(i);
3262 pa_sink_invalidate_requested_latency(s, false);
3264 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3267 /* Called from main thread */
3268 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3269 pa_sink_assert_ref(s);
3270 pa_assert_ctl_context();
3272 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3273 pa_assert(latency == 0);
3277 if (latency < ABSOLUTE_MIN_LATENCY)
3278 latency = ABSOLUTE_MIN_LATENCY;
3280 if (latency > ABSOLUTE_MAX_LATENCY)
3281 latency = ABSOLUTE_MAX_LATENCY;
3283 if (PA_SINK_IS_LINKED(s->state))
3284 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3286 s->thread_info.fixed_latency = latency;
3288 pa_source_set_fixed_latency(s->monitor_source, latency);
3291 /* Called from main thread */
3292 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3295 pa_sink_assert_ref(s);
3296 pa_assert_ctl_context();
3298 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3301 if (PA_SINK_IS_LINKED(s->state))
3302 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3304 latency = s->thread_info.fixed_latency;
3309 /* Called from IO thread */
3310 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3311 pa_sink_assert_ref(s);
3312 pa_sink_assert_io_context(s);
3314 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3315 pa_assert(latency == 0);
3316 s->thread_info.fixed_latency = 0;
3318 if (s->monitor_source)
3319 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3324 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3325 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3327 if (s->thread_info.fixed_latency == latency)
3330 s->thread_info.fixed_latency = latency;
3332 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3336 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3337 if (i->update_sink_fixed_latency)
3338 i->update_sink_fixed_latency(i);
3341 pa_sink_invalidate_requested_latency(s, false);
3343 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3346 /* Called from main context */
3347 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3348 pa_sink_assert_ref(s);
3350 s->port_latency_offset = offset;
3352 if (PA_SINK_IS_LINKED(s->state))
3353 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3355 s->thread_info.port_latency_offset = offset;
3357 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3360 /* Called from main context */
3361 size_t pa_sink_get_max_rewind(pa_sink *s) {
3363 pa_assert_ctl_context();
3364 pa_sink_assert_ref(s);
3366 if (!PA_SINK_IS_LINKED(s->state))
3367 return s->thread_info.max_rewind;
3369 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3374 /* Called from main context */
3375 size_t pa_sink_get_max_request(pa_sink *s) {
3377 pa_sink_assert_ref(s);
3378 pa_assert_ctl_context();
3380 if (!PA_SINK_IS_LINKED(s->state))
3381 return s->thread_info.max_request;
3383 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3388 /* Called from main context */
3389 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3390 pa_device_port *port;
3392 pa_sink_assert_ref(s);
3393 pa_assert_ctl_context();
3396 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3397 return -PA_ERR_NOTIMPLEMENTED;
3401 return -PA_ERR_NOENTITY;
3403 if (!(port = pa_hashmap_get(s->ports, name)))
3404 return -PA_ERR_NOENTITY;
3406 if (s->active_port == port) {
3407 s->save_port = s->save_port || save;
3411 if (s->set_port(s, port) < 0)
3412 return -PA_ERR_NOENTITY;
3414 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3416 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3418 s->active_port = port;
3419 s->save_port = save;
3421 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3423 /* The active port affects the default sink selection. */
3424 pa_core_update_default_sink(s->core);
3426 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3431 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3432 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3436 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3439 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3441 if (pa_streq(ff, "microphone"))
3442 t = "audio-input-microphone";
3443 else if (pa_streq(ff, "webcam"))
3445 else if (pa_streq(ff, "computer"))
3447 else if (pa_streq(ff, "handset"))
3449 else if (pa_streq(ff, "portable"))
3450 t = "multimedia-player";
3451 else if (pa_streq(ff, "tv"))
3452 t = "video-display";
3455 * The following icons are not part of the icon naming spec,
3456 * because Rodney Dawes sucks as the maintainer of that spec.
3458 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3460 else if (pa_streq(ff, "headset"))
3461 t = "audio-headset";
3462 else if (pa_streq(ff, "headphone"))
3463 t = "audio-headphones";
3464 else if (pa_streq(ff, "speaker"))
3465 t = "audio-speakers";
3466 else if (pa_streq(ff, "hands-free"))
3467 t = "audio-handsfree";
3471 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3472 if (pa_streq(c, "modem"))
3479 t = "audio-input-microphone";
3482 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3483 if (strstr(profile, "analog"))
3485 else if (strstr(profile, "iec958"))
3487 else if (strstr(profile, "hdmi"))
3491 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3493 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3498 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3499 const char *s, *d = NULL, *k;
3502 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3506 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3510 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3511 if (pa_streq(s, "internal"))
3512 d = _("Built-in Audio");
3515 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3516 if (pa_streq(s, "modem"))
3520 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3525 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3528 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3530 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3535 bool pa_device_init_intended_roles(pa_proplist *p) {
3539 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3542 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3543 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3544 || pa_streq(s, "headset")) {
3545 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3552 unsigned pa_device_init_priority(pa_proplist *p) {
3554 unsigned priority = 0;
3558 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3560 if (pa_streq(s, "sound"))
3562 else if (!pa_streq(s, "modem"))
3566 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3568 if (pa_streq(s, "headphone"))
3570 else if (pa_streq(s, "hifi"))
3572 else if (pa_streq(s, "speaker"))
3574 else if (pa_streq(s, "portable"))
3578 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3580 if (pa_streq(s, "bluetooth"))
3582 else if (pa_streq(s, "usb"))
3584 else if (pa_streq(s, "pci"))
3588 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3590 if (pa_startswith(s, "analog-"))
3592 else if (pa_startswith(s, "iec958-"))
3599 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3601 /* Called from the IO thread. */
3602 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3603 pa_sink_volume_change *c;
3604 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3605 c = pa_xnew(pa_sink_volume_change, 1);
3607 PA_LLIST_INIT(pa_sink_volume_change, c);
3609 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3613 /* Called from the IO thread. */
3614 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3616 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3620 /* Called from the IO thread. */
3621 void pa_sink_volume_change_push(pa_sink *s) {
3622 pa_sink_volume_change *c = NULL;
3623 pa_sink_volume_change *nc = NULL;
3624 pa_sink_volume_change *pc = NULL;
3625 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3627 const char *direction = NULL;
3630 nc = pa_sink_volume_change_new(s);
3632 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3633 * Adding one more volume for HW would get us rid of this, but I am trying
3634 * to survive with the ones we already have. */
3635 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3637 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3638 pa_log_debug("Volume not changing");
3639 pa_sink_volume_change_free(nc);
3643 nc->at = pa_sink_get_latency_within_thread(s, false);
3644 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3646 if (s->thread_info.volume_changes_tail) {
3647 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3648 /* If volume is going up let's do it a bit late. If it is going
3649 * down let's do it a bit early. */
3650 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3651 if (nc->at + safety_margin > c->at) {
3652 nc->at += safety_margin;
3657 else if (nc->at - safety_margin > c->at) {
3658 nc->at -= safety_margin;
3666 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3667 nc->at += safety_margin;
3670 nc->at -= safety_margin;
3673 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3676 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3679 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3681 /* We can ignore volume events that came earlier but should happen later than this. */
3682 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3683 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3684 pa_sink_volume_change_free(c);
3687 s->thread_info.volume_changes_tail = nc;
3690 /* Called from the IO thread. */
3691 static void pa_sink_volume_change_flush(pa_sink *s) {
3692 pa_sink_volume_change *c = s->thread_info.volume_changes;
3694 s->thread_info.volume_changes = NULL;
3695 s->thread_info.volume_changes_tail = NULL;
3697 pa_sink_volume_change *next = c->next;
3698 pa_sink_volume_change_free(c);
3703 /* Called from the IO thread. */
3704 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3710 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3716 pa_assert(s->write_volume);
3718 now = pa_rtclock_now();
3720 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3721 pa_sink_volume_change *c = s->thread_info.volume_changes;
3722 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3723 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3724 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3726 s->thread_info.current_hw_volume = c->hw_volume;
3727 pa_sink_volume_change_free(c);
3733 if (s->thread_info.volume_changes) {
3735 *usec_to_next = s->thread_info.volume_changes->at - now;
3736 if (pa_log_ratelimit(PA_LOG_DEBUG))
3737 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3742 s->thread_info.volume_changes_tail = NULL;
3747 /* Called from the IO thread. */
3748 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3749 /* All the queued volume events later than current latency are shifted to happen earlier. */
3750 pa_sink_volume_change *c;
3751 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3752 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3753 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3755 pa_log_debug("latency = %lld", (long long) limit);
3756 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3758 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3759 pa_usec_t modified_limit = limit;
3760 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3761 modified_limit -= s->thread_info.volume_change_safety_margin;
3763 modified_limit += s->thread_info.volume_change_safety_margin;
3764 if (c->at > modified_limit) {
3766 if (c->at < modified_limit)
3767 c->at = modified_limit;
3769 prev_vol = pa_cvolume_avg(&c->hw_volume);
3771 pa_sink_volume_change_apply(s, NULL);
3774 /* Called from the main thread */
3775 /* Gets the list of formats supported by the sink. The members and idxset must
3776 * be freed by the caller. */
3777 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3782 if (s->get_formats) {
3783 /* Sink supports format query, all is good */
3784 ret = s->get_formats(s);
3786 /* Sink doesn't support format query, so assume it does PCM */
3787 pa_format_info *f = pa_format_info_new();
3788 f->encoding = PA_ENCODING_PCM;
3790 ret = pa_idxset_new(NULL, NULL);
3791 pa_idxset_put(ret, f, NULL);
3797 /* Called from the main thread */
3798 /* Allows an external source to set what formats a sink supports if the sink
3799 * permits this. The function makes a copy of the formats on success. */
3800 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3805 /* Sink supports setting formats -- let's give it a shot */
3806 return s->set_formats(s, formats);
3808 /* Sink doesn't support setting this -- bail out */
3812 /* Called from the main thread */
3813 /* Checks if the sink can accept this format */
3814 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3815 pa_idxset *formats = NULL;
3821 formats = pa_sink_get_formats(s);
3824 pa_format_info *finfo_device;
3827 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3828 if (pa_format_info_is_compatible(finfo_device, f)) {
3834 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3840 /* Called from the main thread */
3841 /* Calculates the intersection between formats supported by the sink and
3842 * in_formats, and returns these, in the order of the sink's formats. */
3843 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3844 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3845 pa_format_info *f_sink, *f_in;
3850 if (!in_formats || pa_idxset_isempty(in_formats))
3853 sink_formats = pa_sink_get_formats(s);
3855 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3856 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3857 if (pa_format_info_is_compatible(f_sink, f_in))
3858 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3864 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3869 /* Called from the main thread */
3870 void pa_sink_set_sample_format(pa_sink *s, pa_sample_format_t format) {
3871 pa_sample_format_t old_format;
3874 pa_assert(pa_sample_format_valid(format));
3876 old_format = s->sample_spec.format;
3877 if (old_format == format)
3880 pa_log_info("%s: format: %s -> %s",
3881 s->name, pa_sample_format_to_string(old_format), pa_sample_format_to_string(format));
3883 s->sample_spec.format = format;
3885 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3888 /* Called from the main thread */
3889 void pa_sink_set_sample_rate(pa_sink *s, uint32_t rate) {
3893 pa_assert(pa_sample_rate_valid(rate));
3895 old_rate = s->sample_spec.rate;
3896 if (old_rate == rate)
3899 pa_log_info("%s: rate: %u -> %u", s->name, old_rate, rate);
3901 s->sample_spec.rate = rate;
3903 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3906 /* Called from the main thread. */
3907 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3908 pa_cvolume old_volume;
3909 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3910 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3915 old_volume = s->reference_volume;
3917 if (pa_cvolume_equal(volume, &old_volume))
3920 s->reference_volume = *volume;
3921 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3922 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3923 s->flags & PA_SINK_DECIBEL_VOLUME),
3924 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3925 s->flags & PA_SINK_DECIBEL_VOLUME));
3927 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3928 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);