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->inputs = pa_idxset_new(NULL, NULL);
276 s->input_to_master = NULL;
278 s->reference_volume = s->real_volume = data->volume;
279 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
280 s->base_volume = PA_VOLUME_NORM;
281 s->n_volume_steps = PA_VOLUME_NORM+1;
282 s->muted = data->muted;
283 s->refresh_volume = s->refresh_muted = false;
290 /* As a minor optimization we just steal the list instead of
292 s->ports = data->ports;
295 s->active_port = NULL;
296 s->save_port = false;
298 if (data->active_port)
299 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
300 s->save_port = data->save_port;
302 /* Hopefully the active port has already been assigned in the previous call
303 to pa_device_port_find_best, but better safe than sorry */
305 s->active_port = pa_device_port_find_best(s->ports);
308 s->port_latency_offset = s->active_port->latency_offset;
310 s->port_latency_offset = 0;
312 s->save_volume = data->save_volume;
313 s->save_muted = data->save_muted;
315 pa_silence_memchunk_get(
316 &core->silence_cache,
322 s->thread_info.rtpoll = NULL;
323 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
324 (pa_free_cb_t) pa_sink_input_unref);
325 s->thread_info.soft_volume = s->soft_volume;
326 s->thread_info.soft_muted = s->muted;
327 s->thread_info.state = s->state;
328 s->thread_info.rewind_nbytes = 0;
329 s->thread_info.rewind_requested = false;
330 s->thread_info.max_rewind = 0;
331 s->thread_info.max_request = 0;
332 s->thread_info.requested_latency_valid = false;
333 s->thread_info.requested_latency = 0;
334 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
335 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
336 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
338 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
339 s->thread_info.volume_changes_tail = NULL;
340 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
341 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
342 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
343 s->thread_info.port_latency_offset = s->port_latency_offset;
345 /* FIXME: This should probably be moved to pa_sink_put() */
346 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
349 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
351 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
352 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
355 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
356 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
360 pa_source_new_data_init(&source_data);
361 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
362 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
363 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
364 source_data.name = pa_sprintf_malloc("%s.monitor", name);
365 source_data.driver = data->driver;
366 source_data.module = data->module;
367 source_data.card = data->card;
369 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
370 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
371 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
373 s->monitor_source = pa_source_new(core, &source_data,
374 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
375 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
377 pa_source_new_data_done(&source_data);
379 if (!s->monitor_source) {
385 s->monitor_source->monitor_of = s;
387 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
388 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
389 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
394 /* Called from main context */
395 static int sink_set_state(pa_sink *s, pa_sink_state_t state, pa_suspend_cause_t suspend_cause) {
398 bool suspend_cause_changed;
403 pa_assert_ctl_context();
405 state_changed = state != s->state;
406 suspend_cause_changed = suspend_cause != s->suspend_cause;
408 if (!state_changed && !suspend_cause_changed)
411 suspending = PA_SINK_IS_OPENED(s->state) && state == PA_SINK_SUSPENDED;
412 resuming = s->state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state);
414 /* If we are resuming, suspend_cause must be 0. */
415 pa_assert(!resuming || !suspend_cause);
417 /* Here's something to think about: what to do with the suspend cause if
418 * resuming the sink fails? The old suspend cause will be incorrect, so we
419 * can't use that. On the other hand, if we set no suspend cause (as is the
420 * case currently), then it looks strange to have a sink suspended without
421 * any cause. It might be a good idea to add a new "resume failed" suspend
422 * cause, or it might just add unnecessary complexity, given that the
423 * current approach of not setting any suspend cause works well enough. */
425 if (s->set_state_in_main_thread) {
426 if ((ret = s->set_state_in_main_thread(s, state, suspend_cause)) < 0) {
427 /* set_state_in_main_thread() is allowed to fail only when resuming. */
430 /* If resuming fails, we set the state to SUSPENDED and
431 * suspend_cause to 0. */
432 state = PA_SINK_SUSPENDED;
434 state_changed = false;
435 suspend_cause_changed = suspend_cause != s->suspend_cause;
438 /* We know the state isn't changing. If the suspend cause isn't
439 * changing either, then there's nothing more to do. */
440 if (!suspend_cause_changed)
446 struct set_state_data data = { .state = state, .suspend_cause = suspend_cause };
448 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, &data, 0, NULL)) < 0) {
449 /* SET_STATE is allowed to fail only when resuming. */
452 if (s->set_state_in_main_thread)
453 s->set_state_in_main_thread(s, PA_SINK_SUSPENDED, 0);
455 /* If resuming fails, we set the state to SUSPENDED and
456 * suspend_cause to 0. */
457 state = PA_SINK_SUSPENDED;
459 state_changed = false;
460 suspend_cause_changed = suspend_cause != s->suspend_cause;
463 /* We know the state isn't changing. If the suspend cause isn't
464 * changing either, then there's nothing more to do. */
465 if (!suspend_cause_changed)
470 if (suspend_cause_changed) {
471 char old_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
472 char new_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
474 pa_log_debug("%s: suspend_cause: %s -> %s", s->name, pa_suspend_cause_to_string(s->suspend_cause, old_cause_buf),
475 pa_suspend_cause_to_string(suspend_cause, new_cause_buf));
476 s->suspend_cause = suspend_cause;
480 pa_log_debug("%s: state: %s -> %s", s->name, pa_sink_state_to_string(s->state), pa_sink_state_to_string(state));
483 /* If we enter UNLINKED state, then we don't send change notifications.
484 * pa_sink_unlink() will send unlink notifications instead. */
485 if (state != PA_SINK_UNLINKED) {
486 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
487 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
491 if (suspending || resuming) {
495 /* We're suspending or resuming, tell everyone about it */
497 PA_IDXSET_FOREACH(i, s->inputs, idx)
498 if (s->state == PA_SINK_SUSPENDED &&
499 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
500 pa_sink_input_kill(i);
502 i->suspend(i, state == PA_SINK_SUSPENDED);
505 if ((suspending || resuming || suspend_cause_changed) && s->monitor_source && state != PA_SINK_UNLINKED)
506 pa_source_sync_suspend(s->monitor_source);
511 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
517 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
518 pa_sink_flags_t flags;
521 pa_assert(!s->write_volume || cb);
525 /* Save the current flags so we can tell if they've changed */
529 /* The sink implementor is responsible for setting decibel volume support */
530 s->flags |= PA_SINK_HW_VOLUME_CTRL;
532 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
533 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
534 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
537 /* If the flags have changed after init, let any clients know via a change event */
538 if (s->state != PA_SINK_INIT && flags != s->flags)
539 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
542 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
543 pa_sink_flags_t flags;
546 pa_assert(!cb || s->set_volume);
548 s->write_volume = cb;
550 /* Save the current flags so we can tell if they've changed */
554 s->flags |= PA_SINK_DEFERRED_VOLUME;
556 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
558 /* If the flags have changed after init, let any clients know via a change event */
559 if (s->state != PA_SINK_INIT && flags != s->flags)
560 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
563 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
569 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
570 pa_sink_flags_t flags;
576 /* Save the current flags so we can tell if they've changed */
580 s->flags |= PA_SINK_HW_MUTE_CTRL;
582 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
584 /* If the flags have changed after init, let any clients know via a change event */
585 if (s->state != PA_SINK_INIT && flags != s->flags)
586 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
589 static void enable_flat_volume(pa_sink *s, bool enable) {
590 pa_sink_flags_t flags;
594 /* Always follow the overall user preference here */
595 enable = enable && s->core->flat_volumes;
597 /* Save the current flags so we can tell if they've changed */
601 s->flags |= PA_SINK_FLAT_VOLUME;
603 s->flags &= ~PA_SINK_FLAT_VOLUME;
605 /* If the flags have changed after init, let any clients know via a change event */
606 if (s->state != PA_SINK_INIT && flags != s->flags)
607 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
610 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
611 pa_sink_flags_t flags;
615 /* Save the current flags so we can tell if they've changed */
619 s->flags |= PA_SINK_DECIBEL_VOLUME;
620 enable_flat_volume(s, true);
622 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
623 enable_flat_volume(s, false);
626 /* If the flags have changed after init, let any clients know via a change event */
627 if (s->state != PA_SINK_INIT && flags != s->flags)
628 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
631 /* Called from main context */
632 void pa_sink_put(pa_sink* s) {
633 pa_sink_assert_ref(s);
634 pa_assert_ctl_context();
636 pa_assert(s->state == PA_SINK_INIT);
637 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
639 /* The following fields must be initialized properly when calling _put() */
640 pa_assert(s->asyncmsgq);
641 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
643 /* Generally, flags should be initialized via pa_sink_new(). As a
644 * special exception we allow some volume related flags to be set
645 * between _new() and _put() by the callback setter functions above.
647 * Thus we implement a couple safeguards here which ensure the above
648 * setters were used (or at least the implementor made manual changes
649 * in a compatible way).
651 * Note: All of these flags set here can change over the life time
653 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
654 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
655 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
657 /* XXX: Currently decibel volume is disabled for all sinks that use volume
658 * sharing. When the master sink supports decibel volume, it would be good
659 * to have the flag also in the filter sink, but currently we don't do that
660 * so that the flags of the filter sink never change when it's moved from
661 * a master sink to another. One solution for this problem would be to
662 * remove user-visible volume altogether from filter sinks when volume
663 * sharing is used, but the current approach was easier to implement... */
664 /* We always support decibel volumes in software, otherwise we leave it to
665 * the sink implementor to set this flag as needed.
667 * Note: This flag can also change over the life time of the sink. */
668 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
669 pa_sink_enable_decibel_volume(s, true);
670 s->soft_volume = s->reference_volume;
673 /* If the sink implementor support DB volumes by itself, we should always
674 * try and enable flat volumes too */
675 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
676 enable_flat_volume(s, true);
678 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
679 pa_sink *root_sink = pa_sink_get_master(s);
681 pa_assert(root_sink);
683 s->reference_volume = root_sink->reference_volume;
684 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
686 s->real_volume = root_sink->real_volume;
687 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
689 /* We assume that if the sink implementor changed the default
690 * volume he did so in real_volume, because that is the usual
691 * place where he is supposed to place his changes. */
692 s->reference_volume = s->real_volume;
694 s->thread_info.soft_volume = s->soft_volume;
695 s->thread_info.soft_muted = s->muted;
696 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
698 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
699 || (s->base_volume == PA_VOLUME_NORM
700 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
701 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
702 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
703 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
704 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
706 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
707 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
708 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
710 if (s->suspend_cause)
711 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED, s->suspend_cause) == 0);
713 pa_assert_se(sink_set_state(s, PA_SINK_IDLE, 0) == 0);
715 pa_source_put(s->monitor_source);
717 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
718 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
720 /* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
721 * because module-switch-on-connect needs to know the old default sink */
722 pa_core_update_default_sink(s->core);
725 /* Called from main context */
726 void pa_sink_unlink(pa_sink* s) {
728 pa_sink_input *i, PA_UNUSED *j = NULL;
730 pa_sink_assert_ref(s);
731 pa_assert_ctl_context();
733 /* Please note that pa_sink_unlink() does more than simply
734 * reversing pa_sink_put(). It also undoes the registrations
735 * already done in pa_sink_new()! */
737 if (s->unlink_requested)
740 s->unlink_requested = true;
742 linked = PA_SINK_IS_LINKED(s->state);
745 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
747 if (s->state != PA_SINK_UNLINKED)
748 pa_namereg_unregister(s->core, s->name);
749 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
751 pa_core_update_default_sink(s->core);
754 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
756 while ((i = pa_idxset_first(s->inputs, NULL))) {
758 pa_sink_input_kill(i);
763 sink_set_state(s, PA_SINK_UNLINKED, 0);
765 s->state = PA_SINK_UNLINKED;
769 if (s->monitor_source)
770 pa_source_unlink(s->monitor_source);
773 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
774 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
778 /* Called from main context */
779 static void sink_free(pa_object *o) {
780 pa_sink *s = PA_SINK(o);
783 pa_assert_ctl_context();
784 pa_assert(pa_sink_refcnt(s) == 0);
785 pa_assert(!PA_SINK_IS_LINKED(s->state));
787 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
789 pa_sink_volume_change_flush(s);
791 if (s->monitor_source) {
792 pa_source_unref(s->monitor_source);
793 s->monitor_source = NULL;
796 pa_idxset_free(s->inputs, NULL);
797 pa_hashmap_free(s->thread_info.inputs);
799 if (s->silence.memblock)
800 pa_memblock_unref(s->silence.memblock);
806 pa_proplist_free(s->proplist);
809 pa_hashmap_free(s->ports);
814 /* Called from main context, and not while the IO thread is active, please */
815 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
816 pa_sink_assert_ref(s);
817 pa_assert_ctl_context();
821 if (s->monitor_source)
822 pa_source_set_asyncmsgq(s->monitor_source, q);
825 /* Called from main context, and not while the IO thread is active, please */
826 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
827 pa_sink_flags_t old_flags;
828 pa_sink_input *input;
831 pa_sink_assert_ref(s);
832 pa_assert_ctl_context();
834 /* For now, allow only a minimal set of flags to be changed. */
835 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
837 old_flags = s->flags;
838 s->flags = (s->flags & ~mask) | (value & mask);
840 if (s->flags == old_flags)
843 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
844 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
846 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
847 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
848 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
850 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
851 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
853 if (s->monitor_source)
854 pa_source_update_flags(s->monitor_source,
855 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
856 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
857 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
858 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
860 PA_IDXSET_FOREACH(input, s->inputs, idx) {
861 if (input->origin_sink)
862 pa_sink_update_flags(input->origin_sink, mask, value);
866 /* Called from IO context, or before _put() from main context */
867 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
868 pa_sink_assert_ref(s);
869 pa_sink_assert_io_context(s);
871 s->thread_info.rtpoll = p;
873 if (s->monitor_source)
874 pa_source_set_rtpoll(s->monitor_source, p);
877 /* Called from main context */
878 int pa_sink_update_status(pa_sink*s) {
879 pa_sink_assert_ref(s);
880 pa_assert_ctl_context();
881 pa_assert(PA_SINK_IS_LINKED(s->state));
883 if (s->state == PA_SINK_SUSPENDED)
886 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
889 /* Called from main context */
890 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
891 pa_suspend_cause_t merged_cause;
893 pa_sink_assert_ref(s);
894 pa_assert_ctl_context();
895 pa_assert(PA_SINK_IS_LINKED(s->state));
896 pa_assert(cause != 0);
899 merged_cause = s->suspend_cause | cause;
901 merged_cause = s->suspend_cause & ~cause;
904 return sink_set_state(s, PA_SINK_SUSPENDED, merged_cause);
906 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
909 /* Called from main context */
910 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
911 pa_sink_input *i, *n;
914 pa_sink_assert_ref(s);
915 pa_assert_ctl_context();
916 pa_assert(PA_SINK_IS_LINKED(s->state));
921 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
922 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
924 pa_sink_input_ref(i);
926 if (pa_sink_input_start_move(i) >= 0)
929 pa_sink_input_unref(i);
935 /* Called from main context */
936 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
939 pa_sink_assert_ref(s);
940 pa_assert_ctl_context();
941 pa_assert(PA_SINK_IS_LINKED(s->state));
944 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
945 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
946 if (pa_sink_input_finish_move(i, s, save) < 0)
947 pa_sink_input_fail_move(i);
950 pa_sink_input_unref(i);
953 pa_queue_free(q, NULL);
956 /* Called from main context */
957 void pa_sink_move_all_fail(pa_queue *q) {
960 pa_assert_ctl_context();
963 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
964 pa_sink_input_fail_move(i);
965 pa_sink_input_unref(i);
968 pa_queue_free(q, NULL);
971 /* Called from IO thread context */
972 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
977 pa_sink_assert_ref(s);
978 pa_sink_assert_io_context(s);
980 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
981 size_t uf = i->thread_info.underrun_for_sink;
983 /* Propagate down the filter tree */
984 if (i->origin_sink) {
985 size_t filter_result, left_to_play_origin;
987 /* The recursive call works in the origin sink domain ... */
988 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
990 /* .. and returns the time to sleep before waking up. We need the
991 * underrun duration for comparisons, so we undo the subtraction on
992 * the return value... */
993 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
995 /* ... and convert it back to the master sink domain */
996 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
998 /* Remember the longest underrun so far */
999 if (filter_result > result)
1000 result = filter_result;
1004 /* No underrun here, move on */
1006 } else if (uf >= left_to_play) {
1007 /* The sink has possibly consumed all the data the sink input provided */
1008 pa_sink_input_process_underrun(i);
1009 } else if (uf > result) {
1010 /* Remember the longest underrun so far */
1016 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
1017 (long) result, (long) left_to_play - result);
1018 return left_to_play - result;
1021 /* Called from IO thread context */
1022 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1026 pa_sink_assert_ref(s);
1027 pa_sink_assert_io_context(s);
1028 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1030 /* If nobody requested this and this is actually no real rewind
1031 * then we can short cut this. Please note that this means that
1032 * not all rewind requests triggered upstream will always be
1033 * translated in actual requests! */
1034 if (!s->thread_info.rewind_requested && nbytes <= 0)
1037 s->thread_info.rewind_nbytes = 0;
1038 s->thread_info.rewind_requested = false;
1041 pa_log_debug("Processing rewind...");
1042 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1043 pa_sink_volume_change_rewind(s, nbytes);
1046 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1047 pa_sink_input_assert_ref(i);
1048 pa_sink_input_process_rewind(i, nbytes);
1052 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1053 pa_source_process_rewind(s->monitor_source, nbytes);
1057 /* Called from IO thread context */
1058 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1062 size_t mixlength = *length;
1064 pa_sink_assert_ref(s);
1065 pa_sink_assert_io_context(s);
1068 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1069 pa_sink_input_assert_ref(i);
1071 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1073 if (mixlength == 0 || info->chunk.length < mixlength)
1074 mixlength = info->chunk.length;
1076 if (pa_memblock_is_silence(info->chunk.memblock)) {
1077 pa_memblock_unref(info->chunk.memblock);
1081 info->userdata = pa_sink_input_ref(i);
1083 pa_assert(info->chunk.memblock);
1084 pa_assert(info->chunk.length > 0);
1092 *length = mixlength;
1097 /* Called from IO thread context */
1098 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1102 unsigned n_unreffed = 0;
1104 pa_sink_assert_ref(s);
1105 pa_sink_assert_io_context(s);
1107 pa_assert(result->memblock);
1108 pa_assert(result->length > 0);
1110 /* We optimize for the case where the order of the inputs has not changed */
1112 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1114 pa_mix_info* m = NULL;
1116 pa_sink_input_assert_ref(i);
1118 /* Let's try to find the matching entry info the pa_mix_info array */
1119 for (j = 0; j < n; j ++) {
1121 if (info[p].userdata == i) {
1131 /* Drop read data */
1132 pa_sink_input_drop(i, result->length);
1134 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1136 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1137 void *ostate = NULL;
1138 pa_source_output *o;
1141 if (m && m->chunk.memblock) {
1143 pa_memblock_ref(c.memblock);
1144 pa_assert(result->length <= c.length);
1145 c.length = result->length;
1147 pa_memchunk_make_writable(&c, 0);
1148 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1151 pa_memblock_ref(c.memblock);
1152 pa_assert(result->length <= c.length);
1153 c.length = result->length;
1156 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1157 pa_source_output_assert_ref(o);
1158 pa_assert(o->direct_on_input == i);
1159 pa_source_post_direct(s->monitor_source, o, &c);
1162 pa_memblock_unref(c.memblock);
1167 if (m->chunk.memblock) {
1168 pa_memblock_unref(m->chunk.memblock);
1169 pa_memchunk_reset(&m->chunk);
1172 pa_sink_input_unref(m->userdata);
1179 /* Now drop references to entries that are included in the
1180 * pa_mix_info array but don't exist anymore */
1182 if (n_unreffed < n) {
1183 for (; n > 0; info++, n--) {
1185 pa_sink_input_unref(info->userdata);
1186 if (info->chunk.memblock)
1187 pa_memblock_unref(info->chunk.memblock);
1191 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1192 pa_source_post(s->monitor_source, result);
1195 /* Called from IO thread context */
1196 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1197 pa_mix_info info[MAX_MIX_CHANNELS];
1199 size_t block_size_max;
1201 pa_sink_assert_ref(s);
1202 pa_sink_assert_io_context(s);
1203 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1204 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1207 pa_assert(!s->thread_info.rewind_requested);
1208 pa_assert(s->thread_info.rewind_nbytes == 0);
1210 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1211 result->memblock = pa_memblock_ref(s->silence.memblock);
1212 result->index = s->silence.index;
1213 result->length = PA_MIN(s->silence.length, length);
1220 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1222 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1223 if (length > block_size_max)
1224 length = pa_frame_align(block_size_max, &s->sample_spec);
1226 pa_assert(length > 0);
1228 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1232 *result = s->silence;
1233 pa_memblock_ref(result->memblock);
1235 if (result->length > length)
1236 result->length = length;
1238 } else if (n == 1) {
1241 *result = info[0].chunk;
1242 pa_memblock_ref(result->memblock);
1244 if (result->length > length)
1245 result->length = length;
1247 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1249 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1250 pa_memblock_unref(result->memblock);
1251 pa_silence_memchunk_get(&s->core->silence_cache,
1256 } else if (!pa_cvolume_is_norm(&volume)) {
1257 pa_memchunk_make_writable(result, 0);
1258 pa_volume_memchunk(result, &s->sample_spec, &volume);
1262 result->memblock = pa_memblock_new(s->core->mempool, length);
1264 ptr = pa_memblock_acquire(result->memblock);
1265 result->length = pa_mix(info, n,
1268 &s->thread_info.soft_volume,
1269 s->thread_info.soft_muted);
1270 pa_memblock_release(result->memblock);
1275 inputs_drop(s, info, n, result);
1280 /* Called from IO thread context */
1281 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1282 pa_mix_info info[MAX_MIX_CHANNELS];
1284 size_t length, block_size_max;
1286 pa_sink_assert_ref(s);
1287 pa_sink_assert_io_context(s);
1288 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1290 pa_assert(target->memblock);
1291 pa_assert(target->length > 0);
1292 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1294 pa_assert(!s->thread_info.rewind_requested);
1295 pa_assert(s->thread_info.rewind_nbytes == 0);
1297 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1298 pa_silence_memchunk(target, &s->sample_spec);
1304 length = target->length;
1305 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1306 if (length > block_size_max)
1307 length = pa_frame_align(block_size_max, &s->sample_spec);
1309 pa_assert(length > 0);
1311 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1314 if (target->length > length)
1315 target->length = length;
1317 pa_silence_memchunk(target, &s->sample_spec);
1318 } else if (n == 1) {
1321 if (target->length > length)
1322 target->length = length;
1324 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1326 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1327 pa_silence_memchunk(target, &s->sample_spec);
1331 vchunk = info[0].chunk;
1332 pa_memblock_ref(vchunk.memblock);
1334 if (vchunk.length > length)
1335 vchunk.length = length;
1337 if (!pa_cvolume_is_norm(&volume)) {
1338 pa_memchunk_make_writable(&vchunk, 0);
1339 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1342 pa_memchunk_memcpy(target, &vchunk);
1343 pa_memblock_unref(vchunk.memblock);
1349 ptr = pa_memblock_acquire(target->memblock);
1351 target->length = pa_mix(info, n,
1352 (uint8_t*) ptr + target->index, length,
1354 &s->thread_info.soft_volume,
1355 s->thread_info.soft_muted);
1357 pa_memblock_release(target->memblock);
1360 inputs_drop(s, info, n, target);
1365 /* Called from IO thread context */
1366 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1370 pa_sink_assert_ref(s);
1371 pa_sink_assert_io_context(s);
1372 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1374 pa_assert(target->memblock);
1375 pa_assert(target->length > 0);
1376 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1378 pa_assert(!s->thread_info.rewind_requested);
1379 pa_assert(s->thread_info.rewind_nbytes == 0);
1381 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1382 pa_silence_memchunk(target, &s->sample_spec);
1395 pa_sink_render_into(s, &chunk);
1404 /* Called from IO thread context */
1405 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1406 pa_sink_assert_ref(s);
1407 pa_sink_assert_io_context(s);
1408 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1409 pa_assert(length > 0);
1410 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1413 pa_assert(!s->thread_info.rewind_requested);
1414 pa_assert(s->thread_info.rewind_nbytes == 0);
1418 pa_sink_render(s, length, result);
1420 if (result->length < length) {
1423 pa_memchunk_make_writable(result, length);
1425 chunk.memblock = result->memblock;
1426 chunk.index = result->index + result->length;
1427 chunk.length = length - result->length;
1429 pa_sink_render_into_full(s, &chunk);
1431 result->length = length;
1437 /* Called from main thread */
1438 int pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1440 pa_sample_spec desired_spec;
1441 uint32_t default_rate = s->default_sample_rate;
1442 uint32_t alternate_rate = s->alternate_sample_rate;
1445 bool default_rate_is_usable = false;
1446 bool alternate_rate_is_usable = false;
1447 bool avoid_resampling = s->core->avoid_resampling;
1449 /* We currently only try to reconfigure the sample rate */
1451 if (pa_sample_spec_equal(spec, &s->sample_spec))
1454 if (!s->reconfigure)
1457 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1458 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1462 if (PA_SINK_IS_RUNNING(s->state)) {
1463 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1464 s->sample_spec.rate);
1468 if (s->monitor_source) {
1469 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1470 pa_log_info("Cannot update rate, monitor source is RUNNING");
1475 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1478 desired_spec = s->sample_spec;
1481 /* We have to try to use the sink input rate */
1482 desired_spec.rate = spec->rate;
1484 } else if (avoid_resampling && (spec->rate >= default_rate || spec->rate >= alternate_rate)) {
1485 /* We just try to set the sink input's sample rate if it's not too low */
1486 desired_spec.rate = spec->rate;
1488 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1489 /* We can directly try to use this rate */
1490 desired_spec.rate = spec->rate;
1493 /* See if we can pick a rate that results in less resampling effort */
1494 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1495 default_rate_is_usable = true;
1496 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1497 default_rate_is_usable = true;
1498 if (alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1499 alternate_rate_is_usable = true;
1500 if (alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1501 alternate_rate_is_usable = true;
1503 if (alternate_rate_is_usable && !default_rate_is_usable)
1504 desired_spec.rate = alternate_rate;
1506 desired_spec.rate = default_rate;
1509 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1512 if (!passthrough && pa_sink_used_by(s) > 0)
1515 pa_log_debug("Suspending sink %s due to changing format.", s->name);
1516 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1518 if (s->reconfigure(s, &desired_spec, passthrough) >= 0) {
1519 /* update monitor source as well */
1520 if (s->monitor_source && !passthrough)
1521 pa_source_reconfigure(s->monitor_source, &desired_spec, false);
1522 pa_log_info("Changed format successfully");
1524 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1525 if (i->state == PA_SINK_INPUT_CORKED)
1526 pa_sink_input_update_rate(i);
1532 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1537 /* Called from main thread */
1538 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1541 pa_sink_assert_ref(s);
1542 pa_assert_ctl_context();
1543 pa_assert(PA_SINK_IS_LINKED(s->state));
1545 /* The returned value is supposed to be in the time domain of the sound card! */
1547 if (s->state == PA_SINK_SUSPENDED)
1550 if (!(s->flags & PA_SINK_LATENCY))
1553 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1555 /* the return value is unsigned, so check that the offset can be added to usec without
1557 if (-s->port_latency_offset <= usec)
1558 usec += s->port_latency_offset;
1562 return (pa_usec_t)usec;
1565 /* Called from IO thread */
1566 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1570 pa_sink_assert_ref(s);
1571 pa_sink_assert_io_context(s);
1572 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1574 /* The returned value is supposed to be in the time domain of the sound card! */
1576 if (s->thread_info.state == PA_SINK_SUSPENDED)
1579 if (!(s->flags & PA_SINK_LATENCY))
1582 o = PA_MSGOBJECT(s);
1584 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1586 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1588 /* If allow_negative is false, the call should only return positive values, */
1589 usec += s->thread_info.port_latency_offset;
1590 if (!allow_negative && usec < 0)
1596 /* Called from the main thread (and also from the IO thread while the main
1597 * thread is waiting).
1599 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1600 * set. Instead, flat volume mode is detected by checking whether the root sink
1601 * has the flag set. */
1602 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1603 pa_sink_assert_ref(s);
1605 s = pa_sink_get_master(s);
1608 return (s->flags & PA_SINK_FLAT_VOLUME);
1613 /* Called from the main thread (and also from the IO thread while the main
1614 * thread is waiting). */
1615 pa_sink *pa_sink_get_master(pa_sink *s) {
1616 pa_sink_assert_ref(s);
1618 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1619 if (PA_UNLIKELY(!s->input_to_master))
1622 s = s->input_to_master->sink;
1628 /* Called from main context */
1629 bool pa_sink_is_filter(pa_sink *s) {
1630 pa_sink_assert_ref(s);
1632 return (s->input_to_master != NULL);
1635 /* Called from main context */
1636 bool pa_sink_is_passthrough(pa_sink *s) {
1637 pa_sink_input *alt_i;
1640 pa_sink_assert_ref(s);
1642 /* one and only one PASSTHROUGH input can possibly be connected */
1643 if (pa_idxset_size(s->inputs) == 1) {
1644 alt_i = pa_idxset_first(s->inputs, &idx);
1646 if (pa_sink_input_is_passthrough(alt_i))
1653 /* Called from main context */
1654 void pa_sink_enter_passthrough(pa_sink *s) {
1657 /* The sink implementation is reconfigured for passthrough in
1658 * pa_sink_reconfigure(). This function sets the PA core objects to
1659 * passthrough mode. */
1661 /* disable the monitor in passthrough mode */
1662 if (s->monitor_source) {
1663 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1664 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1667 /* set the volume to NORM */
1668 s->saved_volume = *pa_sink_get_volume(s, true);
1669 s->saved_save_volume = s->save_volume;
1671 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1672 pa_sink_set_volume(s, &volume, true, false);
1674 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1677 /* Called from main context */
1678 void pa_sink_leave_passthrough(pa_sink *s) {
1679 /* Unsuspend monitor */
1680 if (s->monitor_source) {
1681 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1682 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1685 /* Restore sink volume to what it was before we entered passthrough mode */
1686 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1688 pa_cvolume_init(&s->saved_volume);
1689 s->saved_save_volume = false;
1693 /* Called from main context. */
1694 static void compute_reference_ratio(pa_sink_input *i) {
1696 pa_cvolume remapped;
1700 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1703 * Calculates the reference ratio from the sink's reference
1704 * volume. This basically calculates:
1706 * i->reference_ratio = i->volume / i->sink->reference_volume
1709 remapped = i->sink->reference_volume;
1710 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1712 ratio = i->reference_ratio;
1714 for (c = 0; c < i->sample_spec.channels; c++) {
1716 /* We don't update when the sink volume is 0 anyway */
1717 if (remapped.values[c] <= PA_VOLUME_MUTED)
1720 /* Don't update the reference ratio unless necessary */
1721 if (pa_sw_volume_multiply(
1723 remapped.values[c]) == i->volume.values[c])
1726 ratio.values[c] = pa_sw_volume_divide(
1727 i->volume.values[c],
1728 remapped.values[c]);
1731 pa_sink_input_set_reference_ratio(i, &ratio);
1734 /* Called from main context. Only called for the root sink in volume sharing
1735 * cases, except for internal recursive calls. */
1736 static void compute_reference_ratios(pa_sink *s) {
1740 pa_sink_assert_ref(s);
1741 pa_assert_ctl_context();
1742 pa_assert(PA_SINK_IS_LINKED(s->state));
1743 pa_assert(pa_sink_flat_volume_enabled(s));
1745 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1746 compute_reference_ratio(i);
1748 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1749 && PA_SINK_IS_LINKED(i->origin_sink->state))
1750 compute_reference_ratios(i->origin_sink);
1754 /* Called from main context. Only called for the root sink in volume sharing
1755 * cases, except for internal recursive calls. */
1756 static void compute_real_ratios(pa_sink *s) {
1760 pa_sink_assert_ref(s);
1761 pa_assert_ctl_context();
1762 pa_assert(PA_SINK_IS_LINKED(s->state));
1763 pa_assert(pa_sink_flat_volume_enabled(s));
1765 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1767 pa_cvolume remapped;
1769 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1770 /* The origin sink uses volume sharing, so this input's real ratio
1771 * is handled as a special case - the real ratio must be 0 dB, and
1772 * as a result i->soft_volume must equal i->volume_factor. */
1773 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1774 i->soft_volume = i->volume_factor;
1776 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1777 compute_real_ratios(i->origin_sink);
1783 * This basically calculates:
1785 * i->real_ratio := i->volume / s->real_volume
1786 * i->soft_volume := i->real_ratio * i->volume_factor
1789 remapped = s->real_volume;
1790 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1792 i->real_ratio.channels = i->sample_spec.channels;
1793 i->soft_volume.channels = i->sample_spec.channels;
1795 for (c = 0; c < i->sample_spec.channels; c++) {
1797 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1798 /* We leave i->real_ratio untouched */
1799 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1803 /* Don't lose accuracy unless necessary */
1804 if (pa_sw_volume_multiply(
1805 i->real_ratio.values[c],
1806 remapped.values[c]) != i->volume.values[c])
1808 i->real_ratio.values[c] = pa_sw_volume_divide(
1809 i->volume.values[c],
1810 remapped.values[c]);
1812 i->soft_volume.values[c] = pa_sw_volume_multiply(
1813 i->real_ratio.values[c],
1814 i->volume_factor.values[c]);
1817 /* We don't copy the soft_volume to the thread_info data
1818 * here. That must be done by the caller */
1822 static pa_cvolume *cvolume_remap_minimal_impact(
1824 const pa_cvolume *template,
1825 const pa_channel_map *from,
1826 const pa_channel_map *to) {
1831 pa_assert(template);
1834 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1835 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1837 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1838 * mapping from sink input to sink volumes:
1840 * If template is a possible remapping from v it is used instead
1841 * of remapping anew.
1843 * If the channel maps don't match we set an all-channel volume on
1844 * the sink to ensure that changing a volume on one stream has no
1845 * effect that cannot be compensated for in another stream that
1846 * does not have the same channel map as the sink. */
1848 if (pa_channel_map_equal(from, to))
1852 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1857 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1861 /* Called from main thread. Only called for the root sink in volume sharing
1862 * cases, except for internal recursive calls. */
1863 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1867 pa_sink_assert_ref(s);
1868 pa_assert(max_volume);
1869 pa_assert(channel_map);
1870 pa_assert(pa_sink_flat_volume_enabled(s));
1872 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1873 pa_cvolume remapped;
1875 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1876 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1877 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1879 /* Ignore this input. The origin sink uses volume sharing, so this
1880 * input's volume will be set to be equal to the root sink's real
1881 * volume. Obviously this input's current volume must not then
1882 * affect what the root sink's real volume will be. */
1886 remapped = i->volume;
1887 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1888 pa_cvolume_merge(max_volume, max_volume, &remapped);
1892 /* Called from main thread. Only called for the root sink in volume sharing
1893 * cases, except for internal recursive calls. */
1894 static bool has_inputs(pa_sink *s) {
1898 pa_sink_assert_ref(s);
1900 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1901 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1908 /* Called from main thread. Only called for the root sink in volume sharing
1909 * cases, except for internal recursive calls. */
1910 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1914 pa_sink_assert_ref(s);
1915 pa_assert(new_volume);
1916 pa_assert(channel_map);
1918 s->real_volume = *new_volume;
1919 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1921 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1922 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1923 if (pa_sink_flat_volume_enabled(s)) {
1924 pa_cvolume new_input_volume;
1926 /* Follow the root sink's real volume. */
1927 new_input_volume = *new_volume;
1928 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1929 pa_sink_input_set_volume_direct(i, &new_input_volume);
1930 compute_reference_ratio(i);
1933 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1934 update_real_volume(i->origin_sink, new_volume, channel_map);
1939 /* Called from main thread. Only called for the root sink in shared volume
1941 static void compute_real_volume(pa_sink *s) {
1942 pa_sink_assert_ref(s);
1943 pa_assert_ctl_context();
1944 pa_assert(PA_SINK_IS_LINKED(s->state));
1945 pa_assert(pa_sink_flat_volume_enabled(s));
1946 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1948 /* This determines the maximum volume of all streams and sets
1949 * s->real_volume accordingly. */
1951 if (!has_inputs(s)) {
1952 /* In the special case that we have no sink inputs we leave the
1953 * volume unmodified. */
1954 update_real_volume(s, &s->reference_volume, &s->channel_map);
1958 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1960 /* First let's determine the new maximum volume of all inputs
1961 * connected to this sink */
1962 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1963 update_real_volume(s, &s->real_volume, &s->channel_map);
1965 /* Then, let's update the real ratios/soft volumes of all inputs
1966 * connected to this sink */
1967 compute_real_ratios(s);
1970 /* Called from main thread. Only called for the root sink in shared volume
1971 * cases, except for internal recursive calls. */
1972 static void propagate_reference_volume(pa_sink *s) {
1976 pa_sink_assert_ref(s);
1977 pa_assert_ctl_context();
1978 pa_assert(PA_SINK_IS_LINKED(s->state));
1979 pa_assert(pa_sink_flat_volume_enabled(s));
1981 /* This is called whenever the sink volume changes that is not
1982 * caused by a sink input volume change. We need to fix up the
1983 * sink input volumes accordingly */
1985 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1986 pa_cvolume new_volume;
1988 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1989 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1990 propagate_reference_volume(i->origin_sink);
1992 /* Since the origin sink uses volume sharing, this input's volume
1993 * needs to be updated to match the root sink's real volume, but
1994 * that will be done later in update_real_volume(). */
1998 /* This basically calculates:
2000 * i->volume := s->reference_volume * i->reference_ratio */
2002 new_volume = s->reference_volume;
2003 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2004 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2005 pa_sink_input_set_volume_direct(i, &new_volume);
2009 /* Called from main thread. Only called for the root sink in volume sharing
2010 * cases, except for internal recursive calls. The return value indicates
2011 * whether any reference volume actually changed. */
2012 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2014 bool reference_volume_changed;
2018 pa_sink_assert_ref(s);
2019 pa_assert(PA_SINK_IS_LINKED(s->state));
2021 pa_assert(channel_map);
2022 pa_assert(pa_cvolume_valid(v));
2025 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2027 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2028 pa_sink_set_reference_volume_direct(s, &volume);
2030 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2032 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2033 /* If the root sink's volume doesn't change, then there can't be any
2034 * changes in the other sinks in the sink tree either.
2036 * It's probably theoretically possible that even if the root sink's
2037 * volume changes slightly, some filter sink doesn't change its volume
2038 * due to rounding errors. If that happens, we still want to propagate
2039 * the changed root sink volume to the sinks connected to the
2040 * intermediate sink that didn't change its volume. This theoretical
2041 * possibility is the reason why we have that !(s->flags &
2042 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2043 * notice even if we returned here false always if
2044 * reference_volume_changed is false. */
2047 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2048 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2049 && PA_SINK_IS_LINKED(i->origin_sink->state))
2050 update_reference_volume(i->origin_sink, v, channel_map, false);
2056 /* Called from main thread */
2057 void pa_sink_set_volume(
2059 const pa_cvolume *volume,
2063 pa_cvolume new_reference_volume;
2066 pa_sink_assert_ref(s);
2067 pa_assert_ctl_context();
2068 pa_assert(PA_SINK_IS_LINKED(s->state));
2069 pa_assert(!volume || pa_cvolume_valid(volume));
2070 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2071 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2073 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2074 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2075 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2076 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2080 /* In case of volume sharing, the volume is set for the root sink first,
2081 * from which it's then propagated to the sharing sinks. */
2082 root_sink = pa_sink_get_master(s);
2084 if (PA_UNLIKELY(!root_sink))
2087 /* As a special exception we accept mono volumes on all sinks --
2088 * even on those with more complex channel maps */
2091 if (pa_cvolume_compatible(volume, &s->sample_spec))
2092 new_reference_volume = *volume;
2094 new_reference_volume = s->reference_volume;
2095 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2098 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2100 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2101 if (pa_sink_flat_volume_enabled(root_sink)) {
2102 /* OK, propagate this volume change back to the inputs */
2103 propagate_reference_volume(root_sink);
2105 /* And now recalculate the real volume */
2106 compute_real_volume(root_sink);
2108 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2112 /* If volume is NULL we synchronize the sink's real and
2113 * reference volumes with the stream volumes. */
2115 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2117 /* Ok, let's determine the new real volume */
2118 compute_real_volume(root_sink);
2120 /* Let's 'push' the reference volume if necessary */
2121 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2122 /* If the sink and its root don't have the same number of channels, we need to remap */
2123 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2124 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2125 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2127 /* Now that the reference volume is updated, we can update the streams'
2128 * reference ratios. */
2129 compute_reference_ratios(root_sink);
2132 if (root_sink->set_volume) {
2133 /* If we have a function set_volume(), then we do not apply a
2134 * soft volume by default. However, set_volume() is free to
2135 * apply one to root_sink->soft_volume */
2137 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2138 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2139 root_sink->set_volume(root_sink);
2142 /* If we have no function set_volume(), then the soft volume
2143 * becomes the real volume */
2144 root_sink->soft_volume = root_sink->real_volume;
2146 /* This tells the sink that soft volume and/or real volume changed */
2148 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2151 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2152 * Only to be called by sink implementor */
2153 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2155 pa_sink_assert_ref(s);
2156 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2158 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2159 pa_sink_assert_io_context(s);
2161 pa_assert_ctl_context();
2164 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2166 s->soft_volume = *volume;
2168 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2169 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2171 s->thread_info.soft_volume = s->soft_volume;
2174 /* Called from the main thread. Only called for the root sink in volume sharing
2175 * cases, except for internal recursive calls. */
2176 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2180 pa_sink_assert_ref(s);
2181 pa_assert(old_real_volume);
2182 pa_assert_ctl_context();
2183 pa_assert(PA_SINK_IS_LINKED(s->state));
2185 /* This is called when the hardware's real volume changes due to
2186 * some external event. We copy the real volume into our
2187 * reference volume and then rebuild the stream volumes based on
2188 * i->real_ratio which should stay fixed. */
2190 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2191 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2194 /* 1. Make the real volume the reference volume */
2195 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2198 if (pa_sink_flat_volume_enabled(s)) {
2200 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2201 pa_cvolume new_volume;
2203 /* 2. Since the sink's reference and real volumes are equal
2204 * now our ratios should be too. */
2205 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2207 /* 3. Recalculate the new stream reference volume based on the
2208 * reference ratio and the sink's reference volume.
2210 * This basically calculates:
2212 * i->volume = s->reference_volume * i->reference_ratio
2214 * This is identical to propagate_reference_volume() */
2215 new_volume = s->reference_volume;
2216 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2217 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2218 pa_sink_input_set_volume_direct(i, &new_volume);
2220 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2221 && PA_SINK_IS_LINKED(i->origin_sink->state))
2222 propagate_real_volume(i->origin_sink, old_real_volume);
2226 /* Something got changed in the hardware. It probably makes sense
2227 * to save changed hw settings given that hw volume changes not
2228 * triggered by PA are almost certainly done by the user. */
2229 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2230 s->save_volume = true;
2233 /* Called from io thread */
2234 void pa_sink_update_volume_and_mute(pa_sink *s) {
2236 pa_sink_assert_io_context(s);
2238 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2241 /* Called from main thread */
2242 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2243 pa_sink_assert_ref(s);
2244 pa_assert_ctl_context();
2245 pa_assert(PA_SINK_IS_LINKED(s->state));
2247 if (s->refresh_volume || force_refresh) {
2248 struct pa_cvolume old_real_volume;
2250 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2252 old_real_volume = s->real_volume;
2254 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2257 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2259 update_real_volume(s, &s->real_volume, &s->channel_map);
2260 propagate_real_volume(s, &old_real_volume);
2263 return &s->reference_volume;
2266 /* Called from main thread. In volume sharing cases, only the root sink may
2268 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2269 pa_cvolume old_real_volume;
2271 pa_sink_assert_ref(s);
2272 pa_assert_ctl_context();
2273 pa_assert(PA_SINK_IS_LINKED(s->state));
2274 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2276 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2278 old_real_volume = s->real_volume;
2279 update_real_volume(s, new_real_volume, &s->channel_map);
2280 propagate_real_volume(s, &old_real_volume);
2283 /* Called from main thread */
2284 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2287 pa_sink_assert_ref(s);
2288 pa_assert_ctl_context();
2290 old_muted = s->muted;
2292 if (mute == old_muted) {
2293 s->save_muted |= save;
2298 s->save_muted = save;
2300 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2301 s->set_mute_in_progress = true;
2303 s->set_mute_in_progress = false;
2306 if (!PA_SINK_IS_LINKED(s->state))
2309 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2310 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2311 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2312 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2315 /* Called from main thread */
2316 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2318 pa_sink_assert_ref(s);
2319 pa_assert_ctl_context();
2320 pa_assert(PA_SINK_IS_LINKED(s->state));
2322 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2325 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2326 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2327 pa_sink_mute_changed(s, mute);
2329 if (s->get_mute(s, &mute) >= 0)
2330 pa_sink_mute_changed(s, mute);
2337 /* Called from main thread */
2338 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2339 pa_sink_assert_ref(s);
2340 pa_assert_ctl_context();
2341 pa_assert(PA_SINK_IS_LINKED(s->state));
2343 if (s->set_mute_in_progress)
2346 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2347 * but we must have this here also, because the save parameter of
2348 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2349 * the mute state when it shouldn't be saved). */
2350 if (new_muted == s->muted)
2353 pa_sink_set_mute(s, new_muted, true);
2356 /* Called from main thread */
2357 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2358 pa_sink_assert_ref(s);
2359 pa_assert_ctl_context();
2362 pa_proplist_update(s->proplist, mode, p);
2364 if (PA_SINK_IS_LINKED(s->state)) {
2365 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2366 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2372 /* Called from main thread */
2373 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2374 void pa_sink_set_description(pa_sink *s, const char *description) {
2376 pa_sink_assert_ref(s);
2377 pa_assert_ctl_context();
2379 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2382 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2384 if (old && description && pa_streq(old, description))
2388 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2390 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2392 if (s->monitor_source) {
2395 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2396 pa_source_set_description(s->monitor_source, n);
2400 if (PA_SINK_IS_LINKED(s->state)) {
2401 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2402 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2406 /* Called from main thread */
2407 unsigned pa_sink_linked_by(pa_sink *s) {
2410 pa_sink_assert_ref(s);
2411 pa_assert_ctl_context();
2412 pa_assert(PA_SINK_IS_LINKED(s->state));
2414 ret = pa_idxset_size(s->inputs);
2416 /* We add in the number of streams connected to us here. Please
2417 * note the asymmetry to pa_sink_used_by()! */
2419 if (s->monitor_source)
2420 ret += pa_source_linked_by(s->monitor_source);
2425 /* Called from main thread */
2426 unsigned pa_sink_used_by(pa_sink *s) {
2429 pa_sink_assert_ref(s);
2430 pa_assert_ctl_context();
2431 pa_assert(PA_SINK_IS_LINKED(s->state));
2433 ret = pa_idxset_size(s->inputs);
2434 pa_assert(ret >= s->n_corked);
2436 /* Streams connected to our monitor source do not matter for
2437 * pa_sink_used_by()!.*/
2439 return ret - s->n_corked;
2442 /* Called from main thread */
2443 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2448 pa_sink_assert_ref(s);
2449 pa_assert_ctl_context();
2451 if (!PA_SINK_IS_LINKED(s->state))
2456 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2457 pa_sink_input_state_t st;
2459 if (i == ignore_input)
2462 st = pa_sink_input_get_state(i);
2464 /* We do not assert here. It is perfectly valid for a sink input to
2465 * be in the INIT state (i.e. created, marked done but not yet put)
2466 * and we should not care if it's unlinked as it won't contribute
2467 * towards our busy status.
2469 if (!PA_SINK_INPUT_IS_LINKED(st))
2472 if (st == PA_SINK_INPUT_CORKED)
2475 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2481 if (s->monitor_source)
2482 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2487 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2489 case PA_SINK_INIT: return "INIT";
2490 case PA_SINK_IDLE: return "IDLE";
2491 case PA_SINK_RUNNING: return "RUNNING";
2492 case PA_SINK_SUSPENDED: return "SUSPENDED";
2493 case PA_SINK_UNLINKED: return "UNLINKED";
2494 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2497 pa_assert_not_reached();
2500 /* Called from the IO thread */
2501 static void sync_input_volumes_within_thread(pa_sink *s) {
2505 pa_sink_assert_ref(s);
2506 pa_sink_assert_io_context(s);
2508 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2509 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2512 i->thread_info.soft_volume = i->soft_volume;
2513 pa_sink_input_request_rewind(i, 0, true, false, false);
2517 /* Called from the IO thread. Only called for the root sink in volume sharing
2518 * cases, except for internal recursive calls. */
2519 static void set_shared_volume_within_thread(pa_sink *s) {
2520 pa_sink_input *i = NULL;
2523 pa_sink_assert_ref(s);
2525 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2527 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2528 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2529 set_shared_volume_within_thread(i->origin_sink);
2533 /* Called from IO thread, except when it is not */
2534 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2535 pa_sink *s = PA_SINK(o);
2536 pa_sink_assert_ref(s);
2538 switch ((pa_sink_message_t) code) {
2540 case PA_SINK_MESSAGE_ADD_INPUT: {
2541 pa_sink_input *i = PA_SINK_INPUT(userdata);
2543 /* If you change anything here, make sure to change the
2544 * sink input handling a few lines down at
2545 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2547 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2549 /* Since the caller sleeps in pa_sink_input_put(), we can
2550 * safely access data outside of thread_info even though
2553 if ((i->thread_info.sync_prev = i->sync_prev)) {
2554 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2555 pa_assert(i->sync_prev->sync_next == i);
2556 i->thread_info.sync_prev->thread_info.sync_next = i;
2559 if ((i->thread_info.sync_next = i->sync_next)) {
2560 pa_assert(i->sink == i->thread_info.sync_next->sink);
2561 pa_assert(i->sync_next->sync_prev == i);
2562 i->thread_info.sync_next->thread_info.sync_prev = i;
2565 pa_sink_input_attach(i);
2567 pa_sink_input_set_state_within_thread(i, i->state);
2569 /* The requested latency of the sink input needs to be fixed up and
2570 * then configured on the sink. If this causes the sink latency to
2571 * go down, the sink implementor is responsible for doing a rewind
2572 * in the update_requested_latency() callback to ensure that the
2573 * sink buffer doesn't contain more data than what the new latency
2576 * XXX: Does it really make sense to push this responsibility to
2577 * the sink implementors? Wouldn't it be better to do it once in
2578 * the core than many times in the modules? */
2580 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2581 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2583 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2584 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2586 /* We don't rewind here automatically. This is left to the
2587 * sink input implementor because some sink inputs need a
2588 * slow start, i.e. need some time to buffer client
2589 * samples before beginning streaming.
2591 * XXX: Does it really make sense to push this functionality to
2592 * the sink implementors? Wouldn't it be better to do it once in
2593 * the core than many times in the modules? */
2595 /* In flat volume mode we need to update the volume as
2597 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2600 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2601 pa_sink_input *i = PA_SINK_INPUT(userdata);
2603 /* If you change anything here, make sure to change the
2604 * sink input handling a few lines down at
2605 * PA_SINK_MESSAGE_START_MOVE, too. */
2607 pa_sink_input_detach(i);
2609 pa_sink_input_set_state_within_thread(i, i->state);
2611 /* Since the caller sleeps in pa_sink_input_unlink(),
2612 * we can safely access data outside of thread_info even
2613 * though it is mutable */
2615 pa_assert(!i->sync_prev);
2616 pa_assert(!i->sync_next);
2618 if (i->thread_info.sync_prev) {
2619 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2620 i->thread_info.sync_prev = NULL;
2623 if (i->thread_info.sync_next) {
2624 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2625 i->thread_info.sync_next = NULL;
2628 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2629 pa_sink_invalidate_requested_latency(s, true);
2630 pa_sink_request_rewind(s, (size_t) -1);
2632 /* In flat volume mode we need to update the volume as
2634 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2637 case PA_SINK_MESSAGE_START_MOVE: {
2638 pa_sink_input *i = PA_SINK_INPUT(userdata);
2640 /* We don't support moving synchronized streams. */
2641 pa_assert(!i->sync_prev);
2642 pa_assert(!i->sync_next);
2643 pa_assert(!i->thread_info.sync_next);
2644 pa_assert(!i->thread_info.sync_prev);
2646 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2648 size_t sink_nbytes, total_nbytes;
2650 /* The old sink probably has some audio from this
2651 * stream in its buffer. We want to "take it back" as
2652 * much as possible and play it to the new sink. We
2653 * don't know at this point how much the old sink can
2654 * rewind. We have to pick something, and that
2655 * something is the full latency of the old sink here.
2656 * So we rewind the stream buffer by the sink latency
2657 * amount, which may be more than what we should
2658 * rewind. This can result in a chunk of audio being
2659 * played both to the old sink and the new sink.
2661 * FIXME: Fix this code so that we don't have to make
2662 * guesses about how much the sink will actually be
2663 * able to rewind. If someone comes up with a solution
2664 * for this, something to note is that the part of the
2665 * latency that the old sink couldn't rewind should
2666 * ideally be compensated after the stream has moved
2667 * to the new sink by adding silence. The new sink
2668 * most likely can't start playing the moved stream
2669 * immediately, and that gap should be removed from
2670 * the "compensation silence" (at least at the time of
2671 * writing this, the move finish code will actually
2672 * already take care of dropping the new sink's
2673 * unrewindable latency, so taking into account the
2674 * unrewindable latency of the old sink is the only
2677 * The render_memblockq contents are discarded,
2678 * because when the sink changes, the format of the
2679 * audio stored in the render_memblockq may change
2680 * too, making the stored audio invalid. FIXME:
2681 * However, the read and write indices are moved back
2682 * the same amount, so if they are not the same now,
2683 * they won't be the same after the rewind either. If
2684 * the write index of the render_memblockq is ahead of
2685 * the read index, then the render_memblockq will feed
2686 * the new sink some silence first, which it shouldn't
2687 * do. The write index should be flushed to be the
2688 * same as the read index. */
2690 /* Get the latency of the sink */
2691 usec = pa_sink_get_latency_within_thread(s, false);
2692 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2693 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2695 if (total_nbytes > 0) {
2696 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2697 i->thread_info.rewrite_flush = true;
2698 pa_sink_input_process_rewind(i, sink_nbytes);
2702 pa_sink_input_detach(i);
2704 /* Let's remove the sink input ...*/
2705 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2707 pa_sink_invalidate_requested_latency(s, true);
2709 pa_log_debug("Requesting rewind due to started move");
2710 pa_sink_request_rewind(s, (size_t) -1);
2712 /* In flat volume mode we need to update the volume as
2714 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2717 case PA_SINK_MESSAGE_FINISH_MOVE: {
2718 pa_sink_input *i = PA_SINK_INPUT(userdata);
2720 /* We don't support moving synchronized streams. */
2721 pa_assert(!i->sync_prev);
2722 pa_assert(!i->sync_next);
2723 pa_assert(!i->thread_info.sync_next);
2724 pa_assert(!i->thread_info.sync_prev);
2726 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2728 pa_sink_input_attach(i);
2730 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2734 /* In the ideal case the new sink would start playing
2735 * the stream immediately. That requires the sink to
2736 * be able to rewind all of its latency, which usually
2737 * isn't possible, so there will probably be some gap
2738 * before the moved stream becomes audible. We then
2739 * have two possibilities: 1) start playing the stream
2740 * from where it is now, or 2) drop the unrewindable
2741 * latency of the sink from the stream. With option 1
2742 * we won't lose any audio but the stream will have a
2743 * pause. With option 2 we may lose some audio but the
2744 * stream time will be somewhat in sync with the wall
2745 * clock. Lennart seems to have chosen option 2 (one
2746 * of the reasons might have been that option 1 is
2747 * actually much harder to implement), so we drop the
2748 * latency of the new sink from the moved stream and
2749 * hope that the sink will undo most of that in the
2752 /* Get the latency of the sink */
2753 usec = pa_sink_get_latency_within_thread(s, false);
2754 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2757 pa_sink_input_drop(i, nbytes);
2759 pa_log_debug("Requesting rewind due to finished move");
2760 pa_sink_request_rewind(s, nbytes);
2763 /* Updating the requested sink latency has to be done
2764 * after the sink rewind request, not before, because
2765 * otherwise the sink may limit the rewind amount
2768 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2769 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2771 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2772 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2774 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2777 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2778 pa_sink *root_sink = pa_sink_get_master(s);
2780 if (PA_LIKELY(root_sink))
2781 set_shared_volume_within_thread(root_sink);
2786 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2788 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2790 pa_sink_volume_change_push(s);
2792 /* Fall through ... */
2794 case PA_SINK_MESSAGE_SET_VOLUME:
2796 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2797 s->thread_info.soft_volume = s->soft_volume;
2798 pa_sink_request_rewind(s, (size_t) -1);
2801 /* Fall through ... */
2803 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2804 sync_input_volumes_within_thread(s);
2807 case PA_SINK_MESSAGE_GET_VOLUME:
2809 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2811 pa_sink_volume_change_flush(s);
2812 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2815 /* In case sink implementor reset SW volume. */
2816 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2817 s->thread_info.soft_volume = s->soft_volume;
2818 pa_sink_request_rewind(s, (size_t) -1);
2823 case PA_SINK_MESSAGE_SET_MUTE:
2825 if (s->thread_info.soft_muted != s->muted) {
2826 s->thread_info.soft_muted = s->muted;
2827 pa_sink_request_rewind(s, (size_t) -1);
2830 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2835 case PA_SINK_MESSAGE_GET_MUTE:
2837 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2838 return s->get_mute(s, userdata);
2842 case PA_SINK_MESSAGE_SET_STATE: {
2843 struct set_state_data *data = userdata;
2844 bool suspend_change =
2845 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(data->state)) ||
2846 (PA_SINK_IS_OPENED(s->thread_info.state) && data->state == PA_SINK_SUSPENDED);
2848 if (s->set_state_in_io_thread) {
2851 if ((r = s->set_state_in_io_thread(s, data->state, data->suspend_cause)) < 0)
2855 s->thread_info.state = data->state;
2857 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2858 s->thread_info.rewind_nbytes = 0;
2859 s->thread_info.rewind_requested = false;
2862 if (suspend_change) {
2866 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2867 if (i->suspend_within_thread)
2868 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2874 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2876 pa_usec_t *usec = userdata;
2877 *usec = pa_sink_get_requested_latency_within_thread(s);
2879 /* Yes, that's right, the IO thread will see -1 when no
2880 * explicit requested latency is configured, the main
2881 * thread will see max_latency */
2882 if (*usec == (pa_usec_t) -1)
2883 *usec = s->thread_info.max_latency;
2888 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2889 pa_usec_t *r = userdata;
2891 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2896 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2897 pa_usec_t *r = userdata;
2899 r[0] = s->thread_info.min_latency;
2900 r[1] = s->thread_info.max_latency;
2905 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2907 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2910 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2912 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2915 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2917 *((size_t*) userdata) = s->thread_info.max_rewind;
2920 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2922 *((size_t*) userdata) = s->thread_info.max_request;
2925 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2927 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2930 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2932 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2935 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2936 /* This message is sent from IO-thread and handled in main thread. */
2937 pa_assert_ctl_context();
2939 /* Make sure we're not messing with main thread when no longer linked */
2940 if (!PA_SINK_IS_LINKED(s->state))
2943 pa_sink_get_volume(s, true);
2944 pa_sink_get_mute(s, true);
2947 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2948 s->thread_info.port_latency_offset = offset;
2951 case PA_SINK_MESSAGE_GET_LATENCY:
2952 case PA_SINK_MESSAGE_MAX:
2959 /* Called from main thread */
2960 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2965 pa_core_assert_ref(c);
2966 pa_assert_ctl_context();
2967 pa_assert(cause != 0);
2969 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2972 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2979 /* Called from IO thread */
2980 void pa_sink_detach_within_thread(pa_sink *s) {
2984 pa_sink_assert_ref(s);
2985 pa_sink_assert_io_context(s);
2986 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2988 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2989 pa_sink_input_detach(i);
2991 if (s->monitor_source)
2992 pa_source_detach_within_thread(s->monitor_source);
2995 /* Called from IO thread */
2996 void pa_sink_attach_within_thread(pa_sink *s) {
3000 pa_sink_assert_ref(s);
3001 pa_sink_assert_io_context(s);
3002 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3004 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3005 pa_sink_input_attach(i);
3007 if (s->monitor_source)
3008 pa_source_attach_within_thread(s->monitor_source);
3011 /* Called from IO thread */
3012 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3013 pa_sink_assert_ref(s);
3014 pa_sink_assert_io_context(s);
3015 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3017 if (nbytes == (size_t) -1)
3018 nbytes = s->thread_info.max_rewind;
3020 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3022 if (s->thread_info.rewind_requested &&
3023 nbytes <= s->thread_info.rewind_nbytes)
3026 s->thread_info.rewind_nbytes = nbytes;
3027 s->thread_info.rewind_requested = true;
3029 if (s->request_rewind)
3030 s->request_rewind(s);
3033 /* Called from IO thread */
3034 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3035 pa_usec_t result = (pa_usec_t) -1;
3038 pa_usec_t monitor_latency;
3040 pa_sink_assert_ref(s);
3041 pa_sink_assert_io_context(s);
3043 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3044 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3046 if (s->thread_info.requested_latency_valid)
3047 return s->thread_info.requested_latency;
3049 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3050 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3051 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3052 result = i->thread_info.requested_sink_latency;
3054 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3056 if (monitor_latency != (pa_usec_t) -1 &&
3057 (result == (pa_usec_t) -1 || result > monitor_latency))
3058 result = monitor_latency;
3060 if (result != (pa_usec_t) -1)
3061 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3063 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3064 /* Only cache if properly initialized */
3065 s->thread_info.requested_latency = result;
3066 s->thread_info.requested_latency_valid = true;
3072 /* Called from main thread */
3073 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3076 pa_sink_assert_ref(s);
3077 pa_assert_ctl_context();
3078 pa_assert(PA_SINK_IS_LINKED(s->state));
3080 if (s->state == PA_SINK_SUSPENDED)
3083 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3088 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3089 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3093 pa_sink_assert_ref(s);
3094 pa_sink_assert_io_context(s);
3096 if (max_rewind == s->thread_info.max_rewind)
3099 s->thread_info.max_rewind = max_rewind;
3101 if (PA_SINK_IS_LINKED(s->thread_info.state))
3102 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3103 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3105 if (s->monitor_source)
3106 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3109 /* Called from main thread */
3110 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3111 pa_sink_assert_ref(s);
3112 pa_assert_ctl_context();
3114 if (PA_SINK_IS_LINKED(s->state))
3115 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3117 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3120 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3121 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3124 pa_sink_assert_ref(s);
3125 pa_sink_assert_io_context(s);
3127 if (max_request == s->thread_info.max_request)
3130 s->thread_info.max_request = max_request;
3132 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3135 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3136 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3140 /* Called from main thread */
3141 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3142 pa_sink_assert_ref(s);
3143 pa_assert_ctl_context();
3145 if (PA_SINK_IS_LINKED(s->state))
3146 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3148 pa_sink_set_max_request_within_thread(s, max_request);
3151 /* Called from IO thread */
3152 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3156 pa_sink_assert_ref(s);
3157 pa_sink_assert_io_context(s);
3159 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3160 s->thread_info.requested_latency_valid = false;
3164 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3166 if (s->update_requested_latency)
3167 s->update_requested_latency(s);
3169 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3170 if (i->update_sink_requested_latency)
3171 i->update_sink_requested_latency(i);
3175 /* Called from main thread */
3176 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3177 pa_sink_assert_ref(s);
3178 pa_assert_ctl_context();
3180 /* min_latency == 0: no limit
3181 * min_latency anything else: specified limit
3183 * Similar for max_latency */
3185 if (min_latency < ABSOLUTE_MIN_LATENCY)
3186 min_latency = ABSOLUTE_MIN_LATENCY;
3188 if (max_latency <= 0 ||
3189 max_latency > ABSOLUTE_MAX_LATENCY)
3190 max_latency = ABSOLUTE_MAX_LATENCY;
3192 pa_assert(min_latency <= max_latency);
3194 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3195 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3196 max_latency == ABSOLUTE_MAX_LATENCY) ||
3197 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3199 if (PA_SINK_IS_LINKED(s->state)) {
3205 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3207 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3210 /* Called from main thread */
3211 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3212 pa_sink_assert_ref(s);
3213 pa_assert_ctl_context();
3214 pa_assert(min_latency);
3215 pa_assert(max_latency);
3217 if (PA_SINK_IS_LINKED(s->state)) {
3218 pa_usec_t r[2] = { 0, 0 };
3220 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3222 *min_latency = r[0];
3223 *max_latency = r[1];
3225 *min_latency = s->thread_info.min_latency;
3226 *max_latency = s->thread_info.max_latency;
3230 /* Called from IO thread */
3231 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3232 pa_sink_assert_ref(s);
3233 pa_sink_assert_io_context(s);
3235 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3236 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3237 pa_assert(min_latency <= max_latency);
3239 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3240 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3241 max_latency == ABSOLUTE_MAX_LATENCY) ||
3242 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3244 if (s->thread_info.min_latency == min_latency &&
3245 s->thread_info.max_latency == max_latency)
3248 s->thread_info.min_latency = min_latency;
3249 s->thread_info.max_latency = max_latency;
3251 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3255 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3256 if (i->update_sink_latency_range)
3257 i->update_sink_latency_range(i);
3260 pa_sink_invalidate_requested_latency(s, false);
3262 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3265 /* Called from main thread */
3266 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3267 pa_sink_assert_ref(s);
3268 pa_assert_ctl_context();
3270 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3271 pa_assert(latency == 0);
3275 if (latency < ABSOLUTE_MIN_LATENCY)
3276 latency = ABSOLUTE_MIN_LATENCY;
3278 if (latency > ABSOLUTE_MAX_LATENCY)
3279 latency = ABSOLUTE_MAX_LATENCY;
3281 if (PA_SINK_IS_LINKED(s->state))
3282 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3284 s->thread_info.fixed_latency = latency;
3286 pa_source_set_fixed_latency(s->monitor_source, latency);
3289 /* Called from main thread */
3290 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3293 pa_sink_assert_ref(s);
3294 pa_assert_ctl_context();
3296 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3299 if (PA_SINK_IS_LINKED(s->state))
3300 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3302 latency = s->thread_info.fixed_latency;
3307 /* Called from IO thread */
3308 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3309 pa_sink_assert_ref(s);
3310 pa_sink_assert_io_context(s);
3312 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3313 pa_assert(latency == 0);
3314 s->thread_info.fixed_latency = 0;
3316 if (s->monitor_source)
3317 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3322 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3323 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3325 if (s->thread_info.fixed_latency == latency)
3328 s->thread_info.fixed_latency = latency;
3330 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3334 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3335 if (i->update_sink_fixed_latency)
3336 i->update_sink_fixed_latency(i);
3339 pa_sink_invalidate_requested_latency(s, false);
3341 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3344 /* Called from main context */
3345 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3346 pa_sink_assert_ref(s);
3348 s->port_latency_offset = offset;
3350 if (PA_SINK_IS_LINKED(s->state))
3351 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3353 s->thread_info.port_latency_offset = offset;
3355 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3358 /* Called from main context */
3359 size_t pa_sink_get_max_rewind(pa_sink *s) {
3361 pa_assert_ctl_context();
3362 pa_sink_assert_ref(s);
3364 if (!PA_SINK_IS_LINKED(s->state))
3365 return s->thread_info.max_rewind;
3367 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3372 /* Called from main context */
3373 size_t pa_sink_get_max_request(pa_sink *s) {
3375 pa_sink_assert_ref(s);
3376 pa_assert_ctl_context();
3378 if (!PA_SINK_IS_LINKED(s->state))
3379 return s->thread_info.max_request;
3381 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3386 /* Called from main context */
3387 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3388 pa_device_port *port;
3390 pa_sink_assert_ref(s);
3391 pa_assert_ctl_context();
3394 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3395 return -PA_ERR_NOTIMPLEMENTED;
3399 return -PA_ERR_NOENTITY;
3401 if (!(port = pa_hashmap_get(s->ports, name)))
3402 return -PA_ERR_NOENTITY;
3404 if (s->active_port == port) {
3405 s->save_port = s->save_port || save;
3409 if (s->set_port(s, port) < 0)
3410 return -PA_ERR_NOENTITY;
3412 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3414 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3416 s->active_port = port;
3417 s->save_port = save;
3419 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3421 /* The active port affects the default sink selection. */
3422 pa_core_update_default_sink(s->core);
3424 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3429 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3430 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3434 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3437 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3439 if (pa_streq(ff, "microphone"))
3440 t = "audio-input-microphone";
3441 else if (pa_streq(ff, "webcam"))
3443 else if (pa_streq(ff, "computer"))
3445 else if (pa_streq(ff, "handset"))
3447 else if (pa_streq(ff, "portable"))
3448 t = "multimedia-player";
3449 else if (pa_streq(ff, "tv"))
3450 t = "video-display";
3453 * The following icons are not part of the icon naming spec,
3454 * because Rodney Dawes sucks as the maintainer of that spec.
3456 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3458 else if (pa_streq(ff, "headset"))
3459 t = "audio-headset";
3460 else if (pa_streq(ff, "headphone"))
3461 t = "audio-headphones";
3462 else if (pa_streq(ff, "speaker"))
3463 t = "audio-speakers";
3464 else if (pa_streq(ff, "hands-free"))
3465 t = "audio-handsfree";
3469 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3470 if (pa_streq(c, "modem"))
3477 t = "audio-input-microphone";
3480 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3481 if (strstr(profile, "analog"))
3483 else if (strstr(profile, "iec958"))
3485 else if (strstr(profile, "hdmi"))
3489 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3491 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3496 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3497 const char *s, *d = NULL, *k;
3500 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3504 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3508 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3509 if (pa_streq(s, "internal"))
3510 d = _("Built-in Audio");
3513 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3514 if (pa_streq(s, "modem"))
3518 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3523 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3526 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3528 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3533 bool pa_device_init_intended_roles(pa_proplist *p) {
3537 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3540 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3541 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3542 || pa_streq(s, "headset")) {
3543 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3550 unsigned pa_device_init_priority(pa_proplist *p) {
3552 unsigned priority = 0;
3556 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3558 if (pa_streq(s, "sound"))
3560 else if (!pa_streq(s, "modem"))
3564 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3566 if (pa_streq(s, "headphone"))
3568 else if (pa_streq(s, "hifi"))
3570 else if (pa_streq(s, "speaker"))
3572 else if (pa_streq(s, "portable"))
3576 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3578 if (pa_streq(s, "bluetooth"))
3580 else if (pa_streq(s, "usb"))
3582 else if (pa_streq(s, "pci"))
3586 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3588 if (pa_startswith(s, "analog-"))
3590 else if (pa_startswith(s, "iec958-"))
3597 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3599 /* Called from the IO thread. */
3600 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3601 pa_sink_volume_change *c;
3602 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3603 c = pa_xnew(pa_sink_volume_change, 1);
3605 PA_LLIST_INIT(pa_sink_volume_change, c);
3607 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3611 /* Called from the IO thread. */
3612 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3614 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3618 /* Called from the IO thread. */
3619 void pa_sink_volume_change_push(pa_sink *s) {
3620 pa_sink_volume_change *c = NULL;
3621 pa_sink_volume_change *nc = NULL;
3622 pa_sink_volume_change *pc = NULL;
3623 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3625 const char *direction = NULL;
3628 nc = pa_sink_volume_change_new(s);
3630 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3631 * Adding one more volume for HW would get us rid of this, but I am trying
3632 * to survive with the ones we already have. */
3633 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3635 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3636 pa_log_debug("Volume not changing");
3637 pa_sink_volume_change_free(nc);
3641 nc->at = pa_sink_get_latency_within_thread(s, false);
3642 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3644 if (s->thread_info.volume_changes_tail) {
3645 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3646 /* If volume is going up let's do it a bit late. If it is going
3647 * down let's do it a bit early. */
3648 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3649 if (nc->at + safety_margin > c->at) {
3650 nc->at += safety_margin;
3655 else if (nc->at - safety_margin > c->at) {
3656 nc->at -= safety_margin;
3664 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3665 nc->at += safety_margin;
3668 nc->at -= safety_margin;
3671 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3674 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3677 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3679 /* We can ignore volume events that came earlier but should happen later than this. */
3680 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3681 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3682 pa_sink_volume_change_free(c);
3685 s->thread_info.volume_changes_tail = nc;
3688 /* Called from the IO thread. */
3689 static void pa_sink_volume_change_flush(pa_sink *s) {
3690 pa_sink_volume_change *c = s->thread_info.volume_changes;
3692 s->thread_info.volume_changes = NULL;
3693 s->thread_info.volume_changes_tail = NULL;
3695 pa_sink_volume_change *next = c->next;
3696 pa_sink_volume_change_free(c);
3701 /* Called from the IO thread. */
3702 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3708 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3714 pa_assert(s->write_volume);
3716 now = pa_rtclock_now();
3718 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3719 pa_sink_volume_change *c = s->thread_info.volume_changes;
3720 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3721 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3722 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3724 s->thread_info.current_hw_volume = c->hw_volume;
3725 pa_sink_volume_change_free(c);
3731 if (s->thread_info.volume_changes) {
3733 *usec_to_next = s->thread_info.volume_changes->at - now;
3734 if (pa_log_ratelimit(PA_LOG_DEBUG))
3735 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3740 s->thread_info.volume_changes_tail = NULL;
3745 /* Called from the IO thread. */
3746 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3747 /* All the queued volume events later than current latency are shifted to happen earlier. */
3748 pa_sink_volume_change *c;
3749 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3750 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3751 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3753 pa_log_debug("latency = %lld", (long long) limit);
3754 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3756 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3757 pa_usec_t modified_limit = limit;
3758 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3759 modified_limit -= s->thread_info.volume_change_safety_margin;
3761 modified_limit += s->thread_info.volume_change_safety_margin;
3762 if (c->at > modified_limit) {
3764 if (c->at < modified_limit)
3765 c->at = modified_limit;
3767 prev_vol = pa_cvolume_avg(&c->hw_volume);
3769 pa_sink_volume_change_apply(s, NULL);
3772 /* Called from the main thread */
3773 /* Gets the list of formats supported by the sink. The members and idxset must
3774 * be freed by the caller. */
3775 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3780 if (s->get_formats) {
3781 /* Sink supports format query, all is good */
3782 ret = s->get_formats(s);
3784 /* Sink doesn't support format query, so assume it does PCM */
3785 pa_format_info *f = pa_format_info_new();
3786 f->encoding = PA_ENCODING_PCM;
3788 ret = pa_idxset_new(NULL, NULL);
3789 pa_idxset_put(ret, f, NULL);
3795 /* Called from the main thread */
3796 /* Allows an external source to set what formats a sink supports if the sink
3797 * permits this. The function makes a copy of the formats on success. */
3798 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3803 /* Sink supports setting formats -- let's give it a shot */
3804 return s->set_formats(s, formats);
3806 /* Sink doesn't support setting this -- bail out */
3810 /* Called from the main thread */
3811 /* Checks if the sink can accept this format */
3812 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3813 pa_idxset *formats = NULL;
3819 formats = pa_sink_get_formats(s);
3822 pa_format_info *finfo_device;
3825 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3826 if (pa_format_info_is_compatible(finfo_device, f)) {
3832 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3838 /* Called from the main thread */
3839 /* Calculates the intersection between formats supported by the sink and
3840 * in_formats, and returns these, in the order of the sink's formats. */
3841 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3842 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3843 pa_format_info *f_sink, *f_in;
3848 if (!in_formats || pa_idxset_isempty(in_formats))
3851 sink_formats = pa_sink_get_formats(s);
3853 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3854 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3855 if (pa_format_info_is_compatible(f_sink, f_in))
3856 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3862 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3867 /* Called from the main thread. */
3868 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3869 pa_cvolume old_volume;
3870 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3871 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3876 old_volume = s->reference_volume;
3878 if (pa_cvolume_equal(volume, &old_volume))
3881 s->reference_volume = *volume;
3882 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3883 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3884 s->flags & PA_SINK_DECIBEL_VOLUME),
3885 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3886 s->flags & PA_SINK_DECIBEL_VOLUME));
3888 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3889 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);