2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
29 #include <pulse/introspect.h>
30 #include <pulse/format.h>
31 #include <pulse/utf8.h>
32 #include <pulse/xmalloc.h>
33 #include <pulse/timeval.h>
34 #include <pulse/util.h>
35 #include <pulse/rtclock.h>
36 #include <pulse/internal.h>
38 #include <pulsecore/i18n.h>
39 #include <pulsecore/sink-input.h>
40 #include <pulsecore/namereg.h>
41 #include <pulsecore/core-util.h>
42 #include <pulsecore/sample-util.h>
43 #include <pulsecore/mix.h>
44 #include <pulsecore/core-subscribe.h>
45 #include <pulsecore/log.h>
46 #include <pulsecore/macro.h>
47 #include <pulsecore/play-memblockq.h>
48 #include <pulsecore/flist.h>
52 #define MAX_MIX_CHANNELS 32
53 #define MIX_BUFFER_LENGTH (pa_page_size())
54 #define ABSOLUTE_MIN_LATENCY (500)
55 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
56 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
58 PA_DEFINE_PUBLIC_CLASS(pa_sink, pa_msgobject);
60 struct pa_sink_volume_change {
64 PA_LLIST_FIELDS(pa_sink_volume_change);
67 struct set_state_data {
68 pa_sink_state_t state;
69 pa_suspend_cause_t suspend_cause;
72 static void sink_free(pa_object *s);
74 static void pa_sink_volume_change_push(pa_sink *s);
75 static void pa_sink_volume_change_flush(pa_sink *s);
76 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes);
78 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
82 data->proplist = pa_proplist_new();
83 data->ports = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_device_port_unref);
88 void pa_sink_new_data_set_name(pa_sink_new_data *data, const char *name) {
92 data->name = pa_xstrdup(name);
95 void pa_sink_new_data_set_sample_spec(pa_sink_new_data *data, const pa_sample_spec *spec) {
98 if ((data->sample_spec_is_set = !!spec))
99 data->sample_spec = *spec;
102 void pa_sink_new_data_set_channel_map(pa_sink_new_data *data, const pa_channel_map *map) {
105 if ((data->channel_map_is_set = !!map))
106 data->channel_map = *map;
109 void pa_sink_new_data_set_alternate_sample_rate(pa_sink_new_data *data, const uint32_t alternate_sample_rate) {
112 data->alternate_sample_rate_is_set = true;
113 data->alternate_sample_rate = alternate_sample_rate;
116 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
119 if ((data->volume_is_set = !!volume))
120 data->volume = *volume;
123 void pa_sink_new_data_set_muted(pa_sink_new_data *data, bool mute) {
126 data->muted_is_set = true;
130 void pa_sink_new_data_set_port(pa_sink_new_data *data, const char *port) {
133 pa_xfree(data->active_port);
134 data->active_port = pa_xstrdup(port);
137 void pa_sink_new_data_done(pa_sink_new_data *data) {
140 pa_proplist_free(data->proplist);
143 pa_hashmap_free(data->ports);
145 pa_xfree(data->name);
146 pa_xfree(data->active_port);
149 /* Called from main context */
150 static void reset_callbacks(pa_sink *s) {
153 s->set_state_in_main_thread = NULL;
154 s->set_state_in_io_thread = NULL;
155 s->get_volume = NULL;
156 s->set_volume = NULL;
157 s->write_volume = NULL;
160 s->request_rewind = NULL;
161 s->update_requested_latency = NULL;
163 s->get_formats = NULL;
164 s->set_formats = NULL;
165 s->reconfigure = NULL;
168 /* Called from main context */
169 pa_sink* pa_sink_new(
171 pa_sink_new_data *data,
172 pa_sink_flags_t flags) {
176 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
177 pa_source_new_data source_data;
183 pa_assert(data->name);
184 pa_assert_ctl_context();
186 s = pa_msgobject_new(pa_sink);
188 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
189 pa_log_debug("Failed to register name %s.", data->name);
194 pa_sink_new_data_set_name(data, name);
196 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
198 pa_namereg_unregister(core, name);
202 /* FIXME, need to free s here on failure */
204 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
205 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
207 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
209 if (!data->channel_map_is_set)
210 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
212 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
213 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
215 /* FIXME: There should probably be a general function for checking whether
216 * the sink volume is allowed to be set, like there is for sink inputs. */
217 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
219 if (!data->volume_is_set) {
220 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
221 data->save_volume = false;
224 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
225 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
227 if (!data->muted_is_set)
231 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
233 pa_device_init_description(data->proplist, data->card);
234 pa_device_init_icon(data->proplist, true);
235 pa_device_init_intended_roles(data->proplist);
237 if (!data->active_port) {
238 pa_device_port *p = pa_device_port_find_best(data->ports);
240 pa_sink_new_data_set_port(data, p->name);
243 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
245 pa_namereg_unregister(core, name);
249 s->parent.parent.free = sink_free;
250 s->parent.process_msg = pa_sink_process_msg;
253 s->state = PA_SINK_INIT;
256 s->suspend_cause = data->suspend_cause;
257 s->name = pa_xstrdup(name);
258 s->proplist = pa_proplist_copy(data->proplist);
259 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
260 s->module = data->module;
261 s->card = data->card;
263 s->priority = pa_device_init_priority(s->proplist);
265 s->sample_spec = data->sample_spec;
266 s->channel_map = data->channel_map;
267 s->default_sample_rate = s->sample_spec.rate;
269 if (data->alternate_sample_rate_is_set)
270 s->alternate_sample_rate = data->alternate_sample_rate;
272 s->alternate_sample_rate = s->core->alternate_sample_rate;
274 s->avoid_resampling = data->avoid_resampling;
276 s->inputs = pa_idxset_new(NULL, NULL);
278 s->input_to_master = NULL;
280 s->reference_volume = s->real_volume = data->volume;
281 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
282 s->base_volume = PA_VOLUME_NORM;
283 s->n_volume_steps = PA_VOLUME_NORM+1;
284 s->muted = data->muted;
285 s->refresh_volume = s->refresh_muted = false;
292 /* As a minor optimization we just steal the list instead of
294 s->ports = data->ports;
297 s->active_port = NULL;
298 s->save_port = false;
300 if (data->active_port)
301 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
302 s->save_port = data->save_port;
304 /* Hopefully the active port has already been assigned in the previous call
305 to pa_device_port_find_best, but better safe than sorry */
307 s->active_port = pa_device_port_find_best(s->ports);
310 s->port_latency_offset = s->active_port->latency_offset;
312 s->port_latency_offset = 0;
314 s->save_volume = data->save_volume;
315 s->save_muted = data->save_muted;
317 pa_silence_memchunk_get(
318 &core->silence_cache,
324 s->thread_info.rtpoll = NULL;
325 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
326 (pa_free_cb_t) pa_sink_input_unref);
327 s->thread_info.soft_volume = s->soft_volume;
328 s->thread_info.soft_muted = s->muted;
329 s->thread_info.state = s->state;
330 s->thread_info.rewind_nbytes = 0;
331 s->thread_info.rewind_requested = false;
332 s->thread_info.max_rewind = 0;
333 s->thread_info.max_request = 0;
334 s->thread_info.requested_latency_valid = false;
335 s->thread_info.requested_latency = 0;
336 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
337 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
338 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
340 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
341 s->thread_info.volume_changes_tail = NULL;
342 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
343 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
344 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
345 s->thread_info.port_latency_offset = s->port_latency_offset;
347 /* FIXME: This should probably be moved to pa_sink_put() */
348 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
351 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
353 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
354 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
357 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
358 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
362 pa_source_new_data_init(&source_data);
363 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
364 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
365 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
366 source_data.name = pa_sprintf_malloc("%s.monitor", name);
367 source_data.driver = data->driver;
368 source_data.module = data->module;
369 source_data.card = data->card;
371 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
372 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
373 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
375 s->monitor_source = pa_source_new(core, &source_data,
376 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
377 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
379 pa_source_new_data_done(&source_data);
381 if (!s->monitor_source) {
387 s->monitor_source->monitor_of = s;
389 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
390 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
391 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
396 /* Called from main context */
397 static int sink_set_state(pa_sink *s, pa_sink_state_t state, pa_suspend_cause_t suspend_cause) {
400 bool suspend_cause_changed;
405 pa_assert_ctl_context();
407 state_changed = state != s->state;
408 suspend_cause_changed = suspend_cause != s->suspend_cause;
410 if (!state_changed && !suspend_cause_changed)
413 suspending = PA_SINK_IS_OPENED(s->state) && state == PA_SINK_SUSPENDED;
414 resuming = s->state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state);
416 /* If we are resuming, suspend_cause must be 0. */
417 pa_assert(!resuming || !suspend_cause);
419 /* Here's something to think about: what to do with the suspend cause if
420 * resuming the sink fails? The old suspend cause will be incorrect, so we
421 * can't use that. On the other hand, if we set no suspend cause (as is the
422 * case currently), then it looks strange to have a sink suspended without
423 * any cause. It might be a good idea to add a new "resume failed" suspend
424 * cause, or it might just add unnecessary complexity, given that the
425 * current approach of not setting any suspend cause works well enough. */
427 if (s->set_state_in_main_thread) {
428 if ((ret = s->set_state_in_main_thread(s, state, suspend_cause)) < 0) {
429 /* set_state_in_main_thread() is allowed to fail only when resuming. */
432 /* If resuming fails, we set the state to SUSPENDED and
433 * suspend_cause to 0. */
434 state = PA_SINK_SUSPENDED;
436 state_changed = false;
437 suspend_cause_changed = suspend_cause != s->suspend_cause;
440 /* We know the state isn't changing. If the suspend cause isn't
441 * changing either, then there's nothing more to do. */
442 if (!suspend_cause_changed)
448 struct set_state_data data = { .state = state, .suspend_cause = suspend_cause };
450 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, &data, 0, NULL)) < 0) {
451 /* SET_STATE is allowed to fail only when resuming. */
454 if (s->set_state_in_main_thread)
455 s->set_state_in_main_thread(s, PA_SINK_SUSPENDED, 0);
457 /* If resuming fails, we set the state to SUSPENDED and
458 * suspend_cause to 0. */
459 state = PA_SINK_SUSPENDED;
461 state_changed = false;
462 suspend_cause_changed = suspend_cause != s->suspend_cause;
465 /* We know the state isn't changing. If the suspend cause isn't
466 * changing either, then there's nothing more to do. */
467 if (!suspend_cause_changed)
472 if (suspend_cause_changed) {
473 char old_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
474 char new_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
476 pa_log_debug("%s: suspend_cause: %s -> %s", s->name, pa_suspend_cause_to_string(s->suspend_cause, old_cause_buf),
477 pa_suspend_cause_to_string(suspend_cause, new_cause_buf));
478 s->suspend_cause = suspend_cause;
482 pa_log_debug("%s: state: %s -> %s", s->name, pa_sink_state_to_string(s->state), pa_sink_state_to_string(state));
485 /* If we enter UNLINKED state, then we don't send change notifications.
486 * pa_sink_unlink() will send unlink notifications instead. */
487 if (state != PA_SINK_UNLINKED) {
488 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
489 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
493 if (suspending || resuming) {
497 /* We're suspending or resuming, tell everyone about it */
499 PA_IDXSET_FOREACH(i, s->inputs, idx)
500 if (s->state == PA_SINK_SUSPENDED &&
501 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
502 pa_sink_input_kill(i);
504 i->suspend(i, state == PA_SINK_SUSPENDED);
507 if ((suspending || resuming || suspend_cause_changed) && s->monitor_source && state != PA_SINK_UNLINKED)
508 pa_source_sync_suspend(s->monitor_source);
513 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
519 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
520 pa_sink_flags_t flags;
523 pa_assert(!s->write_volume || cb);
527 /* Save the current flags so we can tell if they've changed */
531 /* The sink implementor is responsible for setting decibel volume support */
532 s->flags |= PA_SINK_HW_VOLUME_CTRL;
534 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
535 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
536 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
539 /* If the flags have changed after init, let any clients know via a change event */
540 if (s->state != PA_SINK_INIT && flags != s->flags)
541 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
544 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
545 pa_sink_flags_t flags;
548 pa_assert(!cb || s->set_volume);
550 s->write_volume = cb;
552 /* Save the current flags so we can tell if they've changed */
556 s->flags |= PA_SINK_DEFERRED_VOLUME;
558 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
560 /* If the flags have changed after init, let any clients know via a change event */
561 if (s->state != PA_SINK_INIT && flags != s->flags)
562 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
565 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
571 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
572 pa_sink_flags_t flags;
578 /* Save the current flags so we can tell if they've changed */
582 s->flags |= PA_SINK_HW_MUTE_CTRL;
584 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
586 /* If the flags have changed after init, let any clients know via a change event */
587 if (s->state != PA_SINK_INIT && flags != s->flags)
588 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
591 static void enable_flat_volume(pa_sink *s, bool enable) {
592 pa_sink_flags_t flags;
596 /* Always follow the overall user preference here */
597 enable = enable && s->core->flat_volumes;
599 /* Save the current flags so we can tell if they've changed */
603 s->flags |= PA_SINK_FLAT_VOLUME;
605 s->flags &= ~PA_SINK_FLAT_VOLUME;
607 /* If the flags have changed after init, let any clients know via a change event */
608 if (s->state != PA_SINK_INIT && flags != s->flags)
609 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
612 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
613 pa_sink_flags_t flags;
617 /* Save the current flags so we can tell if they've changed */
621 s->flags |= PA_SINK_DECIBEL_VOLUME;
622 enable_flat_volume(s, true);
624 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
625 enable_flat_volume(s, false);
628 /* If the flags have changed after init, let any clients know via a change event */
629 if (s->state != PA_SINK_INIT && flags != s->flags)
630 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
633 /* Called from main context */
634 void pa_sink_put(pa_sink* s) {
635 pa_sink_assert_ref(s);
636 pa_assert_ctl_context();
638 pa_assert(s->state == PA_SINK_INIT);
639 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
641 /* The following fields must be initialized properly when calling _put() */
642 pa_assert(s->asyncmsgq);
643 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
645 /* Generally, flags should be initialized via pa_sink_new(). As a
646 * special exception we allow some volume related flags to be set
647 * between _new() and _put() by the callback setter functions above.
649 * Thus we implement a couple safeguards here which ensure the above
650 * setters were used (or at least the implementor made manual changes
651 * in a compatible way).
653 * Note: All of these flags set here can change over the life time
655 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
656 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
657 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
659 /* XXX: Currently decibel volume is disabled for all sinks that use volume
660 * sharing. When the master sink supports decibel volume, it would be good
661 * to have the flag also in the filter sink, but currently we don't do that
662 * so that the flags of the filter sink never change when it's moved from
663 * a master sink to another. One solution for this problem would be to
664 * remove user-visible volume altogether from filter sinks when volume
665 * sharing is used, but the current approach was easier to implement... */
666 /* We always support decibel volumes in software, otherwise we leave it to
667 * the sink implementor to set this flag as needed.
669 * Note: This flag can also change over the life time of the sink. */
670 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
671 pa_sink_enable_decibel_volume(s, true);
672 s->soft_volume = s->reference_volume;
675 /* If the sink implementor support DB volumes by itself, we should always
676 * try and enable flat volumes too */
677 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
678 enable_flat_volume(s, true);
680 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
681 pa_sink *root_sink = pa_sink_get_master(s);
683 pa_assert(root_sink);
685 s->reference_volume = root_sink->reference_volume;
686 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
688 s->real_volume = root_sink->real_volume;
689 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
691 /* We assume that if the sink implementor changed the default
692 * volume he did so in real_volume, because that is the usual
693 * place where he is supposed to place his changes. */
694 s->reference_volume = s->real_volume;
696 s->thread_info.soft_volume = s->soft_volume;
697 s->thread_info.soft_muted = s->muted;
698 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
700 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
701 || (s->base_volume == PA_VOLUME_NORM
702 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
703 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
704 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
705 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
706 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
708 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
709 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
710 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
712 if (s->suspend_cause)
713 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED, s->suspend_cause) == 0);
715 pa_assert_se(sink_set_state(s, PA_SINK_IDLE, 0) == 0);
717 pa_source_put(s->monitor_source);
719 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
720 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
722 /* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
723 * because module-switch-on-connect needs to know the old default sink */
724 pa_core_update_default_sink(s->core);
727 /* Called from main context */
728 void pa_sink_unlink(pa_sink* s) {
730 pa_sink_input *i, PA_UNUSED *j = NULL;
732 pa_sink_assert_ref(s);
733 pa_assert_ctl_context();
735 /* Please note that pa_sink_unlink() does more than simply
736 * reversing pa_sink_put(). It also undoes the registrations
737 * already done in pa_sink_new()! */
739 if (s->unlink_requested)
742 s->unlink_requested = true;
744 linked = PA_SINK_IS_LINKED(s->state);
747 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
749 if (s->state != PA_SINK_UNLINKED)
750 pa_namereg_unregister(s->core, s->name);
751 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
753 pa_core_update_default_sink(s->core);
756 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
758 while ((i = pa_idxset_first(s->inputs, NULL))) {
760 pa_sink_input_kill(i);
765 sink_set_state(s, PA_SINK_UNLINKED, 0);
767 s->state = PA_SINK_UNLINKED;
771 if (s->monitor_source)
772 pa_source_unlink(s->monitor_source);
775 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
776 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
780 /* Called from main context */
781 static void sink_free(pa_object *o) {
782 pa_sink *s = PA_SINK(o);
785 pa_assert_ctl_context();
786 pa_assert(pa_sink_refcnt(s) == 0);
787 pa_assert(!PA_SINK_IS_LINKED(s->state));
789 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
791 pa_sink_volume_change_flush(s);
793 if (s->monitor_source) {
794 pa_source_unref(s->monitor_source);
795 s->monitor_source = NULL;
798 pa_idxset_free(s->inputs, NULL);
799 pa_hashmap_free(s->thread_info.inputs);
801 if (s->silence.memblock)
802 pa_memblock_unref(s->silence.memblock);
808 pa_proplist_free(s->proplist);
811 pa_hashmap_free(s->ports);
816 /* Called from main context, and not while the IO thread is active, please */
817 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
818 pa_sink_assert_ref(s);
819 pa_assert_ctl_context();
823 if (s->monitor_source)
824 pa_source_set_asyncmsgq(s->monitor_source, q);
827 /* Called from main context, and not while the IO thread is active, please */
828 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
829 pa_sink_flags_t old_flags;
830 pa_sink_input *input;
833 pa_sink_assert_ref(s);
834 pa_assert_ctl_context();
836 /* For now, allow only a minimal set of flags to be changed. */
837 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
839 old_flags = s->flags;
840 s->flags = (s->flags & ~mask) | (value & mask);
842 if (s->flags == old_flags)
845 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
846 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
848 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
849 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
850 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
852 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
853 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
855 if (s->monitor_source)
856 pa_source_update_flags(s->monitor_source,
857 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
858 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
859 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
860 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
862 PA_IDXSET_FOREACH(input, s->inputs, idx) {
863 if (input->origin_sink)
864 pa_sink_update_flags(input->origin_sink, mask, value);
868 /* Called from IO context, or before _put() from main context */
869 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
870 pa_sink_assert_ref(s);
871 pa_sink_assert_io_context(s);
873 s->thread_info.rtpoll = p;
875 if (s->monitor_source)
876 pa_source_set_rtpoll(s->monitor_source, p);
879 /* Called from main context */
880 int pa_sink_update_status(pa_sink*s) {
881 pa_sink_assert_ref(s);
882 pa_assert_ctl_context();
883 pa_assert(PA_SINK_IS_LINKED(s->state));
885 if (s->state == PA_SINK_SUSPENDED)
888 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
891 /* Called from main context */
892 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
893 pa_suspend_cause_t merged_cause;
895 pa_sink_assert_ref(s);
896 pa_assert_ctl_context();
897 pa_assert(PA_SINK_IS_LINKED(s->state));
898 pa_assert(cause != 0);
901 merged_cause = s->suspend_cause | cause;
903 merged_cause = s->suspend_cause & ~cause;
906 return sink_set_state(s, PA_SINK_SUSPENDED, merged_cause);
908 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
911 /* Called from main context */
912 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
913 pa_sink_input *i, *n;
916 pa_sink_assert_ref(s);
917 pa_assert_ctl_context();
918 pa_assert(PA_SINK_IS_LINKED(s->state));
923 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
924 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
926 pa_sink_input_ref(i);
928 if (pa_sink_input_start_move(i) >= 0)
931 pa_sink_input_unref(i);
937 /* Called from main context */
938 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
941 pa_sink_assert_ref(s);
942 pa_assert_ctl_context();
943 pa_assert(PA_SINK_IS_LINKED(s->state));
946 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
947 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
948 if (pa_sink_input_finish_move(i, s, save) < 0)
949 pa_sink_input_fail_move(i);
952 pa_sink_input_unref(i);
955 pa_queue_free(q, NULL);
958 /* Called from main context */
959 void pa_sink_move_all_fail(pa_queue *q) {
962 pa_assert_ctl_context();
965 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
966 pa_sink_input_fail_move(i);
967 pa_sink_input_unref(i);
970 pa_queue_free(q, NULL);
973 /* Called from IO thread context */
974 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
979 pa_sink_assert_ref(s);
980 pa_sink_assert_io_context(s);
982 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
983 size_t uf = i->thread_info.underrun_for_sink;
985 /* Propagate down the filter tree */
986 if (i->origin_sink) {
987 size_t filter_result, left_to_play_origin;
989 /* The recursive call works in the origin sink domain ... */
990 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
992 /* .. and returns the time to sleep before waking up. We need the
993 * underrun duration for comparisons, so we undo the subtraction on
994 * the return value... */
995 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
997 /* ... and convert it back to the master sink domain */
998 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
1000 /* Remember the longest underrun so far */
1001 if (filter_result > result)
1002 result = filter_result;
1006 /* No underrun here, move on */
1008 } else if (uf >= left_to_play) {
1009 /* The sink has possibly consumed all the data the sink input provided */
1010 pa_sink_input_process_underrun(i);
1011 } else if (uf > result) {
1012 /* Remember the longest underrun so far */
1018 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
1019 (long) result, (long) left_to_play - result);
1020 return left_to_play - result;
1023 /* Called from IO thread context */
1024 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1028 pa_sink_assert_ref(s);
1029 pa_sink_assert_io_context(s);
1030 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1032 /* If nobody requested this and this is actually no real rewind
1033 * then we can short cut this. Please note that this means that
1034 * not all rewind requests triggered upstream will always be
1035 * translated in actual requests! */
1036 if (!s->thread_info.rewind_requested && nbytes <= 0)
1039 s->thread_info.rewind_nbytes = 0;
1040 s->thread_info.rewind_requested = false;
1043 pa_log_debug("Processing rewind...");
1044 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1045 pa_sink_volume_change_rewind(s, nbytes);
1048 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1049 pa_sink_input_assert_ref(i);
1050 pa_sink_input_process_rewind(i, nbytes);
1054 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1055 pa_source_process_rewind(s->monitor_source, nbytes);
1059 /* Called from IO thread context */
1060 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1064 size_t mixlength = *length;
1066 pa_sink_assert_ref(s);
1067 pa_sink_assert_io_context(s);
1070 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1071 pa_sink_input_assert_ref(i);
1073 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1075 if (mixlength == 0 || info->chunk.length < mixlength)
1076 mixlength = info->chunk.length;
1078 if (pa_memblock_is_silence(info->chunk.memblock)) {
1079 pa_memblock_unref(info->chunk.memblock);
1083 info->userdata = pa_sink_input_ref(i);
1085 pa_assert(info->chunk.memblock);
1086 pa_assert(info->chunk.length > 0);
1094 *length = mixlength;
1099 /* Called from IO thread context */
1100 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1104 unsigned n_unreffed = 0;
1106 pa_sink_assert_ref(s);
1107 pa_sink_assert_io_context(s);
1109 pa_assert(result->memblock);
1110 pa_assert(result->length > 0);
1112 /* We optimize for the case where the order of the inputs has not changed */
1114 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1116 pa_mix_info* m = NULL;
1118 pa_sink_input_assert_ref(i);
1120 /* Let's try to find the matching entry info the pa_mix_info array */
1121 for (j = 0; j < n; j ++) {
1123 if (info[p].userdata == i) {
1133 /* Drop read data */
1134 pa_sink_input_drop(i, result->length);
1136 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1138 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1139 void *ostate = NULL;
1140 pa_source_output *o;
1143 if (m && m->chunk.memblock) {
1145 pa_memblock_ref(c.memblock);
1146 pa_assert(result->length <= c.length);
1147 c.length = result->length;
1149 pa_memchunk_make_writable(&c, 0);
1150 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1153 pa_memblock_ref(c.memblock);
1154 pa_assert(result->length <= c.length);
1155 c.length = result->length;
1158 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1159 pa_source_output_assert_ref(o);
1160 pa_assert(o->direct_on_input == i);
1161 pa_source_post_direct(s->monitor_source, o, &c);
1164 pa_memblock_unref(c.memblock);
1169 if (m->chunk.memblock) {
1170 pa_memblock_unref(m->chunk.memblock);
1171 pa_memchunk_reset(&m->chunk);
1174 pa_sink_input_unref(m->userdata);
1181 /* Now drop references to entries that are included in the
1182 * pa_mix_info array but don't exist anymore */
1184 if (n_unreffed < n) {
1185 for (; n > 0; info++, n--) {
1187 pa_sink_input_unref(info->userdata);
1188 if (info->chunk.memblock)
1189 pa_memblock_unref(info->chunk.memblock);
1193 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1194 pa_source_post(s->monitor_source, result);
1197 /* Called from IO thread context */
1198 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1199 pa_mix_info info[MAX_MIX_CHANNELS];
1201 size_t block_size_max;
1203 pa_sink_assert_ref(s);
1204 pa_sink_assert_io_context(s);
1205 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1206 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1209 pa_assert(!s->thread_info.rewind_requested);
1210 pa_assert(s->thread_info.rewind_nbytes == 0);
1212 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1213 result->memblock = pa_memblock_ref(s->silence.memblock);
1214 result->index = s->silence.index;
1215 result->length = PA_MIN(s->silence.length, length);
1222 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1224 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1225 if (length > block_size_max)
1226 length = pa_frame_align(block_size_max, &s->sample_spec);
1228 pa_assert(length > 0);
1230 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1234 *result = s->silence;
1235 pa_memblock_ref(result->memblock);
1237 if (result->length > length)
1238 result->length = length;
1240 } else if (n == 1) {
1243 *result = info[0].chunk;
1244 pa_memblock_ref(result->memblock);
1246 if (result->length > length)
1247 result->length = length;
1249 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1251 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1252 pa_memblock_unref(result->memblock);
1253 pa_silence_memchunk_get(&s->core->silence_cache,
1258 } else if (!pa_cvolume_is_norm(&volume)) {
1259 pa_memchunk_make_writable(result, 0);
1260 pa_volume_memchunk(result, &s->sample_spec, &volume);
1264 result->memblock = pa_memblock_new(s->core->mempool, length);
1266 ptr = pa_memblock_acquire(result->memblock);
1267 result->length = pa_mix(info, n,
1270 &s->thread_info.soft_volume,
1271 s->thread_info.soft_muted);
1272 pa_memblock_release(result->memblock);
1277 inputs_drop(s, info, n, result);
1282 /* Called from IO thread context */
1283 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1284 pa_mix_info info[MAX_MIX_CHANNELS];
1286 size_t length, block_size_max;
1288 pa_sink_assert_ref(s);
1289 pa_sink_assert_io_context(s);
1290 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1292 pa_assert(target->memblock);
1293 pa_assert(target->length > 0);
1294 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1296 pa_assert(!s->thread_info.rewind_requested);
1297 pa_assert(s->thread_info.rewind_nbytes == 0);
1299 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1300 pa_silence_memchunk(target, &s->sample_spec);
1306 length = target->length;
1307 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1308 if (length > block_size_max)
1309 length = pa_frame_align(block_size_max, &s->sample_spec);
1311 pa_assert(length > 0);
1313 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1316 if (target->length > length)
1317 target->length = length;
1319 pa_silence_memchunk(target, &s->sample_spec);
1320 } else if (n == 1) {
1323 if (target->length > length)
1324 target->length = length;
1326 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1328 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1329 pa_silence_memchunk(target, &s->sample_spec);
1333 vchunk = info[0].chunk;
1334 pa_memblock_ref(vchunk.memblock);
1336 if (vchunk.length > length)
1337 vchunk.length = length;
1339 if (!pa_cvolume_is_norm(&volume)) {
1340 pa_memchunk_make_writable(&vchunk, 0);
1341 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1344 pa_memchunk_memcpy(target, &vchunk);
1345 pa_memblock_unref(vchunk.memblock);
1351 ptr = pa_memblock_acquire(target->memblock);
1353 target->length = pa_mix(info, n,
1354 (uint8_t*) ptr + target->index, length,
1356 &s->thread_info.soft_volume,
1357 s->thread_info.soft_muted);
1359 pa_memblock_release(target->memblock);
1362 inputs_drop(s, info, n, target);
1367 /* Called from IO thread context */
1368 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1372 pa_sink_assert_ref(s);
1373 pa_sink_assert_io_context(s);
1374 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1376 pa_assert(target->memblock);
1377 pa_assert(target->length > 0);
1378 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1380 pa_assert(!s->thread_info.rewind_requested);
1381 pa_assert(s->thread_info.rewind_nbytes == 0);
1383 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1384 pa_silence_memchunk(target, &s->sample_spec);
1397 pa_sink_render_into(s, &chunk);
1406 /* Called from IO thread context */
1407 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1408 pa_sink_assert_ref(s);
1409 pa_sink_assert_io_context(s);
1410 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1411 pa_assert(length > 0);
1412 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1415 pa_assert(!s->thread_info.rewind_requested);
1416 pa_assert(s->thread_info.rewind_nbytes == 0);
1420 pa_sink_render(s, length, result);
1422 if (result->length < length) {
1425 pa_memchunk_make_writable(result, length);
1427 chunk.memblock = result->memblock;
1428 chunk.index = result->index + result->length;
1429 chunk.length = length - result->length;
1431 pa_sink_render_into_full(s, &chunk);
1433 result->length = length;
1439 /* Called from main thread */
1440 int pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1442 pa_sample_spec desired_spec;
1443 uint32_t default_rate = s->default_sample_rate;
1444 uint32_t alternate_rate = s->alternate_sample_rate;
1447 bool default_rate_is_usable = false;
1448 bool alternate_rate_is_usable = false;
1449 bool avoid_resampling = s->avoid_resampling;
1451 /* We currently only try to reconfigure the sample rate */
1453 if (pa_sample_spec_equal(spec, &s->sample_spec))
1456 if (!s->reconfigure)
1459 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1460 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1464 if (PA_SINK_IS_RUNNING(s->state)) {
1465 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1466 s->sample_spec.rate);
1470 if (s->monitor_source) {
1471 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1472 pa_log_info("Cannot update rate, monitor source is RUNNING");
1477 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1480 desired_spec = s->sample_spec;
1483 /* We have to try to use the sink input rate */
1484 desired_spec.rate = spec->rate;
1486 } else if (avoid_resampling && (spec->rate >= default_rate || spec->rate >= alternate_rate)) {
1487 /* We just try to set the sink input's sample rate if it's not too low */
1488 desired_spec.rate = spec->rate;
1490 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1491 /* We can directly try to use this rate */
1492 desired_spec.rate = spec->rate;
1495 /* See if we can pick a rate that results in less resampling effort */
1496 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1497 default_rate_is_usable = true;
1498 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1499 default_rate_is_usable = true;
1500 if (alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1501 alternate_rate_is_usable = true;
1502 if (alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1503 alternate_rate_is_usable = true;
1505 if (alternate_rate_is_usable && !default_rate_is_usable)
1506 desired_spec.rate = alternate_rate;
1508 desired_spec.rate = default_rate;
1511 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1514 if (!passthrough && pa_sink_used_by(s) > 0)
1517 pa_log_debug("Suspending sink %s due to changing format, desired rate = %u", s->name, desired_spec.rate);
1518 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1520 if (s->reconfigure(s, &desired_spec, passthrough) >= 0) {
1521 /* update monitor source as well */
1522 if (s->monitor_source && !passthrough)
1523 pa_source_reconfigure(s->monitor_source, &desired_spec, false);
1524 pa_log_info("Changed format successfully");
1526 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1527 if (i->state == PA_SINK_INPUT_CORKED)
1528 pa_sink_input_update_rate(i);
1534 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1539 /* Called from main thread */
1540 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1543 pa_sink_assert_ref(s);
1544 pa_assert_ctl_context();
1545 pa_assert(PA_SINK_IS_LINKED(s->state));
1547 /* The returned value is supposed to be in the time domain of the sound card! */
1549 if (s->state == PA_SINK_SUSPENDED)
1552 if (!(s->flags & PA_SINK_LATENCY))
1555 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1557 /* the return value is unsigned, so check that the offset can be added to usec without
1559 if (-s->port_latency_offset <= usec)
1560 usec += s->port_latency_offset;
1564 return (pa_usec_t)usec;
1567 /* Called from IO thread */
1568 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1572 pa_sink_assert_ref(s);
1573 pa_sink_assert_io_context(s);
1574 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1576 /* The returned value is supposed to be in the time domain of the sound card! */
1578 if (s->thread_info.state == PA_SINK_SUSPENDED)
1581 if (!(s->flags & PA_SINK_LATENCY))
1584 o = PA_MSGOBJECT(s);
1586 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1588 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1590 /* If allow_negative is false, the call should only return positive values, */
1591 usec += s->thread_info.port_latency_offset;
1592 if (!allow_negative && usec < 0)
1598 /* Called from the main thread (and also from the IO thread while the main
1599 * thread is waiting).
1601 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1602 * set. Instead, flat volume mode is detected by checking whether the root sink
1603 * has the flag set. */
1604 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1605 pa_sink_assert_ref(s);
1607 s = pa_sink_get_master(s);
1610 return (s->flags & PA_SINK_FLAT_VOLUME);
1615 /* Called from the main thread (and also from the IO thread while the main
1616 * thread is waiting). */
1617 pa_sink *pa_sink_get_master(pa_sink *s) {
1618 pa_sink_assert_ref(s);
1620 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1621 if (PA_UNLIKELY(!s->input_to_master))
1624 s = s->input_to_master->sink;
1630 /* Called from main context */
1631 bool pa_sink_is_filter(pa_sink *s) {
1632 pa_sink_assert_ref(s);
1634 return (s->input_to_master != NULL);
1637 /* Called from main context */
1638 bool pa_sink_is_passthrough(pa_sink *s) {
1639 pa_sink_input *alt_i;
1642 pa_sink_assert_ref(s);
1644 /* one and only one PASSTHROUGH input can possibly be connected */
1645 if (pa_idxset_size(s->inputs) == 1) {
1646 alt_i = pa_idxset_first(s->inputs, &idx);
1648 if (pa_sink_input_is_passthrough(alt_i))
1655 /* Called from main context */
1656 void pa_sink_enter_passthrough(pa_sink *s) {
1659 /* The sink implementation is reconfigured for passthrough in
1660 * pa_sink_reconfigure(). This function sets the PA core objects to
1661 * passthrough mode. */
1663 /* disable the monitor in passthrough mode */
1664 if (s->monitor_source) {
1665 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1666 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1669 /* set the volume to NORM */
1670 s->saved_volume = *pa_sink_get_volume(s, true);
1671 s->saved_save_volume = s->save_volume;
1673 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1674 pa_sink_set_volume(s, &volume, true, false);
1676 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1679 /* Called from main context */
1680 void pa_sink_leave_passthrough(pa_sink *s) {
1681 /* Unsuspend monitor */
1682 if (s->monitor_source) {
1683 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1684 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1687 /* Restore sink volume to what it was before we entered passthrough mode */
1688 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1690 pa_cvolume_init(&s->saved_volume);
1691 s->saved_save_volume = false;
1695 /* Called from main context. */
1696 static void compute_reference_ratio(pa_sink_input *i) {
1698 pa_cvolume remapped;
1702 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1705 * Calculates the reference ratio from the sink's reference
1706 * volume. This basically calculates:
1708 * i->reference_ratio = i->volume / i->sink->reference_volume
1711 remapped = i->sink->reference_volume;
1712 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1714 ratio = i->reference_ratio;
1716 for (c = 0; c < i->sample_spec.channels; c++) {
1718 /* We don't update when the sink volume is 0 anyway */
1719 if (remapped.values[c] <= PA_VOLUME_MUTED)
1722 /* Don't update the reference ratio unless necessary */
1723 if (pa_sw_volume_multiply(
1725 remapped.values[c]) == i->volume.values[c])
1728 ratio.values[c] = pa_sw_volume_divide(
1729 i->volume.values[c],
1730 remapped.values[c]);
1733 pa_sink_input_set_reference_ratio(i, &ratio);
1736 /* Called from main context. Only called for the root sink in volume sharing
1737 * cases, except for internal recursive calls. */
1738 static void compute_reference_ratios(pa_sink *s) {
1742 pa_sink_assert_ref(s);
1743 pa_assert_ctl_context();
1744 pa_assert(PA_SINK_IS_LINKED(s->state));
1745 pa_assert(pa_sink_flat_volume_enabled(s));
1747 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1748 compute_reference_ratio(i);
1750 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1751 && PA_SINK_IS_LINKED(i->origin_sink->state))
1752 compute_reference_ratios(i->origin_sink);
1756 /* Called from main context. Only called for the root sink in volume sharing
1757 * cases, except for internal recursive calls. */
1758 static void compute_real_ratios(pa_sink *s) {
1762 pa_sink_assert_ref(s);
1763 pa_assert_ctl_context();
1764 pa_assert(PA_SINK_IS_LINKED(s->state));
1765 pa_assert(pa_sink_flat_volume_enabled(s));
1767 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1769 pa_cvolume remapped;
1771 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1772 /* The origin sink uses volume sharing, so this input's real ratio
1773 * is handled as a special case - the real ratio must be 0 dB, and
1774 * as a result i->soft_volume must equal i->volume_factor. */
1775 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1776 i->soft_volume = i->volume_factor;
1778 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1779 compute_real_ratios(i->origin_sink);
1785 * This basically calculates:
1787 * i->real_ratio := i->volume / s->real_volume
1788 * i->soft_volume := i->real_ratio * i->volume_factor
1791 remapped = s->real_volume;
1792 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1794 i->real_ratio.channels = i->sample_spec.channels;
1795 i->soft_volume.channels = i->sample_spec.channels;
1797 for (c = 0; c < i->sample_spec.channels; c++) {
1799 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1800 /* We leave i->real_ratio untouched */
1801 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1805 /* Don't lose accuracy unless necessary */
1806 if (pa_sw_volume_multiply(
1807 i->real_ratio.values[c],
1808 remapped.values[c]) != i->volume.values[c])
1810 i->real_ratio.values[c] = pa_sw_volume_divide(
1811 i->volume.values[c],
1812 remapped.values[c]);
1814 i->soft_volume.values[c] = pa_sw_volume_multiply(
1815 i->real_ratio.values[c],
1816 i->volume_factor.values[c]);
1819 /* We don't copy the soft_volume to the thread_info data
1820 * here. That must be done by the caller */
1824 static pa_cvolume *cvolume_remap_minimal_impact(
1826 const pa_cvolume *template,
1827 const pa_channel_map *from,
1828 const pa_channel_map *to) {
1833 pa_assert(template);
1836 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1837 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1839 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1840 * mapping from sink input to sink volumes:
1842 * If template is a possible remapping from v it is used instead
1843 * of remapping anew.
1845 * If the channel maps don't match we set an all-channel volume on
1846 * the sink to ensure that changing a volume on one stream has no
1847 * effect that cannot be compensated for in another stream that
1848 * does not have the same channel map as the sink. */
1850 if (pa_channel_map_equal(from, to))
1854 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1859 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1863 /* Called from main thread. Only called for the root sink in volume sharing
1864 * cases, except for internal recursive calls. */
1865 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1869 pa_sink_assert_ref(s);
1870 pa_assert(max_volume);
1871 pa_assert(channel_map);
1872 pa_assert(pa_sink_flat_volume_enabled(s));
1874 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1875 pa_cvolume remapped;
1877 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1878 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1879 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1881 /* Ignore this input. The origin sink uses volume sharing, so this
1882 * input's volume will be set to be equal to the root sink's real
1883 * volume. Obviously this input's current volume must not then
1884 * affect what the root sink's real volume will be. */
1888 remapped = i->volume;
1889 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1890 pa_cvolume_merge(max_volume, max_volume, &remapped);
1894 /* Called from main thread. Only called for the root sink in volume sharing
1895 * cases, except for internal recursive calls. */
1896 static bool has_inputs(pa_sink *s) {
1900 pa_sink_assert_ref(s);
1902 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1903 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1910 /* Called from main thread. Only called for the root sink in volume sharing
1911 * cases, except for internal recursive calls. */
1912 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1916 pa_sink_assert_ref(s);
1917 pa_assert(new_volume);
1918 pa_assert(channel_map);
1920 s->real_volume = *new_volume;
1921 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1923 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1924 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1925 if (pa_sink_flat_volume_enabled(s)) {
1926 pa_cvolume new_input_volume;
1928 /* Follow the root sink's real volume. */
1929 new_input_volume = *new_volume;
1930 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1931 pa_sink_input_set_volume_direct(i, &new_input_volume);
1932 compute_reference_ratio(i);
1935 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1936 update_real_volume(i->origin_sink, new_volume, channel_map);
1941 /* Called from main thread. Only called for the root sink in shared volume
1943 static void compute_real_volume(pa_sink *s) {
1944 pa_sink_assert_ref(s);
1945 pa_assert_ctl_context();
1946 pa_assert(PA_SINK_IS_LINKED(s->state));
1947 pa_assert(pa_sink_flat_volume_enabled(s));
1948 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1950 /* This determines the maximum volume of all streams and sets
1951 * s->real_volume accordingly. */
1953 if (!has_inputs(s)) {
1954 /* In the special case that we have no sink inputs we leave the
1955 * volume unmodified. */
1956 update_real_volume(s, &s->reference_volume, &s->channel_map);
1960 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1962 /* First let's determine the new maximum volume of all inputs
1963 * connected to this sink */
1964 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1965 update_real_volume(s, &s->real_volume, &s->channel_map);
1967 /* Then, let's update the real ratios/soft volumes of all inputs
1968 * connected to this sink */
1969 compute_real_ratios(s);
1972 /* Called from main thread. Only called for the root sink in shared volume
1973 * cases, except for internal recursive calls. */
1974 static void propagate_reference_volume(pa_sink *s) {
1978 pa_sink_assert_ref(s);
1979 pa_assert_ctl_context();
1980 pa_assert(PA_SINK_IS_LINKED(s->state));
1981 pa_assert(pa_sink_flat_volume_enabled(s));
1983 /* This is called whenever the sink volume changes that is not
1984 * caused by a sink input volume change. We need to fix up the
1985 * sink input volumes accordingly */
1987 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1988 pa_cvolume new_volume;
1990 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1991 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1992 propagate_reference_volume(i->origin_sink);
1994 /* Since the origin sink uses volume sharing, this input's volume
1995 * needs to be updated to match the root sink's real volume, but
1996 * that will be done later in update_real_volume(). */
2000 /* This basically calculates:
2002 * i->volume := s->reference_volume * i->reference_ratio */
2004 new_volume = s->reference_volume;
2005 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2006 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2007 pa_sink_input_set_volume_direct(i, &new_volume);
2011 /* Called from main thread. Only called for the root sink in volume sharing
2012 * cases, except for internal recursive calls. The return value indicates
2013 * whether any reference volume actually changed. */
2014 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2016 bool reference_volume_changed;
2020 pa_sink_assert_ref(s);
2021 pa_assert(PA_SINK_IS_LINKED(s->state));
2023 pa_assert(channel_map);
2024 pa_assert(pa_cvolume_valid(v));
2027 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2029 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2030 pa_sink_set_reference_volume_direct(s, &volume);
2032 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2034 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2035 /* If the root sink's volume doesn't change, then there can't be any
2036 * changes in the other sinks in the sink tree either.
2038 * It's probably theoretically possible that even if the root sink's
2039 * volume changes slightly, some filter sink doesn't change its volume
2040 * due to rounding errors. If that happens, we still want to propagate
2041 * the changed root sink volume to the sinks connected to the
2042 * intermediate sink that didn't change its volume. This theoretical
2043 * possibility is the reason why we have that !(s->flags &
2044 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2045 * notice even if we returned here false always if
2046 * reference_volume_changed is false. */
2049 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2050 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2051 && PA_SINK_IS_LINKED(i->origin_sink->state))
2052 update_reference_volume(i->origin_sink, v, channel_map, false);
2058 /* Called from main thread */
2059 void pa_sink_set_volume(
2061 const pa_cvolume *volume,
2065 pa_cvolume new_reference_volume;
2068 pa_sink_assert_ref(s);
2069 pa_assert_ctl_context();
2070 pa_assert(PA_SINK_IS_LINKED(s->state));
2071 pa_assert(!volume || pa_cvolume_valid(volume));
2072 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2073 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2075 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2076 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2077 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2078 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2082 /* In case of volume sharing, the volume is set for the root sink first,
2083 * from which it's then propagated to the sharing sinks. */
2084 root_sink = pa_sink_get_master(s);
2086 if (PA_UNLIKELY(!root_sink))
2089 /* As a special exception we accept mono volumes on all sinks --
2090 * even on those with more complex channel maps */
2093 if (pa_cvolume_compatible(volume, &s->sample_spec))
2094 new_reference_volume = *volume;
2096 new_reference_volume = s->reference_volume;
2097 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2100 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2102 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2103 if (pa_sink_flat_volume_enabled(root_sink)) {
2104 /* OK, propagate this volume change back to the inputs */
2105 propagate_reference_volume(root_sink);
2107 /* And now recalculate the real volume */
2108 compute_real_volume(root_sink);
2110 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2114 /* If volume is NULL we synchronize the sink's real and
2115 * reference volumes with the stream volumes. */
2117 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2119 /* Ok, let's determine the new real volume */
2120 compute_real_volume(root_sink);
2122 /* Let's 'push' the reference volume if necessary */
2123 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2124 /* If the sink and its root don't have the same number of channels, we need to remap */
2125 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2126 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2127 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2129 /* Now that the reference volume is updated, we can update the streams'
2130 * reference ratios. */
2131 compute_reference_ratios(root_sink);
2134 if (root_sink->set_volume) {
2135 /* If we have a function set_volume(), then we do not apply a
2136 * soft volume by default. However, set_volume() is free to
2137 * apply one to root_sink->soft_volume */
2139 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2140 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2141 root_sink->set_volume(root_sink);
2144 /* If we have no function set_volume(), then the soft volume
2145 * becomes the real volume */
2146 root_sink->soft_volume = root_sink->real_volume;
2148 /* This tells the sink that soft volume and/or real volume changed */
2150 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2153 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2154 * Only to be called by sink implementor */
2155 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2157 pa_sink_assert_ref(s);
2158 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2160 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2161 pa_sink_assert_io_context(s);
2163 pa_assert_ctl_context();
2166 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2168 s->soft_volume = *volume;
2170 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2171 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2173 s->thread_info.soft_volume = s->soft_volume;
2176 /* Called from the main thread. Only called for the root sink in volume sharing
2177 * cases, except for internal recursive calls. */
2178 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2182 pa_sink_assert_ref(s);
2183 pa_assert(old_real_volume);
2184 pa_assert_ctl_context();
2185 pa_assert(PA_SINK_IS_LINKED(s->state));
2187 /* This is called when the hardware's real volume changes due to
2188 * some external event. We copy the real volume into our
2189 * reference volume and then rebuild the stream volumes based on
2190 * i->real_ratio which should stay fixed. */
2192 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2193 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2196 /* 1. Make the real volume the reference volume */
2197 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2200 if (pa_sink_flat_volume_enabled(s)) {
2202 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2203 pa_cvolume new_volume;
2205 /* 2. Since the sink's reference and real volumes are equal
2206 * now our ratios should be too. */
2207 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2209 /* 3. Recalculate the new stream reference volume based on the
2210 * reference ratio and the sink's reference volume.
2212 * This basically calculates:
2214 * i->volume = s->reference_volume * i->reference_ratio
2216 * This is identical to propagate_reference_volume() */
2217 new_volume = s->reference_volume;
2218 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2219 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2220 pa_sink_input_set_volume_direct(i, &new_volume);
2222 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2223 && PA_SINK_IS_LINKED(i->origin_sink->state))
2224 propagate_real_volume(i->origin_sink, old_real_volume);
2228 /* Something got changed in the hardware. It probably makes sense
2229 * to save changed hw settings given that hw volume changes not
2230 * triggered by PA are almost certainly done by the user. */
2231 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2232 s->save_volume = true;
2235 /* Called from io thread */
2236 void pa_sink_update_volume_and_mute(pa_sink *s) {
2238 pa_sink_assert_io_context(s);
2240 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2243 /* Called from main thread */
2244 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2245 pa_sink_assert_ref(s);
2246 pa_assert_ctl_context();
2247 pa_assert(PA_SINK_IS_LINKED(s->state));
2249 if (s->refresh_volume || force_refresh) {
2250 struct pa_cvolume old_real_volume;
2252 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2254 old_real_volume = s->real_volume;
2256 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2259 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2261 update_real_volume(s, &s->real_volume, &s->channel_map);
2262 propagate_real_volume(s, &old_real_volume);
2265 return &s->reference_volume;
2268 /* Called from main thread. In volume sharing cases, only the root sink may
2270 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2271 pa_cvolume old_real_volume;
2273 pa_sink_assert_ref(s);
2274 pa_assert_ctl_context();
2275 pa_assert(PA_SINK_IS_LINKED(s->state));
2276 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2278 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2280 old_real_volume = s->real_volume;
2281 update_real_volume(s, new_real_volume, &s->channel_map);
2282 propagate_real_volume(s, &old_real_volume);
2285 /* Called from main thread */
2286 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2289 pa_sink_assert_ref(s);
2290 pa_assert_ctl_context();
2292 old_muted = s->muted;
2294 if (mute == old_muted) {
2295 s->save_muted |= save;
2300 s->save_muted = save;
2302 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2303 s->set_mute_in_progress = true;
2305 s->set_mute_in_progress = false;
2308 if (!PA_SINK_IS_LINKED(s->state))
2311 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2312 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2313 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2314 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2317 /* Called from main thread */
2318 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2320 pa_sink_assert_ref(s);
2321 pa_assert_ctl_context();
2322 pa_assert(PA_SINK_IS_LINKED(s->state));
2324 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2327 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2328 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2329 pa_sink_mute_changed(s, mute);
2331 if (s->get_mute(s, &mute) >= 0)
2332 pa_sink_mute_changed(s, mute);
2339 /* Called from main thread */
2340 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2341 pa_sink_assert_ref(s);
2342 pa_assert_ctl_context();
2343 pa_assert(PA_SINK_IS_LINKED(s->state));
2345 if (s->set_mute_in_progress)
2348 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2349 * but we must have this here also, because the save parameter of
2350 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2351 * the mute state when it shouldn't be saved). */
2352 if (new_muted == s->muted)
2355 pa_sink_set_mute(s, new_muted, true);
2358 /* Called from main thread */
2359 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2360 pa_sink_assert_ref(s);
2361 pa_assert_ctl_context();
2364 pa_proplist_update(s->proplist, mode, p);
2366 if (PA_SINK_IS_LINKED(s->state)) {
2367 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2368 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2374 /* Called from main thread */
2375 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2376 void pa_sink_set_description(pa_sink *s, const char *description) {
2378 pa_sink_assert_ref(s);
2379 pa_assert_ctl_context();
2381 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2384 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2386 if (old && description && pa_streq(old, description))
2390 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2392 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2394 if (s->monitor_source) {
2397 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2398 pa_source_set_description(s->monitor_source, n);
2402 if (PA_SINK_IS_LINKED(s->state)) {
2403 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2404 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2408 /* Called from main thread */
2409 unsigned pa_sink_linked_by(pa_sink *s) {
2412 pa_sink_assert_ref(s);
2413 pa_assert_ctl_context();
2414 pa_assert(PA_SINK_IS_LINKED(s->state));
2416 ret = pa_idxset_size(s->inputs);
2418 /* We add in the number of streams connected to us here. Please
2419 * note the asymmetry to pa_sink_used_by()! */
2421 if (s->monitor_source)
2422 ret += pa_source_linked_by(s->monitor_source);
2427 /* Called from main thread */
2428 unsigned pa_sink_used_by(pa_sink *s) {
2431 pa_sink_assert_ref(s);
2432 pa_assert_ctl_context();
2433 pa_assert(PA_SINK_IS_LINKED(s->state));
2435 ret = pa_idxset_size(s->inputs);
2436 pa_assert(ret >= s->n_corked);
2438 /* Streams connected to our monitor source do not matter for
2439 * pa_sink_used_by()!.*/
2441 return ret - s->n_corked;
2444 /* Called from main thread */
2445 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2450 pa_sink_assert_ref(s);
2451 pa_assert_ctl_context();
2453 if (!PA_SINK_IS_LINKED(s->state))
2458 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2459 if (i == ignore_input)
2462 /* We do not assert here. It is perfectly valid for a sink input to
2463 * be in the INIT state (i.e. created, marked done but not yet put)
2464 * and we should not care if it's unlinked as it won't contribute
2465 * towards our busy status.
2467 if (!PA_SINK_INPUT_IS_LINKED(i->state))
2470 if (i->state == PA_SINK_INPUT_CORKED)
2473 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2479 if (s->monitor_source)
2480 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2485 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2487 case PA_SINK_INIT: return "INIT";
2488 case PA_SINK_IDLE: return "IDLE";
2489 case PA_SINK_RUNNING: return "RUNNING";
2490 case PA_SINK_SUSPENDED: return "SUSPENDED";
2491 case PA_SINK_UNLINKED: return "UNLINKED";
2492 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2495 pa_assert_not_reached();
2498 /* Called from the IO thread */
2499 static void sync_input_volumes_within_thread(pa_sink *s) {
2503 pa_sink_assert_ref(s);
2504 pa_sink_assert_io_context(s);
2506 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2507 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2510 i->thread_info.soft_volume = i->soft_volume;
2511 pa_sink_input_request_rewind(i, 0, true, false, false);
2515 /* Called from the IO thread. Only called for the root sink in volume sharing
2516 * cases, except for internal recursive calls. */
2517 static void set_shared_volume_within_thread(pa_sink *s) {
2518 pa_sink_input *i = NULL;
2521 pa_sink_assert_ref(s);
2523 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2525 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2526 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2527 set_shared_volume_within_thread(i->origin_sink);
2531 /* Called from IO thread, except when it is not */
2532 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2533 pa_sink *s = PA_SINK(o);
2534 pa_sink_assert_ref(s);
2536 switch ((pa_sink_message_t) code) {
2538 case PA_SINK_MESSAGE_ADD_INPUT: {
2539 pa_sink_input *i = PA_SINK_INPUT(userdata);
2541 /* If you change anything here, make sure to change the
2542 * sink input handling a few lines down at
2543 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2545 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2547 /* Since the caller sleeps in pa_sink_input_put(), we can
2548 * safely access data outside of thread_info even though
2551 if ((i->thread_info.sync_prev = i->sync_prev)) {
2552 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2553 pa_assert(i->sync_prev->sync_next == i);
2554 i->thread_info.sync_prev->thread_info.sync_next = i;
2557 if ((i->thread_info.sync_next = i->sync_next)) {
2558 pa_assert(i->sink == i->thread_info.sync_next->sink);
2559 pa_assert(i->sync_next->sync_prev == i);
2560 i->thread_info.sync_next->thread_info.sync_prev = i;
2563 pa_sink_input_attach(i);
2565 pa_sink_input_set_state_within_thread(i, i->state);
2567 /* The requested latency of the sink input needs to be fixed up and
2568 * then configured on the sink. If this causes the sink latency to
2569 * go down, the sink implementor is responsible for doing a rewind
2570 * in the update_requested_latency() callback to ensure that the
2571 * sink buffer doesn't contain more data than what the new latency
2574 * XXX: Does it really make sense to push this responsibility to
2575 * the sink implementors? Wouldn't it be better to do it once in
2576 * the core than many times in the modules? */
2578 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2579 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2581 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2582 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2584 /* We don't rewind here automatically. This is left to the
2585 * sink input implementor because some sink inputs need a
2586 * slow start, i.e. need some time to buffer client
2587 * samples before beginning streaming.
2589 * XXX: Does it really make sense to push this functionality to
2590 * the sink implementors? Wouldn't it be better to do it once in
2591 * the core than many times in the modules? */
2593 /* In flat volume mode we need to update the volume as
2595 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2598 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2599 pa_sink_input *i = PA_SINK_INPUT(userdata);
2601 /* If you change anything here, make sure to change the
2602 * sink input handling a few lines down at
2603 * PA_SINK_MESSAGE_START_MOVE, too. */
2605 pa_sink_input_detach(i);
2607 pa_sink_input_set_state_within_thread(i, i->state);
2609 /* Since the caller sleeps in pa_sink_input_unlink(),
2610 * we can safely access data outside of thread_info even
2611 * though it is mutable */
2613 pa_assert(!i->sync_prev);
2614 pa_assert(!i->sync_next);
2616 if (i->thread_info.sync_prev) {
2617 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2618 i->thread_info.sync_prev = NULL;
2621 if (i->thread_info.sync_next) {
2622 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2623 i->thread_info.sync_next = NULL;
2626 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2627 pa_sink_invalidate_requested_latency(s, true);
2628 pa_sink_request_rewind(s, (size_t) -1);
2630 /* In flat volume mode we need to update the volume as
2632 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2635 case PA_SINK_MESSAGE_START_MOVE: {
2636 pa_sink_input *i = PA_SINK_INPUT(userdata);
2638 /* We don't support moving synchronized streams. */
2639 pa_assert(!i->sync_prev);
2640 pa_assert(!i->sync_next);
2641 pa_assert(!i->thread_info.sync_next);
2642 pa_assert(!i->thread_info.sync_prev);
2644 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2646 size_t sink_nbytes, total_nbytes;
2648 /* The old sink probably has some audio from this
2649 * stream in its buffer. We want to "take it back" as
2650 * much as possible and play it to the new sink. We
2651 * don't know at this point how much the old sink can
2652 * rewind. We have to pick something, and that
2653 * something is the full latency of the old sink here.
2654 * So we rewind the stream buffer by the sink latency
2655 * amount, which may be more than what we should
2656 * rewind. This can result in a chunk of audio being
2657 * played both to the old sink and the new sink.
2659 * FIXME: Fix this code so that we don't have to make
2660 * guesses about how much the sink will actually be
2661 * able to rewind. If someone comes up with a solution
2662 * for this, something to note is that the part of the
2663 * latency that the old sink couldn't rewind should
2664 * ideally be compensated after the stream has moved
2665 * to the new sink by adding silence. The new sink
2666 * most likely can't start playing the moved stream
2667 * immediately, and that gap should be removed from
2668 * the "compensation silence" (at least at the time of
2669 * writing this, the move finish code will actually
2670 * already take care of dropping the new sink's
2671 * unrewindable latency, so taking into account the
2672 * unrewindable latency of the old sink is the only
2675 * The render_memblockq contents are discarded,
2676 * because when the sink changes, the format of the
2677 * audio stored in the render_memblockq may change
2678 * too, making the stored audio invalid. FIXME:
2679 * However, the read and write indices are moved back
2680 * the same amount, so if they are not the same now,
2681 * they won't be the same after the rewind either. If
2682 * the write index of the render_memblockq is ahead of
2683 * the read index, then the render_memblockq will feed
2684 * the new sink some silence first, which it shouldn't
2685 * do. The write index should be flushed to be the
2686 * same as the read index. */
2688 /* Get the latency of the sink */
2689 usec = pa_sink_get_latency_within_thread(s, false);
2690 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2691 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2693 if (total_nbytes > 0) {
2694 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2695 i->thread_info.rewrite_flush = true;
2696 pa_sink_input_process_rewind(i, sink_nbytes);
2700 pa_sink_input_detach(i);
2702 /* Let's remove the sink input ...*/
2703 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2705 pa_sink_invalidate_requested_latency(s, true);
2707 pa_log_debug("Requesting rewind due to started move");
2708 pa_sink_request_rewind(s, (size_t) -1);
2710 /* In flat volume mode we need to update the volume as
2712 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2715 case PA_SINK_MESSAGE_FINISH_MOVE: {
2716 pa_sink_input *i = PA_SINK_INPUT(userdata);
2718 /* We don't support moving synchronized streams. */
2719 pa_assert(!i->sync_prev);
2720 pa_assert(!i->sync_next);
2721 pa_assert(!i->thread_info.sync_next);
2722 pa_assert(!i->thread_info.sync_prev);
2724 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2726 pa_sink_input_attach(i);
2728 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2732 /* In the ideal case the new sink would start playing
2733 * the stream immediately. That requires the sink to
2734 * be able to rewind all of its latency, which usually
2735 * isn't possible, so there will probably be some gap
2736 * before the moved stream becomes audible. We then
2737 * have two possibilities: 1) start playing the stream
2738 * from where it is now, or 2) drop the unrewindable
2739 * latency of the sink from the stream. With option 1
2740 * we won't lose any audio but the stream will have a
2741 * pause. With option 2 we may lose some audio but the
2742 * stream time will be somewhat in sync with the wall
2743 * clock. Lennart seems to have chosen option 2 (one
2744 * of the reasons might have been that option 1 is
2745 * actually much harder to implement), so we drop the
2746 * latency of the new sink from the moved stream and
2747 * hope that the sink will undo most of that in the
2750 /* Get the latency of the sink */
2751 usec = pa_sink_get_latency_within_thread(s, false);
2752 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2755 pa_sink_input_drop(i, nbytes);
2757 pa_log_debug("Requesting rewind due to finished move");
2758 pa_sink_request_rewind(s, nbytes);
2761 /* Updating the requested sink latency has to be done
2762 * after the sink rewind request, not before, because
2763 * otherwise the sink may limit the rewind amount
2766 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2767 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2769 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2770 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2772 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2775 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2776 pa_sink *root_sink = pa_sink_get_master(s);
2778 if (PA_LIKELY(root_sink))
2779 set_shared_volume_within_thread(root_sink);
2784 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2786 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2788 pa_sink_volume_change_push(s);
2790 /* Fall through ... */
2792 case PA_SINK_MESSAGE_SET_VOLUME:
2794 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2795 s->thread_info.soft_volume = s->soft_volume;
2796 pa_sink_request_rewind(s, (size_t) -1);
2799 /* Fall through ... */
2801 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2802 sync_input_volumes_within_thread(s);
2805 case PA_SINK_MESSAGE_GET_VOLUME:
2807 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2809 pa_sink_volume_change_flush(s);
2810 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2813 /* In case sink implementor reset SW volume. */
2814 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2815 s->thread_info.soft_volume = s->soft_volume;
2816 pa_sink_request_rewind(s, (size_t) -1);
2821 case PA_SINK_MESSAGE_SET_MUTE:
2823 if (s->thread_info.soft_muted != s->muted) {
2824 s->thread_info.soft_muted = s->muted;
2825 pa_sink_request_rewind(s, (size_t) -1);
2828 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2833 case PA_SINK_MESSAGE_GET_MUTE:
2835 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2836 return s->get_mute(s, userdata);
2840 case PA_SINK_MESSAGE_SET_STATE: {
2841 struct set_state_data *data = userdata;
2842 bool suspend_change =
2843 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(data->state)) ||
2844 (PA_SINK_IS_OPENED(s->thread_info.state) && data->state == PA_SINK_SUSPENDED);
2846 if (s->set_state_in_io_thread) {
2849 if ((r = s->set_state_in_io_thread(s, data->state, data->suspend_cause)) < 0)
2853 s->thread_info.state = data->state;
2855 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2856 s->thread_info.rewind_nbytes = 0;
2857 s->thread_info.rewind_requested = false;
2860 if (suspend_change) {
2864 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2865 if (i->suspend_within_thread)
2866 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2872 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2874 pa_usec_t *usec = userdata;
2875 *usec = pa_sink_get_requested_latency_within_thread(s);
2877 /* Yes, that's right, the IO thread will see -1 when no
2878 * explicit requested latency is configured, the main
2879 * thread will see max_latency */
2880 if (*usec == (pa_usec_t) -1)
2881 *usec = s->thread_info.max_latency;
2886 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2887 pa_usec_t *r = userdata;
2889 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2894 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2895 pa_usec_t *r = userdata;
2897 r[0] = s->thread_info.min_latency;
2898 r[1] = s->thread_info.max_latency;
2903 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2905 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2908 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2910 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2913 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2915 *((size_t*) userdata) = s->thread_info.max_rewind;
2918 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2920 *((size_t*) userdata) = s->thread_info.max_request;
2923 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2925 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2928 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2930 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2933 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2934 /* This message is sent from IO-thread and handled in main thread. */
2935 pa_assert_ctl_context();
2937 /* Make sure we're not messing with main thread when no longer linked */
2938 if (!PA_SINK_IS_LINKED(s->state))
2941 pa_sink_get_volume(s, true);
2942 pa_sink_get_mute(s, true);
2945 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2946 s->thread_info.port_latency_offset = offset;
2949 case PA_SINK_MESSAGE_GET_LATENCY:
2950 case PA_SINK_MESSAGE_MAX:
2957 /* Called from main thread */
2958 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2963 pa_core_assert_ref(c);
2964 pa_assert_ctl_context();
2965 pa_assert(cause != 0);
2967 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2970 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2977 /* Called from IO thread */
2978 void pa_sink_detach_within_thread(pa_sink *s) {
2982 pa_sink_assert_ref(s);
2983 pa_sink_assert_io_context(s);
2984 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2986 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2987 pa_sink_input_detach(i);
2989 if (s->monitor_source)
2990 pa_source_detach_within_thread(s->monitor_source);
2993 /* Called from IO thread */
2994 void pa_sink_attach_within_thread(pa_sink *s) {
2998 pa_sink_assert_ref(s);
2999 pa_sink_assert_io_context(s);
3000 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3002 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3003 pa_sink_input_attach(i);
3005 if (s->monitor_source)
3006 pa_source_attach_within_thread(s->monitor_source);
3009 /* Called from IO thread */
3010 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3011 pa_sink_assert_ref(s);
3012 pa_sink_assert_io_context(s);
3013 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3015 if (nbytes == (size_t) -1)
3016 nbytes = s->thread_info.max_rewind;
3018 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3020 if (s->thread_info.rewind_requested &&
3021 nbytes <= s->thread_info.rewind_nbytes)
3024 s->thread_info.rewind_nbytes = nbytes;
3025 s->thread_info.rewind_requested = true;
3027 if (s->request_rewind)
3028 s->request_rewind(s);
3031 /* Called from IO thread */
3032 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3033 pa_usec_t result = (pa_usec_t) -1;
3036 pa_usec_t monitor_latency;
3038 pa_sink_assert_ref(s);
3039 pa_sink_assert_io_context(s);
3041 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3042 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3044 if (s->thread_info.requested_latency_valid)
3045 return s->thread_info.requested_latency;
3047 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3048 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3049 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3050 result = i->thread_info.requested_sink_latency;
3052 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3054 if (monitor_latency != (pa_usec_t) -1 &&
3055 (result == (pa_usec_t) -1 || result > monitor_latency))
3056 result = monitor_latency;
3058 if (result != (pa_usec_t) -1)
3059 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3061 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3062 /* Only cache if properly initialized */
3063 s->thread_info.requested_latency = result;
3064 s->thread_info.requested_latency_valid = true;
3070 /* Called from main thread */
3071 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3074 pa_sink_assert_ref(s);
3075 pa_assert_ctl_context();
3076 pa_assert(PA_SINK_IS_LINKED(s->state));
3078 if (s->state == PA_SINK_SUSPENDED)
3081 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3086 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3087 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3091 pa_sink_assert_ref(s);
3092 pa_sink_assert_io_context(s);
3094 if (max_rewind == s->thread_info.max_rewind)
3097 s->thread_info.max_rewind = max_rewind;
3099 if (PA_SINK_IS_LINKED(s->thread_info.state))
3100 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3101 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3103 if (s->monitor_source)
3104 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3107 /* Called from main thread */
3108 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3109 pa_sink_assert_ref(s);
3110 pa_assert_ctl_context();
3112 if (PA_SINK_IS_LINKED(s->state))
3113 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3115 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3118 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3119 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3122 pa_sink_assert_ref(s);
3123 pa_sink_assert_io_context(s);
3125 if (max_request == s->thread_info.max_request)
3128 s->thread_info.max_request = max_request;
3130 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3133 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3134 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3138 /* Called from main thread */
3139 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3140 pa_sink_assert_ref(s);
3141 pa_assert_ctl_context();
3143 if (PA_SINK_IS_LINKED(s->state))
3144 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3146 pa_sink_set_max_request_within_thread(s, max_request);
3149 /* Called from IO thread */
3150 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3154 pa_sink_assert_ref(s);
3155 pa_sink_assert_io_context(s);
3157 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3158 s->thread_info.requested_latency_valid = false;
3162 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3164 if (s->update_requested_latency)
3165 s->update_requested_latency(s);
3167 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3168 if (i->update_sink_requested_latency)
3169 i->update_sink_requested_latency(i);
3173 /* Called from main thread */
3174 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3175 pa_sink_assert_ref(s);
3176 pa_assert_ctl_context();
3178 /* min_latency == 0: no limit
3179 * min_latency anything else: specified limit
3181 * Similar for max_latency */
3183 if (min_latency < ABSOLUTE_MIN_LATENCY)
3184 min_latency = ABSOLUTE_MIN_LATENCY;
3186 if (max_latency <= 0 ||
3187 max_latency > ABSOLUTE_MAX_LATENCY)
3188 max_latency = ABSOLUTE_MAX_LATENCY;
3190 pa_assert(min_latency <= max_latency);
3192 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3193 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3194 max_latency == ABSOLUTE_MAX_LATENCY) ||
3195 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3197 if (PA_SINK_IS_LINKED(s->state)) {
3203 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3205 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3208 /* Called from main thread */
3209 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3210 pa_sink_assert_ref(s);
3211 pa_assert_ctl_context();
3212 pa_assert(min_latency);
3213 pa_assert(max_latency);
3215 if (PA_SINK_IS_LINKED(s->state)) {
3216 pa_usec_t r[2] = { 0, 0 };
3218 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3220 *min_latency = r[0];
3221 *max_latency = r[1];
3223 *min_latency = s->thread_info.min_latency;
3224 *max_latency = s->thread_info.max_latency;
3228 /* Called from IO thread */
3229 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3230 pa_sink_assert_ref(s);
3231 pa_sink_assert_io_context(s);
3233 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3234 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3235 pa_assert(min_latency <= max_latency);
3237 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3238 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3239 max_latency == ABSOLUTE_MAX_LATENCY) ||
3240 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3242 if (s->thread_info.min_latency == min_latency &&
3243 s->thread_info.max_latency == max_latency)
3246 s->thread_info.min_latency = min_latency;
3247 s->thread_info.max_latency = max_latency;
3249 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3253 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3254 if (i->update_sink_latency_range)
3255 i->update_sink_latency_range(i);
3258 pa_sink_invalidate_requested_latency(s, false);
3260 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3263 /* Called from main thread */
3264 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3265 pa_sink_assert_ref(s);
3266 pa_assert_ctl_context();
3268 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3269 pa_assert(latency == 0);
3273 if (latency < ABSOLUTE_MIN_LATENCY)
3274 latency = ABSOLUTE_MIN_LATENCY;
3276 if (latency > ABSOLUTE_MAX_LATENCY)
3277 latency = ABSOLUTE_MAX_LATENCY;
3279 if (PA_SINK_IS_LINKED(s->state))
3280 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3282 s->thread_info.fixed_latency = latency;
3284 pa_source_set_fixed_latency(s->monitor_source, latency);
3287 /* Called from main thread */
3288 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3291 pa_sink_assert_ref(s);
3292 pa_assert_ctl_context();
3294 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3297 if (PA_SINK_IS_LINKED(s->state))
3298 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3300 latency = s->thread_info.fixed_latency;
3305 /* Called from IO thread */
3306 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3307 pa_sink_assert_ref(s);
3308 pa_sink_assert_io_context(s);
3310 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3311 pa_assert(latency == 0);
3312 s->thread_info.fixed_latency = 0;
3314 if (s->monitor_source)
3315 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3320 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3321 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3323 if (s->thread_info.fixed_latency == latency)
3326 s->thread_info.fixed_latency = latency;
3328 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3332 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3333 if (i->update_sink_fixed_latency)
3334 i->update_sink_fixed_latency(i);
3337 pa_sink_invalidate_requested_latency(s, false);
3339 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3342 /* Called from main context */
3343 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3344 pa_sink_assert_ref(s);
3346 s->port_latency_offset = offset;
3348 if (PA_SINK_IS_LINKED(s->state))
3349 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3351 s->thread_info.port_latency_offset = offset;
3353 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3356 /* Called from main context */
3357 size_t pa_sink_get_max_rewind(pa_sink *s) {
3359 pa_assert_ctl_context();
3360 pa_sink_assert_ref(s);
3362 if (!PA_SINK_IS_LINKED(s->state))
3363 return s->thread_info.max_rewind;
3365 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3370 /* Called from main context */
3371 size_t pa_sink_get_max_request(pa_sink *s) {
3373 pa_sink_assert_ref(s);
3374 pa_assert_ctl_context();
3376 if (!PA_SINK_IS_LINKED(s->state))
3377 return s->thread_info.max_request;
3379 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3384 /* Called from main context */
3385 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3386 pa_device_port *port;
3388 pa_sink_assert_ref(s);
3389 pa_assert_ctl_context();
3392 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3393 return -PA_ERR_NOTIMPLEMENTED;
3397 return -PA_ERR_NOENTITY;
3399 if (!(port = pa_hashmap_get(s->ports, name)))
3400 return -PA_ERR_NOENTITY;
3402 if (s->active_port == port) {
3403 s->save_port = s->save_port || save;
3407 if (s->set_port(s, port) < 0)
3408 return -PA_ERR_NOENTITY;
3410 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3412 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3414 s->active_port = port;
3415 s->save_port = save;
3417 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3419 /* The active port affects the default sink selection. */
3420 pa_core_update_default_sink(s->core);
3422 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3427 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3428 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3432 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3435 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3437 if (pa_streq(ff, "microphone"))
3438 t = "audio-input-microphone";
3439 else if (pa_streq(ff, "webcam"))
3441 else if (pa_streq(ff, "computer"))
3443 else if (pa_streq(ff, "handset"))
3445 else if (pa_streq(ff, "portable"))
3446 t = "multimedia-player";
3447 else if (pa_streq(ff, "tv"))
3448 t = "video-display";
3451 * The following icons are not part of the icon naming spec,
3452 * because Rodney Dawes sucks as the maintainer of that spec.
3454 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3456 else if (pa_streq(ff, "headset"))
3457 t = "audio-headset";
3458 else if (pa_streq(ff, "headphone"))
3459 t = "audio-headphones";
3460 else if (pa_streq(ff, "speaker"))
3461 t = "audio-speakers";
3462 else if (pa_streq(ff, "hands-free"))
3463 t = "audio-handsfree";
3467 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3468 if (pa_streq(c, "modem"))
3475 t = "audio-input-microphone";
3478 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3479 if (strstr(profile, "analog"))
3481 else if (strstr(profile, "iec958"))
3483 else if (strstr(profile, "hdmi"))
3487 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3489 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3494 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3495 const char *s, *d = NULL, *k;
3498 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3502 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3506 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3507 if (pa_streq(s, "internal"))
3508 d = _("Built-in Audio");
3511 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3512 if (pa_streq(s, "modem"))
3516 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3521 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3524 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3526 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3531 bool pa_device_init_intended_roles(pa_proplist *p) {
3535 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3538 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3539 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3540 || pa_streq(s, "headset")) {
3541 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3548 unsigned pa_device_init_priority(pa_proplist *p) {
3550 unsigned priority = 0;
3554 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3556 if (pa_streq(s, "sound"))
3558 else if (!pa_streq(s, "modem"))
3562 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3564 if (pa_streq(s, "headphone"))
3566 else if (pa_streq(s, "hifi"))
3568 else if (pa_streq(s, "speaker"))
3570 else if (pa_streq(s, "portable"))
3574 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3576 if (pa_streq(s, "bluetooth"))
3578 else if (pa_streq(s, "usb"))
3580 else if (pa_streq(s, "pci"))
3584 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3586 if (pa_startswith(s, "analog-"))
3588 else if (pa_startswith(s, "iec958-"))
3595 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3597 /* Called from the IO thread. */
3598 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3599 pa_sink_volume_change *c;
3600 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3601 c = pa_xnew(pa_sink_volume_change, 1);
3603 PA_LLIST_INIT(pa_sink_volume_change, c);
3605 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3609 /* Called from the IO thread. */
3610 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3612 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3616 /* Called from the IO thread. */
3617 void pa_sink_volume_change_push(pa_sink *s) {
3618 pa_sink_volume_change *c = NULL;
3619 pa_sink_volume_change *nc = NULL;
3620 pa_sink_volume_change *pc = NULL;
3621 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3623 const char *direction = NULL;
3626 nc = pa_sink_volume_change_new(s);
3628 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3629 * Adding one more volume for HW would get us rid of this, but I am trying
3630 * to survive with the ones we already have. */
3631 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3633 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3634 pa_log_debug("Volume not changing");
3635 pa_sink_volume_change_free(nc);
3639 nc->at = pa_sink_get_latency_within_thread(s, false);
3640 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3642 if (s->thread_info.volume_changes_tail) {
3643 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3644 /* If volume is going up let's do it a bit late. If it is going
3645 * down let's do it a bit early. */
3646 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3647 if (nc->at + safety_margin > c->at) {
3648 nc->at += safety_margin;
3653 else if (nc->at - safety_margin > c->at) {
3654 nc->at -= safety_margin;
3662 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3663 nc->at += safety_margin;
3666 nc->at -= safety_margin;
3669 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3672 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3675 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3677 /* We can ignore volume events that came earlier but should happen later than this. */
3678 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3679 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3680 pa_sink_volume_change_free(c);
3683 s->thread_info.volume_changes_tail = nc;
3686 /* Called from the IO thread. */
3687 static void pa_sink_volume_change_flush(pa_sink *s) {
3688 pa_sink_volume_change *c = s->thread_info.volume_changes;
3690 s->thread_info.volume_changes = NULL;
3691 s->thread_info.volume_changes_tail = NULL;
3693 pa_sink_volume_change *next = c->next;
3694 pa_sink_volume_change_free(c);
3699 /* Called from the IO thread. */
3700 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3706 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3712 pa_assert(s->write_volume);
3714 now = pa_rtclock_now();
3716 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3717 pa_sink_volume_change *c = s->thread_info.volume_changes;
3718 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3719 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3720 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3722 s->thread_info.current_hw_volume = c->hw_volume;
3723 pa_sink_volume_change_free(c);
3729 if (s->thread_info.volume_changes) {
3731 *usec_to_next = s->thread_info.volume_changes->at - now;
3732 if (pa_log_ratelimit(PA_LOG_DEBUG))
3733 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3738 s->thread_info.volume_changes_tail = NULL;
3743 /* Called from the IO thread. */
3744 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3745 /* All the queued volume events later than current latency are shifted to happen earlier. */
3746 pa_sink_volume_change *c;
3747 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3748 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3749 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3751 pa_log_debug("latency = %lld", (long long) limit);
3752 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3754 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3755 pa_usec_t modified_limit = limit;
3756 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3757 modified_limit -= s->thread_info.volume_change_safety_margin;
3759 modified_limit += s->thread_info.volume_change_safety_margin;
3760 if (c->at > modified_limit) {
3762 if (c->at < modified_limit)
3763 c->at = modified_limit;
3765 prev_vol = pa_cvolume_avg(&c->hw_volume);
3767 pa_sink_volume_change_apply(s, NULL);
3770 /* Called from the main thread */
3771 /* Gets the list of formats supported by the sink. The members and idxset must
3772 * be freed by the caller. */
3773 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3778 if (s->get_formats) {
3779 /* Sink supports format query, all is good */
3780 ret = s->get_formats(s);
3782 /* Sink doesn't support format query, so assume it does PCM */
3783 pa_format_info *f = pa_format_info_new();
3784 f->encoding = PA_ENCODING_PCM;
3786 ret = pa_idxset_new(NULL, NULL);
3787 pa_idxset_put(ret, f, NULL);
3793 /* Called from the main thread */
3794 /* Allows an external source to set what formats a sink supports if the sink
3795 * permits this. The function makes a copy of the formats on success. */
3796 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3801 /* Sink supports setting formats -- let's give it a shot */
3802 return s->set_formats(s, formats);
3804 /* Sink doesn't support setting this -- bail out */
3808 /* Called from the main thread */
3809 /* Checks if the sink can accept this format */
3810 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3811 pa_idxset *formats = NULL;
3817 formats = pa_sink_get_formats(s);
3820 pa_format_info *finfo_device;
3823 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3824 if (pa_format_info_is_compatible(finfo_device, f)) {
3830 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3836 /* Called from the main thread */
3837 /* Calculates the intersection between formats supported by the sink and
3838 * in_formats, and returns these, in the order of the sink's formats. */
3839 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3840 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3841 pa_format_info *f_sink, *f_in;
3846 if (!in_formats || pa_idxset_isempty(in_formats))
3849 sink_formats = pa_sink_get_formats(s);
3851 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3852 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3853 if (pa_format_info_is_compatible(f_sink, f_in))
3854 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3860 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3865 /* Called from the main thread. */
3866 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3867 pa_cvolume old_volume;
3868 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3869 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3874 old_volume = s->reference_volume;
3876 if (pa_cvolume_equal(volume, &old_volume))
3879 s->reference_volume = *volume;
3880 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3881 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3882 s->flags & PA_SINK_DECIBEL_VOLUME),
3883 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3884 s->flags & PA_SINK_DECIBEL_VOLUME));
3886 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3887 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);