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 void pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1441 pa_sample_spec desired_spec;
1442 uint32_t default_rate = s->default_sample_rate;
1443 uint32_t alternate_rate = s->alternate_sample_rate;
1446 bool default_rate_is_usable = false;
1447 bool alternate_rate_is_usable = false;
1448 bool avoid_resampling = s->avoid_resampling;
1450 if (pa_sample_spec_equal(spec, &s->sample_spec))
1453 if (!s->reconfigure)
1456 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1457 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1461 if (PA_SINK_IS_RUNNING(s->state)) {
1462 pa_log_info("Cannot update sample spec, SINK_IS_RUNNING, will keep using %s and %u Hz",
1463 pa_sample_format_to_string(s->sample_spec.format), s->sample_spec.rate);
1467 if (s->monitor_source) {
1468 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1469 pa_log_info("Cannot update sample spec, monitor source is RUNNING");
1474 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1477 desired_spec = s->sample_spec;
1480 /* We have to try to use the sink input format and rate */
1481 desired_spec.format = spec->format;
1482 desired_spec.rate = spec->rate;
1484 } else if (avoid_resampling) {
1485 /* We just try to set the sink input's sample rate if it's not too low */
1486 if (spec->rate >= default_rate || spec->rate >= alternate_rate)
1487 desired_spec.rate = spec->rate;
1488 desired_spec.format = spec->format;
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;
1496 if (desired_spec.rate != spec->rate) {
1497 /* See if we can pick a rate that results in less resampling effort */
1498 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1499 default_rate_is_usable = true;
1500 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1501 default_rate_is_usable = true;
1502 if (alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1503 alternate_rate_is_usable = true;
1504 if (alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1505 alternate_rate_is_usable = true;
1507 if (alternate_rate_is_usable && !default_rate_is_usable)
1508 desired_spec.rate = alternate_rate;
1510 desired_spec.rate = default_rate;
1513 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1516 if (!passthrough && pa_sink_used_by(s) > 0)
1519 pa_log_debug("Suspending sink %s due to changing format, desired format = %s rate = %u",
1520 s->name, pa_sample_format_to_string(desired_spec.format), desired_spec.rate);
1521 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1523 s->reconfigure(s, &desired_spec, passthrough);
1525 /* update monitor source as well */
1526 if (s->monitor_source && !passthrough)
1527 pa_source_reconfigure(s->monitor_source, &s->sample_spec, false);
1528 pa_log_info("Reconfigured successfully");
1530 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1531 if (i->state == PA_SINK_INPUT_CORKED)
1532 pa_sink_input_update_resampler(i);
1535 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1538 /* Called from main thread */
1539 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1542 pa_sink_assert_ref(s);
1543 pa_assert_ctl_context();
1544 pa_assert(PA_SINK_IS_LINKED(s->state));
1546 /* The returned value is supposed to be in the time domain of the sound card! */
1548 if (s->state == PA_SINK_SUSPENDED)
1551 if (!(s->flags & PA_SINK_LATENCY))
1554 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1556 /* the return value is unsigned, so check that the offset can be added to usec without
1558 if (-s->port_latency_offset <= usec)
1559 usec += s->port_latency_offset;
1563 return (pa_usec_t)usec;
1566 /* Called from IO thread */
1567 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1571 pa_sink_assert_ref(s);
1572 pa_sink_assert_io_context(s);
1573 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1575 /* The returned value is supposed to be in the time domain of the sound card! */
1577 if (s->thread_info.state == PA_SINK_SUSPENDED)
1580 if (!(s->flags & PA_SINK_LATENCY))
1583 o = PA_MSGOBJECT(s);
1585 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1587 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1589 /* If allow_negative is false, the call should only return positive values, */
1590 usec += s->thread_info.port_latency_offset;
1591 if (!allow_negative && usec < 0)
1597 /* Called from the main thread (and also from the IO thread while the main
1598 * thread is waiting).
1600 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1601 * set. Instead, flat volume mode is detected by checking whether the root sink
1602 * has the flag set. */
1603 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1604 pa_sink_assert_ref(s);
1606 s = pa_sink_get_master(s);
1609 return (s->flags & PA_SINK_FLAT_VOLUME);
1614 /* Called from the main thread (and also from the IO thread while the main
1615 * thread is waiting). */
1616 pa_sink *pa_sink_get_master(pa_sink *s) {
1617 pa_sink_assert_ref(s);
1619 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1620 if (PA_UNLIKELY(!s->input_to_master))
1623 s = s->input_to_master->sink;
1629 /* Called from main context */
1630 bool pa_sink_is_filter(pa_sink *s) {
1631 pa_sink_assert_ref(s);
1633 return (s->input_to_master != NULL);
1636 /* Called from main context */
1637 bool pa_sink_is_passthrough(pa_sink *s) {
1638 pa_sink_input *alt_i;
1641 pa_sink_assert_ref(s);
1643 /* one and only one PASSTHROUGH input can possibly be connected */
1644 if (pa_idxset_size(s->inputs) == 1) {
1645 alt_i = pa_idxset_first(s->inputs, &idx);
1647 if (pa_sink_input_is_passthrough(alt_i))
1654 /* Called from main context */
1655 void pa_sink_enter_passthrough(pa_sink *s) {
1658 /* The sink implementation is reconfigured for passthrough in
1659 * pa_sink_reconfigure(). This function sets the PA core objects to
1660 * passthrough mode. */
1662 /* disable the monitor in passthrough mode */
1663 if (s->monitor_source) {
1664 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1665 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1668 /* set the volume to NORM */
1669 s->saved_volume = *pa_sink_get_volume(s, true);
1670 s->saved_save_volume = s->save_volume;
1672 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1673 pa_sink_set_volume(s, &volume, true, false);
1675 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1678 /* Called from main context */
1679 void pa_sink_leave_passthrough(pa_sink *s) {
1680 /* Unsuspend monitor */
1681 if (s->monitor_source) {
1682 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1683 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1686 /* Restore sink volume to what it was before we entered passthrough mode */
1687 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1689 pa_cvolume_init(&s->saved_volume);
1690 s->saved_save_volume = false;
1694 /* Called from main context. */
1695 static void compute_reference_ratio(pa_sink_input *i) {
1697 pa_cvolume remapped;
1701 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1704 * Calculates the reference ratio from the sink's reference
1705 * volume. This basically calculates:
1707 * i->reference_ratio = i->volume / i->sink->reference_volume
1710 remapped = i->sink->reference_volume;
1711 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1713 ratio = i->reference_ratio;
1715 for (c = 0; c < i->sample_spec.channels; c++) {
1717 /* We don't update when the sink volume is 0 anyway */
1718 if (remapped.values[c] <= PA_VOLUME_MUTED)
1721 /* Don't update the reference ratio unless necessary */
1722 if (pa_sw_volume_multiply(
1724 remapped.values[c]) == i->volume.values[c])
1727 ratio.values[c] = pa_sw_volume_divide(
1728 i->volume.values[c],
1729 remapped.values[c]);
1732 pa_sink_input_set_reference_ratio(i, &ratio);
1735 /* Called from main context. Only called for the root sink in volume sharing
1736 * cases, except for internal recursive calls. */
1737 static void compute_reference_ratios(pa_sink *s) {
1741 pa_sink_assert_ref(s);
1742 pa_assert_ctl_context();
1743 pa_assert(PA_SINK_IS_LINKED(s->state));
1744 pa_assert(pa_sink_flat_volume_enabled(s));
1746 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1747 compute_reference_ratio(i);
1749 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1750 && PA_SINK_IS_LINKED(i->origin_sink->state))
1751 compute_reference_ratios(i->origin_sink);
1755 /* Called from main context. Only called for the root sink in volume sharing
1756 * cases, except for internal recursive calls. */
1757 static void compute_real_ratios(pa_sink *s) {
1761 pa_sink_assert_ref(s);
1762 pa_assert_ctl_context();
1763 pa_assert(PA_SINK_IS_LINKED(s->state));
1764 pa_assert(pa_sink_flat_volume_enabled(s));
1766 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1768 pa_cvolume remapped;
1770 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1771 /* The origin sink uses volume sharing, so this input's real ratio
1772 * is handled as a special case - the real ratio must be 0 dB, and
1773 * as a result i->soft_volume must equal i->volume_factor. */
1774 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1775 i->soft_volume = i->volume_factor;
1777 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1778 compute_real_ratios(i->origin_sink);
1784 * This basically calculates:
1786 * i->real_ratio := i->volume / s->real_volume
1787 * i->soft_volume := i->real_ratio * i->volume_factor
1790 remapped = s->real_volume;
1791 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1793 i->real_ratio.channels = i->sample_spec.channels;
1794 i->soft_volume.channels = i->sample_spec.channels;
1796 for (c = 0; c < i->sample_spec.channels; c++) {
1798 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1799 /* We leave i->real_ratio untouched */
1800 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1804 /* Don't lose accuracy unless necessary */
1805 if (pa_sw_volume_multiply(
1806 i->real_ratio.values[c],
1807 remapped.values[c]) != i->volume.values[c])
1809 i->real_ratio.values[c] = pa_sw_volume_divide(
1810 i->volume.values[c],
1811 remapped.values[c]);
1813 i->soft_volume.values[c] = pa_sw_volume_multiply(
1814 i->real_ratio.values[c],
1815 i->volume_factor.values[c]);
1818 /* We don't copy the soft_volume to the thread_info data
1819 * here. That must be done by the caller */
1823 static pa_cvolume *cvolume_remap_minimal_impact(
1825 const pa_cvolume *template,
1826 const pa_channel_map *from,
1827 const pa_channel_map *to) {
1832 pa_assert(template);
1835 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1836 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1838 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1839 * mapping from sink input to sink volumes:
1841 * If template is a possible remapping from v it is used instead
1842 * of remapping anew.
1844 * If the channel maps don't match we set an all-channel volume on
1845 * the sink to ensure that changing a volume on one stream has no
1846 * effect that cannot be compensated for in another stream that
1847 * does not have the same channel map as the sink. */
1849 if (pa_channel_map_equal(from, to))
1853 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1858 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1862 /* Called from main thread. Only called for the root sink in volume sharing
1863 * cases, except for internal recursive calls. */
1864 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1868 pa_sink_assert_ref(s);
1869 pa_assert(max_volume);
1870 pa_assert(channel_map);
1871 pa_assert(pa_sink_flat_volume_enabled(s));
1873 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1874 pa_cvolume remapped;
1876 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1877 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1878 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1880 /* Ignore this input. The origin sink uses volume sharing, so this
1881 * input's volume will be set to be equal to the root sink's real
1882 * volume. Obviously this input's current volume must not then
1883 * affect what the root sink's real volume will be. */
1887 remapped = i->volume;
1888 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1889 pa_cvolume_merge(max_volume, max_volume, &remapped);
1893 /* Called from main thread. Only called for the root sink in volume sharing
1894 * cases, except for internal recursive calls. */
1895 static bool has_inputs(pa_sink *s) {
1899 pa_sink_assert_ref(s);
1901 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1902 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1909 /* Called from main thread. Only called for the root sink in volume sharing
1910 * cases, except for internal recursive calls. */
1911 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1915 pa_sink_assert_ref(s);
1916 pa_assert(new_volume);
1917 pa_assert(channel_map);
1919 s->real_volume = *new_volume;
1920 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1922 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1923 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1924 if (pa_sink_flat_volume_enabled(s)) {
1925 pa_cvolume new_input_volume;
1927 /* Follow the root sink's real volume. */
1928 new_input_volume = *new_volume;
1929 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1930 pa_sink_input_set_volume_direct(i, &new_input_volume);
1931 compute_reference_ratio(i);
1934 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1935 update_real_volume(i->origin_sink, new_volume, channel_map);
1940 /* Called from main thread. Only called for the root sink in shared volume
1942 static void compute_real_volume(pa_sink *s) {
1943 pa_sink_assert_ref(s);
1944 pa_assert_ctl_context();
1945 pa_assert(PA_SINK_IS_LINKED(s->state));
1946 pa_assert(pa_sink_flat_volume_enabled(s));
1947 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1949 /* This determines the maximum volume of all streams and sets
1950 * s->real_volume accordingly. */
1952 if (!has_inputs(s)) {
1953 /* In the special case that we have no sink inputs we leave the
1954 * volume unmodified. */
1955 update_real_volume(s, &s->reference_volume, &s->channel_map);
1959 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1961 /* First let's determine the new maximum volume of all inputs
1962 * connected to this sink */
1963 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1964 update_real_volume(s, &s->real_volume, &s->channel_map);
1966 /* Then, let's update the real ratios/soft volumes of all inputs
1967 * connected to this sink */
1968 compute_real_ratios(s);
1971 /* Called from main thread. Only called for the root sink in shared volume
1972 * cases, except for internal recursive calls. */
1973 static void propagate_reference_volume(pa_sink *s) {
1977 pa_sink_assert_ref(s);
1978 pa_assert_ctl_context();
1979 pa_assert(PA_SINK_IS_LINKED(s->state));
1980 pa_assert(pa_sink_flat_volume_enabled(s));
1982 /* This is called whenever the sink volume changes that is not
1983 * caused by a sink input volume change. We need to fix up the
1984 * sink input volumes accordingly */
1986 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1987 pa_cvolume new_volume;
1989 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1990 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1991 propagate_reference_volume(i->origin_sink);
1993 /* Since the origin sink uses volume sharing, this input's volume
1994 * needs to be updated to match the root sink's real volume, but
1995 * that will be done later in update_real_volume(). */
1999 /* This basically calculates:
2001 * i->volume := s->reference_volume * i->reference_ratio */
2003 new_volume = s->reference_volume;
2004 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2005 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2006 pa_sink_input_set_volume_direct(i, &new_volume);
2010 /* Called from main thread. Only called for the root sink in volume sharing
2011 * cases, except for internal recursive calls. The return value indicates
2012 * whether any reference volume actually changed. */
2013 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2015 bool reference_volume_changed;
2019 pa_sink_assert_ref(s);
2020 pa_assert(PA_SINK_IS_LINKED(s->state));
2022 pa_assert(channel_map);
2023 pa_assert(pa_cvolume_valid(v));
2026 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2028 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2029 pa_sink_set_reference_volume_direct(s, &volume);
2031 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2033 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2034 /* If the root sink's volume doesn't change, then there can't be any
2035 * changes in the other sinks in the sink tree either.
2037 * It's probably theoretically possible that even if the root sink's
2038 * volume changes slightly, some filter sink doesn't change its volume
2039 * due to rounding errors. If that happens, we still want to propagate
2040 * the changed root sink volume to the sinks connected to the
2041 * intermediate sink that didn't change its volume. This theoretical
2042 * possibility is the reason why we have that !(s->flags &
2043 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2044 * notice even if we returned here false always if
2045 * reference_volume_changed is false. */
2048 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2049 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2050 && PA_SINK_IS_LINKED(i->origin_sink->state))
2051 update_reference_volume(i->origin_sink, v, channel_map, false);
2057 /* Called from main thread */
2058 void pa_sink_set_volume(
2060 const pa_cvolume *volume,
2064 pa_cvolume new_reference_volume;
2067 pa_sink_assert_ref(s);
2068 pa_assert_ctl_context();
2069 pa_assert(PA_SINK_IS_LINKED(s->state));
2070 pa_assert(!volume || pa_cvolume_valid(volume));
2071 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2072 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2074 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2075 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2076 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2077 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2081 /* In case of volume sharing, the volume is set for the root sink first,
2082 * from which it's then propagated to the sharing sinks. */
2083 root_sink = pa_sink_get_master(s);
2085 if (PA_UNLIKELY(!root_sink))
2088 /* As a special exception we accept mono volumes on all sinks --
2089 * even on those with more complex channel maps */
2092 if (pa_cvolume_compatible(volume, &s->sample_spec))
2093 new_reference_volume = *volume;
2095 new_reference_volume = s->reference_volume;
2096 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2099 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2101 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2102 if (pa_sink_flat_volume_enabled(root_sink)) {
2103 /* OK, propagate this volume change back to the inputs */
2104 propagate_reference_volume(root_sink);
2106 /* And now recalculate the real volume */
2107 compute_real_volume(root_sink);
2109 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2113 /* If volume is NULL we synchronize the sink's real and
2114 * reference volumes with the stream volumes. */
2116 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2118 /* Ok, let's determine the new real volume */
2119 compute_real_volume(root_sink);
2121 /* Let's 'push' the reference volume if necessary */
2122 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2123 /* If the sink and its root don't have the same number of channels, we need to remap */
2124 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2125 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2126 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2128 /* Now that the reference volume is updated, we can update the streams'
2129 * reference ratios. */
2130 compute_reference_ratios(root_sink);
2133 if (root_sink->set_volume) {
2134 /* If we have a function set_volume(), then we do not apply a
2135 * soft volume by default. However, set_volume() is free to
2136 * apply one to root_sink->soft_volume */
2138 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2139 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2140 root_sink->set_volume(root_sink);
2143 /* If we have no function set_volume(), then the soft volume
2144 * becomes the real volume */
2145 root_sink->soft_volume = root_sink->real_volume;
2147 /* This tells the sink that soft volume and/or real volume changed */
2149 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2152 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2153 * Only to be called by sink implementor */
2154 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2156 pa_sink_assert_ref(s);
2157 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2159 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2160 pa_sink_assert_io_context(s);
2162 pa_assert_ctl_context();
2165 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2167 s->soft_volume = *volume;
2169 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2170 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2172 s->thread_info.soft_volume = s->soft_volume;
2175 /* Called from the main thread. Only called for the root sink in volume sharing
2176 * cases, except for internal recursive calls. */
2177 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2181 pa_sink_assert_ref(s);
2182 pa_assert(old_real_volume);
2183 pa_assert_ctl_context();
2184 pa_assert(PA_SINK_IS_LINKED(s->state));
2186 /* This is called when the hardware's real volume changes due to
2187 * some external event. We copy the real volume into our
2188 * reference volume and then rebuild the stream volumes based on
2189 * i->real_ratio which should stay fixed. */
2191 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2192 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2195 /* 1. Make the real volume the reference volume */
2196 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2199 if (pa_sink_flat_volume_enabled(s)) {
2201 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2202 pa_cvolume new_volume;
2204 /* 2. Since the sink's reference and real volumes are equal
2205 * now our ratios should be too. */
2206 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2208 /* 3. Recalculate the new stream reference volume based on the
2209 * reference ratio and the sink's reference volume.
2211 * This basically calculates:
2213 * i->volume = s->reference_volume * i->reference_ratio
2215 * This is identical to propagate_reference_volume() */
2216 new_volume = s->reference_volume;
2217 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2218 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2219 pa_sink_input_set_volume_direct(i, &new_volume);
2221 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2222 && PA_SINK_IS_LINKED(i->origin_sink->state))
2223 propagate_real_volume(i->origin_sink, old_real_volume);
2227 /* Something got changed in the hardware. It probably makes sense
2228 * to save changed hw settings given that hw volume changes not
2229 * triggered by PA are almost certainly done by the user. */
2230 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2231 s->save_volume = true;
2234 /* Called from io thread */
2235 void pa_sink_update_volume_and_mute(pa_sink *s) {
2237 pa_sink_assert_io_context(s);
2239 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2242 /* Called from main thread */
2243 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2244 pa_sink_assert_ref(s);
2245 pa_assert_ctl_context();
2246 pa_assert(PA_SINK_IS_LINKED(s->state));
2248 if (s->refresh_volume || force_refresh) {
2249 struct pa_cvolume old_real_volume;
2251 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2253 old_real_volume = s->real_volume;
2255 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2258 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2260 update_real_volume(s, &s->real_volume, &s->channel_map);
2261 propagate_real_volume(s, &old_real_volume);
2264 return &s->reference_volume;
2267 /* Called from main thread. In volume sharing cases, only the root sink may
2269 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2270 pa_cvolume old_real_volume;
2272 pa_sink_assert_ref(s);
2273 pa_assert_ctl_context();
2274 pa_assert(PA_SINK_IS_LINKED(s->state));
2275 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2277 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2279 old_real_volume = s->real_volume;
2280 update_real_volume(s, new_real_volume, &s->channel_map);
2281 propagate_real_volume(s, &old_real_volume);
2284 /* Called from main thread */
2285 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2288 pa_sink_assert_ref(s);
2289 pa_assert_ctl_context();
2291 old_muted = s->muted;
2293 if (mute == old_muted) {
2294 s->save_muted |= save;
2299 s->save_muted = save;
2301 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2302 s->set_mute_in_progress = true;
2304 s->set_mute_in_progress = false;
2307 if (!PA_SINK_IS_LINKED(s->state))
2310 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2311 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2312 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2313 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2316 /* Called from main thread */
2317 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2319 pa_sink_assert_ref(s);
2320 pa_assert_ctl_context();
2321 pa_assert(PA_SINK_IS_LINKED(s->state));
2323 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2326 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2327 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2328 pa_sink_mute_changed(s, mute);
2330 if (s->get_mute(s, &mute) >= 0)
2331 pa_sink_mute_changed(s, mute);
2338 /* Called from main thread */
2339 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2340 pa_sink_assert_ref(s);
2341 pa_assert_ctl_context();
2342 pa_assert(PA_SINK_IS_LINKED(s->state));
2344 if (s->set_mute_in_progress)
2347 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2348 * but we must have this here also, because the save parameter of
2349 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2350 * the mute state when it shouldn't be saved). */
2351 if (new_muted == s->muted)
2354 pa_sink_set_mute(s, new_muted, true);
2357 /* Called from main thread */
2358 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2359 pa_sink_assert_ref(s);
2360 pa_assert_ctl_context();
2363 pa_proplist_update(s->proplist, mode, p);
2365 if (PA_SINK_IS_LINKED(s->state)) {
2366 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2367 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2373 /* Called from main thread */
2374 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2375 void pa_sink_set_description(pa_sink *s, const char *description) {
2377 pa_sink_assert_ref(s);
2378 pa_assert_ctl_context();
2380 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2383 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2385 if (old && description && pa_streq(old, description))
2389 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2391 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2393 if (s->monitor_source) {
2396 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2397 pa_source_set_description(s->monitor_source, n);
2401 if (PA_SINK_IS_LINKED(s->state)) {
2402 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2403 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2407 /* Called from main thread */
2408 unsigned pa_sink_linked_by(pa_sink *s) {
2411 pa_sink_assert_ref(s);
2412 pa_assert_ctl_context();
2413 pa_assert(PA_SINK_IS_LINKED(s->state));
2415 ret = pa_idxset_size(s->inputs);
2417 /* We add in the number of streams connected to us here. Please
2418 * note the asymmetry to pa_sink_used_by()! */
2420 if (s->monitor_source)
2421 ret += pa_source_linked_by(s->monitor_source);
2426 /* Called from main thread */
2427 unsigned pa_sink_used_by(pa_sink *s) {
2430 pa_sink_assert_ref(s);
2431 pa_assert_ctl_context();
2432 pa_assert(PA_SINK_IS_LINKED(s->state));
2434 ret = pa_idxset_size(s->inputs);
2435 pa_assert(ret >= s->n_corked);
2437 /* Streams connected to our monitor source do not matter for
2438 * pa_sink_used_by()!.*/
2440 return ret - s->n_corked;
2443 /* Called from main thread */
2444 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2449 pa_sink_assert_ref(s);
2450 pa_assert_ctl_context();
2452 if (!PA_SINK_IS_LINKED(s->state))
2457 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2458 if (i == ignore_input)
2461 /* We do not assert here. It is perfectly valid for a sink input to
2462 * be in the INIT state (i.e. created, marked done but not yet put)
2463 * and we should not care if it's unlinked as it won't contribute
2464 * towards our busy status.
2466 if (!PA_SINK_INPUT_IS_LINKED(i->state))
2469 if (i->state == PA_SINK_INPUT_CORKED)
2472 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2478 if (s->monitor_source)
2479 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2484 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2486 case PA_SINK_INIT: return "INIT";
2487 case PA_SINK_IDLE: return "IDLE";
2488 case PA_SINK_RUNNING: return "RUNNING";
2489 case PA_SINK_SUSPENDED: return "SUSPENDED";
2490 case PA_SINK_UNLINKED: return "UNLINKED";
2491 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2494 pa_assert_not_reached();
2497 /* Called from the IO thread */
2498 static void sync_input_volumes_within_thread(pa_sink *s) {
2502 pa_sink_assert_ref(s);
2503 pa_sink_assert_io_context(s);
2505 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2506 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2509 i->thread_info.soft_volume = i->soft_volume;
2510 pa_sink_input_request_rewind(i, 0, true, false, false);
2514 /* Called from the IO thread. Only called for the root sink in volume sharing
2515 * cases, except for internal recursive calls. */
2516 static void set_shared_volume_within_thread(pa_sink *s) {
2517 pa_sink_input *i = NULL;
2520 pa_sink_assert_ref(s);
2522 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2524 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2525 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2526 set_shared_volume_within_thread(i->origin_sink);
2530 /* Called from IO thread, except when it is not */
2531 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2532 pa_sink *s = PA_SINK(o);
2533 pa_sink_assert_ref(s);
2535 switch ((pa_sink_message_t) code) {
2537 case PA_SINK_MESSAGE_ADD_INPUT: {
2538 pa_sink_input *i = PA_SINK_INPUT(userdata);
2540 /* If you change anything here, make sure to change the
2541 * sink input handling a few lines down at
2542 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2544 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2546 /* Since the caller sleeps in pa_sink_input_put(), we can
2547 * safely access data outside of thread_info even though
2550 if ((i->thread_info.sync_prev = i->sync_prev)) {
2551 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2552 pa_assert(i->sync_prev->sync_next == i);
2553 i->thread_info.sync_prev->thread_info.sync_next = i;
2556 if ((i->thread_info.sync_next = i->sync_next)) {
2557 pa_assert(i->sink == i->thread_info.sync_next->sink);
2558 pa_assert(i->sync_next->sync_prev == i);
2559 i->thread_info.sync_next->thread_info.sync_prev = i;
2562 pa_sink_input_attach(i);
2564 pa_sink_input_set_state_within_thread(i, i->state);
2566 /* The requested latency of the sink input needs to be fixed up and
2567 * then configured on the sink. If this causes the sink latency to
2568 * go down, the sink implementor is responsible for doing a rewind
2569 * in the update_requested_latency() callback to ensure that the
2570 * sink buffer doesn't contain more data than what the new latency
2573 * XXX: Does it really make sense to push this responsibility to
2574 * the sink implementors? Wouldn't it be better to do it once in
2575 * the core than many times in the modules? */
2577 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2578 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2580 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2581 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2583 /* We don't rewind here automatically. This is left to the
2584 * sink input implementor because some sink inputs need a
2585 * slow start, i.e. need some time to buffer client
2586 * samples before beginning streaming.
2588 * XXX: Does it really make sense to push this functionality to
2589 * the sink implementors? Wouldn't it be better to do it once in
2590 * the core than many times in the modules? */
2592 /* In flat volume mode we need to update the volume as
2594 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2597 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2598 pa_sink_input *i = PA_SINK_INPUT(userdata);
2600 /* If you change anything here, make sure to change the
2601 * sink input handling a few lines down at
2602 * PA_SINK_MESSAGE_START_MOVE, too. */
2604 pa_sink_input_detach(i);
2606 pa_sink_input_set_state_within_thread(i, i->state);
2608 /* Since the caller sleeps in pa_sink_input_unlink(),
2609 * we can safely access data outside of thread_info even
2610 * though it is mutable */
2612 pa_assert(!i->sync_prev);
2613 pa_assert(!i->sync_next);
2615 if (i->thread_info.sync_prev) {
2616 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2617 i->thread_info.sync_prev = NULL;
2620 if (i->thread_info.sync_next) {
2621 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2622 i->thread_info.sync_next = NULL;
2625 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2626 pa_sink_invalidate_requested_latency(s, true);
2627 pa_sink_request_rewind(s, (size_t) -1);
2629 /* In flat volume mode we need to update the volume as
2631 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2634 case PA_SINK_MESSAGE_START_MOVE: {
2635 pa_sink_input *i = PA_SINK_INPUT(userdata);
2637 /* We don't support moving synchronized streams. */
2638 pa_assert(!i->sync_prev);
2639 pa_assert(!i->sync_next);
2640 pa_assert(!i->thread_info.sync_next);
2641 pa_assert(!i->thread_info.sync_prev);
2643 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2645 size_t sink_nbytes, total_nbytes;
2647 /* The old sink probably has some audio from this
2648 * stream in its buffer. We want to "take it back" as
2649 * much as possible and play it to the new sink. We
2650 * don't know at this point how much the old sink can
2651 * rewind. We have to pick something, and that
2652 * something is the full latency of the old sink here.
2653 * So we rewind the stream buffer by the sink latency
2654 * amount, which may be more than what we should
2655 * rewind. This can result in a chunk of audio being
2656 * played both to the old sink and the new sink.
2658 * FIXME: Fix this code so that we don't have to make
2659 * guesses about how much the sink will actually be
2660 * able to rewind. If someone comes up with a solution
2661 * for this, something to note is that the part of the
2662 * latency that the old sink couldn't rewind should
2663 * ideally be compensated after the stream has moved
2664 * to the new sink by adding silence. The new sink
2665 * most likely can't start playing the moved stream
2666 * immediately, and that gap should be removed from
2667 * the "compensation silence" (at least at the time of
2668 * writing this, the move finish code will actually
2669 * already take care of dropping the new sink's
2670 * unrewindable latency, so taking into account the
2671 * unrewindable latency of the old sink is the only
2674 * The render_memblockq contents are discarded,
2675 * because when the sink changes, the format of the
2676 * audio stored in the render_memblockq may change
2677 * too, making the stored audio invalid. FIXME:
2678 * However, the read and write indices are moved back
2679 * the same amount, so if they are not the same now,
2680 * they won't be the same after the rewind either. If
2681 * the write index of the render_memblockq is ahead of
2682 * the read index, then the render_memblockq will feed
2683 * the new sink some silence first, which it shouldn't
2684 * do. The write index should be flushed to be the
2685 * same as the read index. */
2687 /* Get the latency of the sink */
2688 usec = pa_sink_get_latency_within_thread(s, false);
2689 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2690 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2692 if (total_nbytes > 0) {
2693 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2694 i->thread_info.rewrite_flush = true;
2695 pa_sink_input_process_rewind(i, sink_nbytes);
2699 pa_sink_input_detach(i);
2701 /* Let's remove the sink input ...*/
2702 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2704 pa_sink_invalidate_requested_latency(s, true);
2706 pa_log_debug("Requesting rewind due to started move");
2707 pa_sink_request_rewind(s, (size_t) -1);
2709 /* In flat volume mode we need to update the volume as
2711 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2714 case PA_SINK_MESSAGE_FINISH_MOVE: {
2715 pa_sink_input *i = PA_SINK_INPUT(userdata);
2717 /* We don't support moving synchronized streams. */
2718 pa_assert(!i->sync_prev);
2719 pa_assert(!i->sync_next);
2720 pa_assert(!i->thread_info.sync_next);
2721 pa_assert(!i->thread_info.sync_prev);
2723 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2725 pa_sink_input_attach(i);
2727 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2731 /* In the ideal case the new sink would start playing
2732 * the stream immediately. That requires the sink to
2733 * be able to rewind all of its latency, which usually
2734 * isn't possible, so there will probably be some gap
2735 * before the moved stream becomes audible. We then
2736 * have two possibilities: 1) start playing the stream
2737 * from where it is now, or 2) drop the unrewindable
2738 * latency of the sink from the stream. With option 1
2739 * we won't lose any audio but the stream will have a
2740 * pause. With option 2 we may lose some audio but the
2741 * stream time will be somewhat in sync with the wall
2742 * clock. Lennart seems to have chosen option 2 (one
2743 * of the reasons might have been that option 1 is
2744 * actually much harder to implement), so we drop the
2745 * latency of the new sink from the moved stream and
2746 * hope that the sink will undo most of that in the
2749 /* Get the latency of the sink */
2750 usec = pa_sink_get_latency_within_thread(s, false);
2751 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2754 pa_sink_input_drop(i, nbytes);
2756 pa_log_debug("Requesting rewind due to finished move");
2757 pa_sink_request_rewind(s, nbytes);
2760 /* Updating the requested sink latency has to be done
2761 * after the sink rewind request, not before, because
2762 * otherwise the sink may limit the rewind amount
2765 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2766 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2768 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2769 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2771 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2774 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2775 pa_sink *root_sink = pa_sink_get_master(s);
2777 if (PA_LIKELY(root_sink))
2778 set_shared_volume_within_thread(root_sink);
2783 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2785 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2787 pa_sink_volume_change_push(s);
2789 /* Fall through ... */
2791 case PA_SINK_MESSAGE_SET_VOLUME:
2793 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2794 s->thread_info.soft_volume = s->soft_volume;
2795 pa_sink_request_rewind(s, (size_t) -1);
2798 /* Fall through ... */
2800 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2801 sync_input_volumes_within_thread(s);
2804 case PA_SINK_MESSAGE_GET_VOLUME:
2806 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2808 pa_sink_volume_change_flush(s);
2809 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2812 /* In case sink implementor reset SW volume. */
2813 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2814 s->thread_info.soft_volume = s->soft_volume;
2815 pa_sink_request_rewind(s, (size_t) -1);
2820 case PA_SINK_MESSAGE_SET_MUTE:
2822 if (s->thread_info.soft_muted != s->muted) {
2823 s->thread_info.soft_muted = s->muted;
2824 pa_sink_request_rewind(s, (size_t) -1);
2827 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2832 case PA_SINK_MESSAGE_GET_MUTE:
2834 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2835 return s->get_mute(s, userdata);
2839 case PA_SINK_MESSAGE_SET_STATE: {
2840 struct set_state_data *data = userdata;
2841 bool suspend_change =
2842 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(data->state)) ||
2843 (PA_SINK_IS_OPENED(s->thread_info.state) && data->state == PA_SINK_SUSPENDED);
2845 if (s->set_state_in_io_thread) {
2848 if ((r = s->set_state_in_io_thread(s, data->state, data->suspend_cause)) < 0)
2852 s->thread_info.state = data->state;
2854 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2855 s->thread_info.rewind_nbytes = 0;
2856 s->thread_info.rewind_requested = false;
2859 if (suspend_change) {
2863 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2864 if (i->suspend_within_thread)
2865 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2871 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2873 pa_usec_t *usec = userdata;
2874 *usec = pa_sink_get_requested_latency_within_thread(s);
2876 /* Yes, that's right, the IO thread will see -1 when no
2877 * explicit requested latency is configured, the main
2878 * thread will see max_latency */
2879 if (*usec == (pa_usec_t) -1)
2880 *usec = s->thread_info.max_latency;
2885 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2886 pa_usec_t *r = userdata;
2888 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2893 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2894 pa_usec_t *r = userdata;
2896 r[0] = s->thread_info.min_latency;
2897 r[1] = s->thread_info.max_latency;
2902 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2904 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2907 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2909 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2912 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2914 *((size_t*) userdata) = s->thread_info.max_rewind;
2917 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2919 *((size_t*) userdata) = s->thread_info.max_request;
2922 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2924 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2927 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2929 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2932 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2933 /* This message is sent from IO-thread and handled in main thread. */
2934 pa_assert_ctl_context();
2936 /* Make sure we're not messing with main thread when no longer linked */
2937 if (!PA_SINK_IS_LINKED(s->state))
2940 pa_sink_get_volume(s, true);
2941 pa_sink_get_mute(s, true);
2944 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2945 s->thread_info.port_latency_offset = offset;
2948 case PA_SINK_MESSAGE_GET_LATENCY:
2949 case PA_SINK_MESSAGE_MAX:
2956 /* Called from main thread */
2957 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2962 pa_core_assert_ref(c);
2963 pa_assert_ctl_context();
2964 pa_assert(cause != 0);
2966 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2969 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2976 /* Called from IO thread */
2977 void pa_sink_detach_within_thread(pa_sink *s) {
2981 pa_sink_assert_ref(s);
2982 pa_sink_assert_io_context(s);
2983 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2985 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2986 pa_sink_input_detach(i);
2988 if (s->monitor_source)
2989 pa_source_detach_within_thread(s->monitor_source);
2992 /* Called from IO thread */
2993 void pa_sink_attach_within_thread(pa_sink *s) {
2997 pa_sink_assert_ref(s);
2998 pa_sink_assert_io_context(s);
2999 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3001 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3002 pa_sink_input_attach(i);
3004 if (s->monitor_source)
3005 pa_source_attach_within_thread(s->monitor_source);
3008 /* Called from IO thread */
3009 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3010 pa_sink_assert_ref(s);
3011 pa_sink_assert_io_context(s);
3012 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3014 if (nbytes == (size_t) -1)
3015 nbytes = s->thread_info.max_rewind;
3017 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3019 if (s->thread_info.rewind_requested &&
3020 nbytes <= s->thread_info.rewind_nbytes)
3023 s->thread_info.rewind_nbytes = nbytes;
3024 s->thread_info.rewind_requested = true;
3026 if (s->request_rewind)
3027 s->request_rewind(s);
3030 /* Called from IO thread */
3031 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3032 pa_usec_t result = (pa_usec_t) -1;
3035 pa_usec_t monitor_latency;
3037 pa_sink_assert_ref(s);
3038 pa_sink_assert_io_context(s);
3040 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3041 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3043 if (s->thread_info.requested_latency_valid)
3044 return s->thread_info.requested_latency;
3046 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3047 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3048 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3049 result = i->thread_info.requested_sink_latency;
3051 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3053 if (monitor_latency != (pa_usec_t) -1 &&
3054 (result == (pa_usec_t) -1 || result > monitor_latency))
3055 result = monitor_latency;
3057 if (result != (pa_usec_t) -1)
3058 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3060 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3061 /* Only cache if properly initialized */
3062 s->thread_info.requested_latency = result;
3063 s->thread_info.requested_latency_valid = true;
3069 /* Called from main thread */
3070 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3073 pa_sink_assert_ref(s);
3074 pa_assert_ctl_context();
3075 pa_assert(PA_SINK_IS_LINKED(s->state));
3077 if (s->state == PA_SINK_SUSPENDED)
3080 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3085 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3086 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3090 pa_sink_assert_ref(s);
3091 pa_sink_assert_io_context(s);
3093 if (max_rewind == s->thread_info.max_rewind)
3096 s->thread_info.max_rewind = max_rewind;
3098 if (PA_SINK_IS_LINKED(s->thread_info.state))
3099 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3100 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3102 if (s->monitor_source)
3103 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3106 /* Called from main thread */
3107 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3108 pa_sink_assert_ref(s);
3109 pa_assert_ctl_context();
3111 if (PA_SINK_IS_LINKED(s->state))
3112 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3114 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3117 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3118 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3121 pa_sink_assert_ref(s);
3122 pa_sink_assert_io_context(s);
3124 if (max_request == s->thread_info.max_request)
3127 s->thread_info.max_request = max_request;
3129 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3132 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3133 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3137 /* Called from main thread */
3138 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3139 pa_sink_assert_ref(s);
3140 pa_assert_ctl_context();
3142 if (PA_SINK_IS_LINKED(s->state))
3143 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3145 pa_sink_set_max_request_within_thread(s, max_request);
3148 /* Called from IO thread */
3149 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3153 pa_sink_assert_ref(s);
3154 pa_sink_assert_io_context(s);
3156 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3157 s->thread_info.requested_latency_valid = false;
3161 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3163 if (s->update_requested_latency)
3164 s->update_requested_latency(s);
3166 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3167 if (i->update_sink_requested_latency)
3168 i->update_sink_requested_latency(i);
3172 /* Called from main thread */
3173 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3174 pa_sink_assert_ref(s);
3175 pa_assert_ctl_context();
3177 /* min_latency == 0: no limit
3178 * min_latency anything else: specified limit
3180 * Similar for max_latency */
3182 if (min_latency < ABSOLUTE_MIN_LATENCY)
3183 min_latency = ABSOLUTE_MIN_LATENCY;
3185 if (max_latency <= 0 ||
3186 max_latency > ABSOLUTE_MAX_LATENCY)
3187 max_latency = ABSOLUTE_MAX_LATENCY;
3189 pa_assert(min_latency <= max_latency);
3191 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3192 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3193 max_latency == ABSOLUTE_MAX_LATENCY) ||
3194 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3196 if (PA_SINK_IS_LINKED(s->state)) {
3202 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3204 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3207 /* Called from main thread */
3208 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3209 pa_sink_assert_ref(s);
3210 pa_assert_ctl_context();
3211 pa_assert(min_latency);
3212 pa_assert(max_latency);
3214 if (PA_SINK_IS_LINKED(s->state)) {
3215 pa_usec_t r[2] = { 0, 0 };
3217 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3219 *min_latency = r[0];
3220 *max_latency = r[1];
3222 *min_latency = s->thread_info.min_latency;
3223 *max_latency = s->thread_info.max_latency;
3227 /* Called from IO thread */
3228 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3229 pa_sink_assert_ref(s);
3230 pa_sink_assert_io_context(s);
3232 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3233 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3234 pa_assert(min_latency <= max_latency);
3236 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3237 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3238 max_latency == ABSOLUTE_MAX_LATENCY) ||
3239 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3241 if (s->thread_info.min_latency == min_latency &&
3242 s->thread_info.max_latency == max_latency)
3245 s->thread_info.min_latency = min_latency;
3246 s->thread_info.max_latency = max_latency;
3248 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3252 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3253 if (i->update_sink_latency_range)
3254 i->update_sink_latency_range(i);
3257 pa_sink_invalidate_requested_latency(s, false);
3259 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3262 /* Called from main thread */
3263 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3264 pa_sink_assert_ref(s);
3265 pa_assert_ctl_context();
3267 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3268 pa_assert(latency == 0);
3272 if (latency < ABSOLUTE_MIN_LATENCY)
3273 latency = ABSOLUTE_MIN_LATENCY;
3275 if (latency > ABSOLUTE_MAX_LATENCY)
3276 latency = ABSOLUTE_MAX_LATENCY;
3278 if (PA_SINK_IS_LINKED(s->state))
3279 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3281 s->thread_info.fixed_latency = latency;
3283 pa_source_set_fixed_latency(s->monitor_source, latency);
3286 /* Called from main thread */
3287 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3290 pa_sink_assert_ref(s);
3291 pa_assert_ctl_context();
3293 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3296 if (PA_SINK_IS_LINKED(s->state))
3297 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3299 latency = s->thread_info.fixed_latency;
3304 /* Called from IO thread */
3305 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3306 pa_sink_assert_ref(s);
3307 pa_sink_assert_io_context(s);
3309 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3310 pa_assert(latency == 0);
3311 s->thread_info.fixed_latency = 0;
3313 if (s->monitor_source)
3314 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3319 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3320 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3322 if (s->thread_info.fixed_latency == latency)
3325 s->thread_info.fixed_latency = latency;
3327 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3331 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3332 if (i->update_sink_fixed_latency)
3333 i->update_sink_fixed_latency(i);
3336 pa_sink_invalidate_requested_latency(s, false);
3338 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3341 /* Called from main context */
3342 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3343 pa_sink_assert_ref(s);
3345 s->port_latency_offset = offset;
3347 if (PA_SINK_IS_LINKED(s->state))
3348 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3350 s->thread_info.port_latency_offset = offset;
3352 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3355 /* Called from main context */
3356 size_t pa_sink_get_max_rewind(pa_sink *s) {
3358 pa_assert_ctl_context();
3359 pa_sink_assert_ref(s);
3361 if (!PA_SINK_IS_LINKED(s->state))
3362 return s->thread_info.max_rewind;
3364 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3369 /* Called from main context */
3370 size_t pa_sink_get_max_request(pa_sink *s) {
3372 pa_sink_assert_ref(s);
3373 pa_assert_ctl_context();
3375 if (!PA_SINK_IS_LINKED(s->state))
3376 return s->thread_info.max_request;
3378 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3383 /* Called from main context */
3384 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3385 pa_device_port *port;
3387 pa_sink_assert_ref(s);
3388 pa_assert_ctl_context();
3391 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3392 return -PA_ERR_NOTIMPLEMENTED;
3396 return -PA_ERR_NOENTITY;
3398 if (!(port = pa_hashmap_get(s->ports, name)))
3399 return -PA_ERR_NOENTITY;
3401 if (s->active_port == port) {
3402 s->save_port = s->save_port || save;
3406 if (s->set_port(s, port) < 0)
3407 return -PA_ERR_NOENTITY;
3409 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3411 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3413 s->active_port = port;
3414 s->save_port = save;
3416 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3418 /* The active port affects the default sink selection. */
3419 pa_core_update_default_sink(s->core);
3421 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3426 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3427 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3431 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3434 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3436 if (pa_streq(ff, "microphone"))
3437 t = "audio-input-microphone";
3438 else if (pa_streq(ff, "webcam"))
3440 else if (pa_streq(ff, "computer"))
3442 else if (pa_streq(ff, "handset"))
3444 else if (pa_streq(ff, "portable"))
3445 t = "multimedia-player";
3446 else if (pa_streq(ff, "tv"))
3447 t = "video-display";
3450 * The following icons are not part of the icon naming spec,
3451 * because Rodney Dawes sucks as the maintainer of that spec.
3453 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3455 else if (pa_streq(ff, "headset"))
3456 t = "audio-headset";
3457 else if (pa_streq(ff, "headphone"))
3458 t = "audio-headphones";
3459 else if (pa_streq(ff, "speaker"))
3460 t = "audio-speakers";
3461 else if (pa_streq(ff, "hands-free"))
3462 t = "audio-handsfree";
3466 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3467 if (pa_streq(c, "modem"))
3474 t = "audio-input-microphone";
3477 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3478 if (strstr(profile, "analog"))
3480 else if (strstr(profile, "iec958"))
3482 else if (strstr(profile, "hdmi"))
3486 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3488 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3493 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3494 const char *s, *d = NULL, *k;
3497 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3501 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3505 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3506 if (pa_streq(s, "internal"))
3507 d = _("Built-in Audio");
3510 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3511 if (pa_streq(s, "modem"))
3515 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3520 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3523 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3525 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3530 bool pa_device_init_intended_roles(pa_proplist *p) {
3534 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3537 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3538 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3539 || pa_streq(s, "headset")) {
3540 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3547 unsigned pa_device_init_priority(pa_proplist *p) {
3549 unsigned priority = 0;
3553 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3555 if (pa_streq(s, "sound"))
3557 else if (!pa_streq(s, "modem"))
3561 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3563 if (pa_streq(s, "headphone"))
3565 else if (pa_streq(s, "hifi"))
3567 else if (pa_streq(s, "speaker"))
3569 else if (pa_streq(s, "portable"))
3573 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3575 if (pa_streq(s, "bluetooth"))
3577 else if (pa_streq(s, "usb"))
3579 else if (pa_streq(s, "pci"))
3583 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3585 if (pa_startswith(s, "analog-"))
3587 else if (pa_startswith(s, "iec958-"))
3594 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3596 /* Called from the IO thread. */
3597 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3598 pa_sink_volume_change *c;
3599 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3600 c = pa_xnew(pa_sink_volume_change, 1);
3602 PA_LLIST_INIT(pa_sink_volume_change, c);
3604 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3608 /* Called from the IO thread. */
3609 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3611 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3615 /* Called from the IO thread. */
3616 void pa_sink_volume_change_push(pa_sink *s) {
3617 pa_sink_volume_change *c = NULL;
3618 pa_sink_volume_change *nc = NULL;
3619 pa_sink_volume_change *pc = NULL;
3620 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3622 const char *direction = NULL;
3625 nc = pa_sink_volume_change_new(s);
3627 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3628 * Adding one more volume for HW would get us rid of this, but I am trying
3629 * to survive with the ones we already have. */
3630 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3632 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3633 pa_log_debug("Volume not changing");
3634 pa_sink_volume_change_free(nc);
3638 nc->at = pa_sink_get_latency_within_thread(s, false);
3639 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3641 if (s->thread_info.volume_changes_tail) {
3642 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3643 /* If volume is going up let's do it a bit late. If it is going
3644 * down let's do it a bit early. */
3645 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3646 if (nc->at + safety_margin > c->at) {
3647 nc->at += safety_margin;
3652 else if (nc->at - safety_margin > c->at) {
3653 nc->at -= safety_margin;
3661 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3662 nc->at += safety_margin;
3665 nc->at -= safety_margin;
3668 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3671 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3674 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3676 /* We can ignore volume events that came earlier but should happen later than this. */
3677 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3678 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3679 pa_sink_volume_change_free(c);
3682 s->thread_info.volume_changes_tail = nc;
3685 /* Called from the IO thread. */
3686 static void pa_sink_volume_change_flush(pa_sink *s) {
3687 pa_sink_volume_change *c = s->thread_info.volume_changes;
3689 s->thread_info.volume_changes = NULL;
3690 s->thread_info.volume_changes_tail = NULL;
3692 pa_sink_volume_change *next = c->next;
3693 pa_sink_volume_change_free(c);
3698 /* Called from the IO thread. */
3699 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3705 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3711 pa_assert(s->write_volume);
3713 now = pa_rtclock_now();
3715 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3716 pa_sink_volume_change *c = s->thread_info.volume_changes;
3717 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3718 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3719 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3721 s->thread_info.current_hw_volume = c->hw_volume;
3722 pa_sink_volume_change_free(c);
3728 if (s->thread_info.volume_changes) {
3730 *usec_to_next = s->thread_info.volume_changes->at - now;
3731 if (pa_log_ratelimit(PA_LOG_DEBUG))
3732 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3737 s->thread_info.volume_changes_tail = NULL;
3742 /* Called from the IO thread. */
3743 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3744 /* All the queued volume events later than current latency are shifted to happen earlier. */
3745 pa_sink_volume_change *c;
3746 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3747 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3748 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3750 pa_log_debug("latency = %lld", (long long) limit);
3751 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3753 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3754 pa_usec_t modified_limit = limit;
3755 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3756 modified_limit -= s->thread_info.volume_change_safety_margin;
3758 modified_limit += s->thread_info.volume_change_safety_margin;
3759 if (c->at > modified_limit) {
3761 if (c->at < modified_limit)
3762 c->at = modified_limit;
3764 prev_vol = pa_cvolume_avg(&c->hw_volume);
3766 pa_sink_volume_change_apply(s, NULL);
3769 /* Called from the main thread */
3770 /* Gets the list of formats supported by the sink. The members and idxset must
3771 * be freed by the caller. */
3772 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3777 if (s->get_formats) {
3778 /* Sink supports format query, all is good */
3779 ret = s->get_formats(s);
3781 /* Sink doesn't support format query, so assume it does PCM */
3782 pa_format_info *f = pa_format_info_new();
3783 f->encoding = PA_ENCODING_PCM;
3785 ret = pa_idxset_new(NULL, NULL);
3786 pa_idxset_put(ret, f, NULL);
3792 /* Called from the main thread */
3793 /* Allows an external source to set what formats a sink supports if the sink
3794 * permits this. The function makes a copy of the formats on success. */
3795 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3800 /* Sink supports setting formats -- let's give it a shot */
3801 return s->set_formats(s, formats);
3803 /* Sink doesn't support setting this -- bail out */
3807 /* Called from the main thread */
3808 /* Checks if the sink can accept this format */
3809 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3810 pa_idxset *formats = NULL;
3816 formats = pa_sink_get_formats(s);
3819 pa_format_info *finfo_device;
3822 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3823 if (pa_format_info_is_compatible(finfo_device, f)) {
3829 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3835 /* Called from the main thread */
3836 /* Calculates the intersection between formats supported by the sink and
3837 * in_formats, and returns these, in the order of the sink's formats. */
3838 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3839 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3840 pa_format_info *f_sink, *f_in;
3845 if (!in_formats || pa_idxset_isempty(in_formats))
3848 sink_formats = pa_sink_get_formats(s);
3850 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3851 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3852 if (pa_format_info_is_compatible(f_sink, f_in))
3853 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3859 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3864 /* Called from the main thread */
3865 void pa_sink_set_sample_format(pa_sink *s, pa_sample_format_t format) {
3866 pa_sample_format_t old_format;
3869 pa_assert(pa_sample_format_valid(format));
3871 old_format = s->sample_spec.format;
3872 if (old_format == format)
3875 pa_log_info("%s: format: %s -> %s",
3876 s->name, pa_sample_format_to_string(old_format), pa_sample_format_to_string(format));
3878 s->sample_spec.format = format;
3880 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3883 /* Called from the main thread */
3884 void pa_sink_set_sample_rate(pa_sink *s, uint32_t rate) {
3888 pa_assert(pa_sample_rate_valid(rate));
3890 old_rate = s->sample_spec.rate;
3891 if (old_rate == rate)
3894 pa_log_info("%s: rate: %u -> %u", s->name, old_rate, rate);
3896 s->sample_spec.rate = rate;
3898 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3901 /* Called from the main thread. */
3902 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3903 pa_cvolume old_volume;
3904 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3905 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3910 old_volume = s->reference_volume;
3912 if (pa_cvolume_equal(volume, &old_volume))
3915 s->reference_volume = *volume;
3916 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3917 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3918 s->flags & PA_SINK_DECIBEL_VOLUME),
3919 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3920 s->flags & PA_SINK_DECIBEL_VOLUME));
3922 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3923 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);