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;
403 pa_sink_state_t old_state;
404 pa_suspend_cause_t old_suspend_cause;
407 pa_assert_ctl_context();
409 state_changed = state != s->state;
410 suspend_cause_changed = suspend_cause != s->suspend_cause;
412 if (!state_changed && !suspend_cause_changed)
415 suspending = PA_SINK_IS_OPENED(s->state) && state == PA_SINK_SUSPENDED;
416 resuming = s->state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state);
418 /* If we are resuming, suspend_cause must be 0. */
419 pa_assert(!resuming || !suspend_cause);
421 /* Here's something to think about: what to do with the suspend cause if
422 * resuming the sink fails? The old suspend cause will be incorrect, so we
423 * can't use that. On the other hand, if we set no suspend cause (as is the
424 * case currently), then it looks strange to have a sink suspended without
425 * any cause. It might be a good idea to add a new "resume failed" suspend
426 * cause, or it might just add unnecessary complexity, given that the
427 * current approach of not setting any suspend cause works well enough. */
429 if (s->set_state_in_main_thread) {
430 if ((ret = s->set_state_in_main_thread(s, state, suspend_cause)) < 0) {
431 /* set_state_in_main_thread() is allowed to fail only when resuming. */
434 /* If resuming fails, we set the state to SUSPENDED and
435 * suspend_cause to 0. */
436 state = PA_SINK_SUSPENDED;
438 state_changed = false;
439 suspend_cause_changed = suspend_cause != s->suspend_cause;
442 /* We know the state isn't changing. If the suspend cause isn't
443 * changing either, then there's nothing more to do. */
444 if (!suspend_cause_changed)
450 struct set_state_data data = { .state = state, .suspend_cause = suspend_cause };
452 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, &data, 0, NULL)) < 0) {
453 /* SET_STATE is allowed to fail only when resuming. */
456 if (s->set_state_in_main_thread)
457 s->set_state_in_main_thread(s, PA_SINK_SUSPENDED, 0);
459 /* If resuming fails, we set the state to SUSPENDED and
460 * suspend_cause to 0. */
461 state = PA_SINK_SUSPENDED;
463 state_changed = false;
464 suspend_cause_changed = suspend_cause != s->suspend_cause;
467 /* We know the state isn't changing. If the suspend cause isn't
468 * changing either, then there's nothing more to do. */
469 if (!suspend_cause_changed)
474 old_suspend_cause = s->suspend_cause;
475 if (suspend_cause_changed) {
476 char old_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
477 char new_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
479 pa_log_debug("%s: suspend_cause: %s -> %s", s->name, pa_suspend_cause_to_string(s->suspend_cause, old_cause_buf),
480 pa_suspend_cause_to_string(suspend_cause, new_cause_buf));
481 s->suspend_cause = suspend_cause;
484 old_state = s->state;
486 pa_log_debug("%s: state: %s -> %s", s->name, pa_sink_state_to_string(s->state), pa_sink_state_to_string(state));
489 /* If we enter UNLINKED state, then we don't send change notifications.
490 * pa_sink_unlink() will send unlink notifications instead. */
491 if (state != PA_SINK_UNLINKED) {
492 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
493 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
497 if (suspending || resuming || suspend_cause_changed) {
501 /* We're suspending or resuming, tell everyone about it */
503 PA_IDXSET_FOREACH(i, s->inputs, idx)
504 if (s->state == PA_SINK_SUSPENDED &&
505 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
506 pa_sink_input_kill(i);
508 i->suspend(i, old_state, old_suspend_cause);
511 if ((suspending || resuming || suspend_cause_changed) && s->monitor_source && state != PA_SINK_UNLINKED)
512 pa_source_sync_suspend(s->monitor_source);
517 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
523 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
524 pa_sink_flags_t flags;
527 pa_assert(!s->write_volume || cb);
531 /* Save the current flags so we can tell if they've changed */
535 /* The sink implementor is responsible for setting decibel volume support */
536 s->flags |= PA_SINK_HW_VOLUME_CTRL;
538 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
539 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
540 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
543 /* If the flags have changed after init, let any clients know via a change event */
544 if (s->state != PA_SINK_INIT && flags != s->flags)
545 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
548 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
549 pa_sink_flags_t flags;
552 pa_assert(!cb || s->set_volume);
554 s->write_volume = cb;
556 /* Save the current flags so we can tell if they've changed */
560 s->flags |= PA_SINK_DEFERRED_VOLUME;
562 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
564 /* If the flags have changed after init, let any clients know via a change event */
565 if (s->state != PA_SINK_INIT && flags != s->flags)
566 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
569 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
575 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
576 pa_sink_flags_t flags;
582 /* Save the current flags so we can tell if they've changed */
586 s->flags |= PA_SINK_HW_MUTE_CTRL;
588 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
590 /* If the flags have changed after init, let any clients know via a change event */
591 if (s->state != PA_SINK_INIT && flags != s->flags)
592 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
595 static void enable_flat_volume(pa_sink *s, bool enable) {
596 pa_sink_flags_t flags;
600 /* Always follow the overall user preference here */
601 enable = enable && s->core->flat_volumes;
603 /* Save the current flags so we can tell if they've changed */
607 s->flags |= PA_SINK_FLAT_VOLUME;
609 s->flags &= ~PA_SINK_FLAT_VOLUME;
611 /* If the flags have changed after init, let any clients know via a change event */
612 if (s->state != PA_SINK_INIT && flags != s->flags)
613 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
616 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
617 pa_sink_flags_t flags;
621 /* Save the current flags so we can tell if they've changed */
625 s->flags |= PA_SINK_DECIBEL_VOLUME;
626 enable_flat_volume(s, true);
628 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
629 enable_flat_volume(s, false);
632 /* If the flags have changed after init, let any clients know via a change event */
633 if (s->state != PA_SINK_INIT && flags != s->flags)
634 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
637 /* Called from main context */
638 void pa_sink_put(pa_sink* s) {
639 pa_sink_assert_ref(s);
640 pa_assert_ctl_context();
642 pa_assert(s->state == PA_SINK_INIT);
643 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
645 /* The following fields must be initialized properly when calling _put() */
646 pa_assert(s->asyncmsgq);
647 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
649 /* Generally, flags should be initialized via pa_sink_new(). As a
650 * special exception we allow some volume related flags to be set
651 * between _new() and _put() by the callback setter functions above.
653 * Thus we implement a couple safeguards here which ensure the above
654 * setters were used (or at least the implementor made manual changes
655 * in a compatible way).
657 * Note: All of these flags set here can change over the life time
659 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
660 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
661 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
663 /* XXX: Currently decibel volume is disabled for all sinks that use volume
664 * sharing. When the master sink supports decibel volume, it would be good
665 * to have the flag also in the filter sink, but currently we don't do that
666 * so that the flags of the filter sink never change when it's moved from
667 * a master sink to another. One solution for this problem would be to
668 * remove user-visible volume altogether from filter sinks when volume
669 * sharing is used, but the current approach was easier to implement... */
670 /* We always support decibel volumes in software, otherwise we leave it to
671 * the sink implementor to set this flag as needed.
673 * Note: This flag can also change over the life time of the sink. */
674 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
675 pa_sink_enable_decibel_volume(s, true);
676 s->soft_volume = s->reference_volume;
679 /* If the sink implementor support DB volumes by itself, we should always
680 * try and enable flat volumes too */
681 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
682 enable_flat_volume(s, true);
684 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
685 pa_sink *root_sink = pa_sink_get_master(s);
687 pa_assert(root_sink);
689 s->reference_volume = root_sink->reference_volume;
690 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
692 s->real_volume = root_sink->real_volume;
693 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
695 /* We assume that if the sink implementor changed the default
696 * volume he did so in real_volume, because that is the usual
697 * place where he is supposed to place his changes. */
698 s->reference_volume = s->real_volume;
700 s->thread_info.soft_volume = s->soft_volume;
701 s->thread_info.soft_muted = s->muted;
702 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
704 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
705 || (s->base_volume == PA_VOLUME_NORM
706 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
707 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
708 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
709 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
710 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
712 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
713 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
714 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
716 if (s->suspend_cause)
717 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED, s->suspend_cause) == 0);
719 pa_assert_se(sink_set_state(s, PA_SINK_IDLE, 0) == 0);
721 pa_source_put(s->monitor_source);
723 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
724 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
726 /* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
727 * because module-switch-on-connect needs to know the old default sink */
728 pa_core_update_default_sink(s->core);
731 /* Called from main context */
732 void pa_sink_unlink(pa_sink* s) {
734 pa_sink_input *i, PA_UNUSED *j = NULL;
736 pa_sink_assert_ref(s);
737 pa_assert_ctl_context();
739 /* Please note that pa_sink_unlink() does more than simply
740 * reversing pa_sink_put(). It also undoes the registrations
741 * already done in pa_sink_new()! */
743 if (s->unlink_requested)
746 s->unlink_requested = true;
748 linked = PA_SINK_IS_LINKED(s->state);
751 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
753 if (s->state != PA_SINK_UNLINKED)
754 pa_namereg_unregister(s->core, s->name);
755 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
757 pa_core_update_default_sink(s->core);
760 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
762 while ((i = pa_idxset_first(s->inputs, NULL))) {
764 pa_sink_input_kill(i);
769 sink_set_state(s, PA_SINK_UNLINKED, 0);
771 s->state = PA_SINK_UNLINKED;
775 if (s->monitor_source)
776 pa_source_unlink(s->monitor_source);
779 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
780 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
784 /* Called from main context */
785 static void sink_free(pa_object *o) {
786 pa_sink *s = PA_SINK(o);
789 pa_assert_ctl_context();
790 pa_assert(pa_sink_refcnt(s) == 0);
791 pa_assert(!PA_SINK_IS_LINKED(s->state));
793 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
795 pa_sink_volume_change_flush(s);
797 if (s->monitor_source) {
798 pa_source_unref(s->monitor_source);
799 s->monitor_source = NULL;
802 pa_idxset_free(s->inputs, NULL);
803 pa_hashmap_free(s->thread_info.inputs);
805 if (s->silence.memblock)
806 pa_memblock_unref(s->silence.memblock);
812 pa_proplist_free(s->proplist);
815 pa_hashmap_free(s->ports);
820 /* Called from main context, and not while the IO thread is active, please */
821 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
822 pa_sink_assert_ref(s);
823 pa_assert_ctl_context();
827 if (s->monitor_source)
828 pa_source_set_asyncmsgq(s->monitor_source, q);
831 /* Called from main context, and not while the IO thread is active, please */
832 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
833 pa_sink_flags_t old_flags;
834 pa_sink_input *input;
837 pa_sink_assert_ref(s);
838 pa_assert_ctl_context();
840 /* For now, allow only a minimal set of flags to be changed. */
841 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
843 old_flags = s->flags;
844 s->flags = (s->flags & ~mask) | (value & mask);
846 if (s->flags == old_flags)
849 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
850 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
852 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
853 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
854 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
856 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
857 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
859 if (s->monitor_source)
860 pa_source_update_flags(s->monitor_source,
861 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
862 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
863 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
864 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
866 PA_IDXSET_FOREACH(input, s->inputs, idx) {
867 if (input->origin_sink)
868 pa_sink_update_flags(input->origin_sink, mask, value);
872 /* Called from IO context, or before _put() from main context */
873 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
874 pa_sink_assert_ref(s);
875 pa_sink_assert_io_context(s);
877 s->thread_info.rtpoll = p;
879 if (s->monitor_source)
880 pa_source_set_rtpoll(s->monitor_source, p);
883 /* Called from main context */
884 int pa_sink_update_status(pa_sink*s) {
885 pa_sink_assert_ref(s);
886 pa_assert_ctl_context();
887 pa_assert(PA_SINK_IS_LINKED(s->state));
889 if (s->state == PA_SINK_SUSPENDED)
892 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
895 /* Called from main context */
896 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
897 pa_suspend_cause_t merged_cause;
899 pa_sink_assert_ref(s);
900 pa_assert_ctl_context();
901 pa_assert(PA_SINK_IS_LINKED(s->state));
902 pa_assert(cause != 0);
905 merged_cause = s->suspend_cause | cause;
907 merged_cause = s->suspend_cause & ~cause;
910 return sink_set_state(s, PA_SINK_SUSPENDED, merged_cause);
912 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
915 /* Called from main context */
916 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
917 pa_sink_input *i, *n;
920 pa_sink_assert_ref(s);
921 pa_assert_ctl_context();
922 pa_assert(PA_SINK_IS_LINKED(s->state));
927 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
928 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
930 pa_sink_input_ref(i);
932 if (pa_sink_input_start_move(i) >= 0)
935 pa_sink_input_unref(i);
941 /* Called from main context */
942 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
945 pa_sink_assert_ref(s);
946 pa_assert_ctl_context();
947 pa_assert(PA_SINK_IS_LINKED(s->state));
950 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
951 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
952 if (pa_sink_input_finish_move(i, s, save) < 0)
953 pa_sink_input_fail_move(i);
956 pa_sink_input_unref(i);
959 pa_queue_free(q, NULL);
962 /* Called from main context */
963 void pa_sink_move_all_fail(pa_queue *q) {
966 pa_assert_ctl_context();
969 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
970 pa_sink_input_fail_move(i);
971 pa_sink_input_unref(i);
974 pa_queue_free(q, NULL);
977 /* Called from IO thread context */
978 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
983 pa_sink_assert_ref(s);
984 pa_sink_assert_io_context(s);
986 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
987 size_t uf = i->thread_info.underrun_for_sink;
989 /* Propagate down the filter tree */
990 if (i->origin_sink) {
991 size_t filter_result, left_to_play_origin;
993 /* The recursive call works in the origin sink domain ... */
994 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
996 /* .. and returns the time to sleep before waking up. We need the
997 * underrun duration for comparisons, so we undo the subtraction on
998 * the return value... */
999 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
1001 /* ... and convert it back to the master sink domain */
1002 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
1004 /* Remember the longest underrun so far */
1005 if (filter_result > result)
1006 result = filter_result;
1010 /* No underrun here, move on */
1012 } else if (uf >= left_to_play) {
1013 /* The sink has possibly consumed all the data the sink input provided */
1014 pa_sink_input_process_underrun(i);
1015 } else if (uf > result) {
1016 /* Remember the longest underrun so far */
1022 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
1023 (long) result, (long) left_to_play - result);
1024 return left_to_play - result;
1027 /* Called from IO thread context */
1028 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1032 pa_sink_assert_ref(s);
1033 pa_sink_assert_io_context(s);
1034 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1036 /* If nobody requested this and this is actually no real rewind
1037 * then we can short cut this. Please note that this means that
1038 * not all rewind requests triggered upstream will always be
1039 * translated in actual requests! */
1040 if (!s->thread_info.rewind_requested && nbytes <= 0)
1043 s->thread_info.rewind_nbytes = 0;
1044 s->thread_info.rewind_requested = false;
1047 pa_log_debug("Processing rewind...");
1048 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1049 pa_sink_volume_change_rewind(s, nbytes);
1052 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1053 pa_sink_input_assert_ref(i);
1054 pa_sink_input_process_rewind(i, nbytes);
1058 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1059 pa_source_process_rewind(s->monitor_source, nbytes);
1063 /* Called from IO thread context */
1064 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1068 size_t mixlength = *length;
1070 pa_sink_assert_ref(s);
1071 pa_sink_assert_io_context(s);
1074 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1075 pa_sink_input_assert_ref(i);
1077 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1079 if (mixlength == 0 || info->chunk.length < mixlength)
1080 mixlength = info->chunk.length;
1082 if (pa_memblock_is_silence(info->chunk.memblock)) {
1083 pa_memblock_unref(info->chunk.memblock);
1087 info->userdata = pa_sink_input_ref(i);
1089 pa_assert(info->chunk.memblock);
1090 pa_assert(info->chunk.length > 0);
1098 *length = mixlength;
1103 /* Called from IO thread context */
1104 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1108 unsigned n_unreffed = 0;
1110 pa_sink_assert_ref(s);
1111 pa_sink_assert_io_context(s);
1113 pa_assert(result->memblock);
1114 pa_assert(result->length > 0);
1116 /* We optimize for the case where the order of the inputs has not changed */
1118 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1120 pa_mix_info* m = NULL;
1122 pa_sink_input_assert_ref(i);
1124 /* Let's try to find the matching entry info the pa_mix_info array */
1125 for (j = 0; j < n; j ++) {
1127 if (info[p].userdata == i) {
1137 /* Drop read data */
1138 pa_sink_input_drop(i, result->length);
1140 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1142 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1143 void *ostate = NULL;
1144 pa_source_output *o;
1147 if (m && m->chunk.memblock) {
1149 pa_memblock_ref(c.memblock);
1150 pa_assert(result->length <= c.length);
1151 c.length = result->length;
1153 pa_memchunk_make_writable(&c, 0);
1154 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1157 pa_memblock_ref(c.memblock);
1158 pa_assert(result->length <= c.length);
1159 c.length = result->length;
1162 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1163 pa_source_output_assert_ref(o);
1164 pa_assert(o->direct_on_input == i);
1165 pa_source_post_direct(s->monitor_source, o, &c);
1168 pa_memblock_unref(c.memblock);
1173 if (m->chunk.memblock) {
1174 pa_memblock_unref(m->chunk.memblock);
1175 pa_memchunk_reset(&m->chunk);
1178 pa_sink_input_unref(m->userdata);
1185 /* Now drop references to entries that are included in the
1186 * pa_mix_info array but don't exist anymore */
1188 if (n_unreffed < n) {
1189 for (; n > 0; info++, n--) {
1191 pa_sink_input_unref(info->userdata);
1192 if (info->chunk.memblock)
1193 pa_memblock_unref(info->chunk.memblock);
1197 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1198 pa_source_post(s->monitor_source, result);
1201 /* Called from IO thread context */
1202 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1203 pa_mix_info info[MAX_MIX_CHANNELS];
1205 size_t block_size_max;
1207 pa_sink_assert_ref(s);
1208 pa_sink_assert_io_context(s);
1209 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1210 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1213 pa_assert(!s->thread_info.rewind_requested);
1214 pa_assert(s->thread_info.rewind_nbytes == 0);
1216 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1217 result->memblock = pa_memblock_ref(s->silence.memblock);
1218 result->index = s->silence.index;
1219 result->length = PA_MIN(s->silence.length, length);
1226 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1228 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1229 if (length > block_size_max)
1230 length = pa_frame_align(block_size_max, &s->sample_spec);
1232 pa_assert(length > 0);
1234 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1238 *result = s->silence;
1239 pa_memblock_ref(result->memblock);
1241 if (result->length > length)
1242 result->length = length;
1244 } else if (n == 1) {
1247 *result = info[0].chunk;
1248 pa_memblock_ref(result->memblock);
1250 if (result->length > length)
1251 result->length = length;
1253 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1255 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1256 pa_memblock_unref(result->memblock);
1257 pa_silence_memchunk_get(&s->core->silence_cache,
1262 } else if (!pa_cvolume_is_norm(&volume)) {
1263 pa_memchunk_make_writable(result, 0);
1264 pa_volume_memchunk(result, &s->sample_spec, &volume);
1268 result->memblock = pa_memblock_new(s->core->mempool, length);
1270 ptr = pa_memblock_acquire(result->memblock);
1271 result->length = pa_mix(info, n,
1274 &s->thread_info.soft_volume,
1275 s->thread_info.soft_muted);
1276 pa_memblock_release(result->memblock);
1281 inputs_drop(s, info, n, result);
1286 /* Called from IO thread context */
1287 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1288 pa_mix_info info[MAX_MIX_CHANNELS];
1290 size_t length, block_size_max;
1292 pa_sink_assert_ref(s);
1293 pa_sink_assert_io_context(s);
1294 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1296 pa_assert(target->memblock);
1297 pa_assert(target->length > 0);
1298 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1300 pa_assert(!s->thread_info.rewind_requested);
1301 pa_assert(s->thread_info.rewind_nbytes == 0);
1303 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1304 pa_silence_memchunk(target, &s->sample_spec);
1310 length = target->length;
1311 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1312 if (length > block_size_max)
1313 length = pa_frame_align(block_size_max, &s->sample_spec);
1315 pa_assert(length > 0);
1317 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1320 if (target->length > length)
1321 target->length = length;
1323 pa_silence_memchunk(target, &s->sample_spec);
1324 } else if (n == 1) {
1327 if (target->length > length)
1328 target->length = length;
1330 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1332 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1333 pa_silence_memchunk(target, &s->sample_spec);
1337 vchunk = info[0].chunk;
1338 pa_memblock_ref(vchunk.memblock);
1340 if (vchunk.length > length)
1341 vchunk.length = length;
1343 if (!pa_cvolume_is_norm(&volume)) {
1344 pa_memchunk_make_writable(&vchunk, 0);
1345 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1348 pa_memchunk_memcpy(target, &vchunk);
1349 pa_memblock_unref(vchunk.memblock);
1355 ptr = pa_memblock_acquire(target->memblock);
1357 target->length = pa_mix(info, n,
1358 (uint8_t*) ptr + target->index, length,
1360 &s->thread_info.soft_volume,
1361 s->thread_info.soft_muted);
1363 pa_memblock_release(target->memblock);
1366 inputs_drop(s, info, n, target);
1371 /* Called from IO thread context */
1372 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1376 pa_sink_assert_ref(s);
1377 pa_sink_assert_io_context(s);
1378 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1380 pa_assert(target->memblock);
1381 pa_assert(target->length > 0);
1382 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1384 pa_assert(!s->thread_info.rewind_requested);
1385 pa_assert(s->thread_info.rewind_nbytes == 0);
1387 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1388 pa_silence_memchunk(target, &s->sample_spec);
1401 pa_sink_render_into(s, &chunk);
1410 /* Called from IO thread context */
1411 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1412 pa_sink_assert_ref(s);
1413 pa_sink_assert_io_context(s);
1414 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1415 pa_assert(length > 0);
1416 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1419 pa_assert(!s->thread_info.rewind_requested);
1420 pa_assert(s->thread_info.rewind_nbytes == 0);
1424 pa_sink_render(s, length, result);
1426 if (result->length < length) {
1429 pa_memchunk_make_writable(result, length);
1431 chunk.memblock = result->memblock;
1432 chunk.index = result->index + result->length;
1433 chunk.length = length - result->length;
1435 pa_sink_render_into_full(s, &chunk);
1437 result->length = length;
1443 /* Called from main thread */
1444 void pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1445 pa_sample_spec desired_spec;
1446 uint32_t default_rate = s->default_sample_rate;
1447 uint32_t alternate_rate = s->alternate_sample_rate;
1450 bool default_rate_is_usable = false;
1451 bool alternate_rate_is_usable = false;
1452 bool avoid_resampling = s->avoid_resampling;
1454 if (pa_sample_spec_equal(spec, &s->sample_spec))
1457 if (!s->reconfigure)
1460 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1461 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1465 if (PA_SINK_IS_RUNNING(s->state)) {
1466 pa_log_info("Cannot update sample spec, SINK_IS_RUNNING, will keep using %s and %u Hz",
1467 pa_sample_format_to_string(s->sample_spec.format), s->sample_spec.rate);
1471 if (s->monitor_source) {
1472 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1473 pa_log_info("Cannot update sample spec, monitor source is RUNNING");
1478 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1481 desired_spec = s->sample_spec;
1484 /* We have to try to use the sink input format and rate */
1485 desired_spec.format = spec->format;
1486 desired_spec.rate = spec->rate;
1488 } else if (avoid_resampling) {
1489 /* We just try to set the sink input's sample rate if it's not too low */
1490 if (spec->rate >= default_rate || spec->rate >= alternate_rate)
1491 desired_spec.rate = spec->rate;
1492 desired_spec.format = spec->format;
1494 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1495 /* We can directly try to use this rate */
1496 desired_spec.rate = spec->rate;
1500 if (desired_spec.rate != spec->rate) {
1501 /* See if we can pick a rate that results in less resampling effort */
1502 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1503 default_rate_is_usable = true;
1504 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1505 default_rate_is_usable = true;
1506 if (alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1507 alternate_rate_is_usable = true;
1508 if (alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1509 alternate_rate_is_usable = true;
1511 if (alternate_rate_is_usable && !default_rate_is_usable)
1512 desired_spec.rate = alternate_rate;
1514 desired_spec.rate = default_rate;
1517 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1520 if (!passthrough && pa_sink_used_by(s) > 0)
1523 pa_log_debug("Suspending sink %s due to changing format, desired format = %s rate = %u",
1524 s->name, pa_sample_format_to_string(desired_spec.format), desired_spec.rate);
1525 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1527 s->reconfigure(s, &desired_spec, passthrough);
1529 /* update monitor source as well */
1530 if (s->monitor_source && !passthrough)
1531 pa_source_reconfigure(s->monitor_source, &s->sample_spec, false);
1532 pa_log_info("Reconfigured successfully");
1534 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1535 if (i->state == PA_SINK_INPUT_CORKED)
1536 pa_sink_input_update_resampler(i);
1539 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1542 /* Called from main thread */
1543 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1546 pa_sink_assert_ref(s);
1547 pa_assert_ctl_context();
1548 pa_assert(PA_SINK_IS_LINKED(s->state));
1550 /* The returned value is supposed to be in the time domain of the sound card! */
1552 if (s->state == PA_SINK_SUSPENDED)
1555 if (!(s->flags & PA_SINK_LATENCY))
1558 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1560 /* the return value is unsigned, so check that the offset can be added to usec without
1562 if (-s->port_latency_offset <= usec)
1563 usec += s->port_latency_offset;
1567 return (pa_usec_t)usec;
1570 /* Called from IO thread */
1571 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1575 pa_sink_assert_ref(s);
1576 pa_sink_assert_io_context(s);
1577 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1579 /* The returned value is supposed to be in the time domain of the sound card! */
1581 if (s->thread_info.state == PA_SINK_SUSPENDED)
1584 if (!(s->flags & PA_SINK_LATENCY))
1587 o = PA_MSGOBJECT(s);
1589 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1591 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1593 /* If allow_negative is false, the call should only return positive values, */
1594 usec += s->thread_info.port_latency_offset;
1595 if (!allow_negative && usec < 0)
1601 /* Called from the main thread (and also from the IO thread while the main
1602 * thread is waiting).
1604 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1605 * set. Instead, flat volume mode is detected by checking whether the root sink
1606 * has the flag set. */
1607 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1608 pa_sink_assert_ref(s);
1610 s = pa_sink_get_master(s);
1613 return (s->flags & PA_SINK_FLAT_VOLUME);
1618 /* Called from the main thread (and also from the IO thread while the main
1619 * thread is waiting). */
1620 pa_sink *pa_sink_get_master(pa_sink *s) {
1621 pa_sink_assert_ref(s);
1623 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1624 if (PA_UNLIKELY(!s->input_to_master))
1627 s = s->input_to_master->sink;
1633 /* Called from main context */
1634 bool pa_sink_is_filter(pa_sink *s) {
1635 pa_sink_assert_ref(s);
1637 return (s->input_to_master != NULL);
1640 /* Called from main context */
1641 bool pa_sink_is_passthrough(pa_sink *s) {
1642 pa_sink_input *alt_i;
1645 pa_sink_assert_ref(s);
1647 /* one and only one PASSTHROUGH input can possibly be connected */
1648 if (pa_idxset_size(s->inputs) == 1) {
1649 alt_i = pa_idxset_first(s->inputs, &idx);
1651 if (pa_sink_input_is_passthrough(alt_i))
1658 /* Called from main context */
1659 void pa_sink_enter_passthrough(pa_sink *s) {
1662 /* The sink implementation is reconfigured for passthrough in
1663 * pa_sink_reconfigure(). This function sets the PA core objects to
1664 * passthrough mode. */
1666 /* disable the monitor in passthrough mode */
1667 if (s->monitor_source) {
1668 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1669 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1672 /* set the volume to NORM */
1673 s->saved_volume = *pa_sink_get_volume(s, true);
1674 s->saved_save_volume = s->save_volume;
1676 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1677 pa_sink_set_volume(s, &volume, true, false);
1679 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1682 /* Called from main context */
1683 void pa_sink_leave_passthrough(pa_sink *s) {
1684 /* Unsuspend monitor */
1685 if (s->monitor_source) {
1686 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1687 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1690 /* Restore sink volume to what it was before we entered passthrough mode */
1691 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1693 pa_cvolume_init(&s->saved_volume);
1694 s->saved_save_volume = false;
1698 /* Called from main context. */
1699 static void compute_reference_ratio(pa_sink_input *i) {
1701 pa_cvolume remapped;
1705 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1708 * Calculates the reference ratio from the sink's reference
1709 * volume. This basically calculates:
1711 * i->reference_ratio = i->volume / i->sink->reference_volume
1714 remapped = i->sink->reference_volume;
1715 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1717 ratio = i->reference_ratio;
1719 for (c = 0; c < i->sample_spec.channels; c++) {
1721 /* We don't update when the sink volume is 0 anyway */
1722 if (remapped.values[c] <= PA_VOLUME_MUTED)
1725 /* Don't update the reference ratio unless necessary */
1726 if (pa_sw_volume_multiply(
1728 remapped.values[c]) == i->volume.values[c])
1731 ratio.values[c] = pa_sw_volume_divide(
1732 i->volume.values[c],
1733 remapped.values[c]);
1736 pa_sink_input_set_reference_ratio(i, &ratio);
1739 /* Called from main context. Only called for the root sink in volume sharing
1740 * cases, except for internal recursive calls. */
1741 static void compute_reference_ratios(pa_sink *s) {
1745 pa_sink_assert_ref(s);
1746 pa_assert_ctl_context();
1747 pa_assert(PA_SINK_IS_LINKED(s->state));
1748 pa_assert(pa_sink_flat_volume_enabled(s));
1750 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1751 compute_reference_ratio(i);
1753 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1754 && PA_SINK_IS_LINKED(i->origin_sink->state))
1755 compute_reference_ratios(i->origin_sink);
1759 /* Called from main context. Only called for the root sink in volume sharing
1760 * cases, except for internal recursive calls. */
1761 static void compute_real_ratios(pa_sink *s) {
1765 pa_sink_assert_ref(s);
1766 pa_assert_ctl_context();
1767 pa_assert(PA_SINK_IS_LINKED(s->state));
1768 pa_assert(pa_sink_flat_volume_enabled(s));
1770 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1772 pa_cvolume remapped;
1774 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1775 /* The origin sink uses volume sharing, so this input's real ratio
1776 * is handled as a special case - the real ratio must be 0 dB, and
1777 * as a result i->soft_volume must equal i->volume_factor. */
1778 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1779 i->soft_volume = i->volume_factor;
1781 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1782 compute_real_ratios(i->origin_sink);
1788 * This basically calculates:
1790 * i->real_ratio := i->volume / s->real_volume
1791 * i->soft_volume := i->real_ratio * i->volume_factor
1794 remapped = s->real_volume;
1795 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1797 i->real_ratio.channels = i->sample_spec.channels;
1798 i->soft_volume.channels = i->sample_spec.channels;
1800 for (c = 0; c < i->sample_spec.channels; c++) {
1802 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1803 /* We leave i->real_ratio untouched */
1804 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1808 /* Don't lose accuracy unless necessary */
1809 if (pa_sw_volume_multiply(
1810 i->real_ratio.values[c],
1811 remapped.values[c]) != i->volume.values[c])
1813 i->real_ratio.values[c] = pa_sw_volume_divide(
1814 i->volume.values[c],
1815 remapped.values[c]);
1817 i->soft_volume.values[c] = pa_sw_volume_multiply(
1818 i->real_ratio.values[c],
1819 i->volume_factor.values[c]);
1822 /* We don't copy the soft_volume to the thread_info data
1823 * here. That must be done by the caller */
1827 static pa_cvolume *cvolume_remap_minimal_impact(
1829 const pa_cvolume *template,
1830 const pa_channel_map *from,
1831 const pa_channel_map *to) {
1836 pa_assert(template);
1839 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1840 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1842 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1843 * mapping from sink input to sink volumes:
1845 * If template is a possible remapping from v it is used instead
1846 * of remapping anew.
1848 * If the channel maps don't match we set an all-channel volume on
1849 * the sink to ensure that changing a volume on one stream has no
1850 * effect that cannot be compensated for in another stream that
1851 * does not have the same channel map as the sink. */
1853 if (pa_channel_map_equal(from, to))
1857 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1862 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1866 /* Called from main thread. Only called for the root sink in volume sharing
1867 * cases, except for internal recursive calls. */
1868 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1872 pa_sink_assert_ref(s);
1873 pa_assert(max_volume);
1874 pa_assert(channel_map);
1875 pa_assert(pa_sink_flat_volume_enabled(s));
1877 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1878 pa_cvolume remapped;
1880 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1881 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1882 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1884 /* Ignore this input. The origin sink uses volume sharing, so this
1885 * input's volume will be set to be equal to the root sink's real
1886 * volume. Obviously this input's current volume must not then
1887 * affect what the root sink's real volume will be. */
1891 remapped = i->volume;
1892 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1893 pa_cvolume_merge(max_volume, max_volume, &remapped);
1897 /* Called from main thread. Only called for the root sink in volume sharing
1898 * cases, except for internal recursive calls. */
1899 static bool has_inputs(pa_sink *s) {
1903 pa_sink_assert_ref(s);
1905 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1906 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1913 /* Called from main thread. Only called for the root sink in volume sharing
1914 * cases, except for internal recursive calls. */
1915 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1919 pa_sink_assert_ref(s);
1920 pa_assert(new_volume);
1921 pa_assert(channel_map);
1923 s->real_volume = *new_volume;
1924 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1926 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1927 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1928 if (pa_sink_flat_volume_enabled(s)) {
1929 pa_cvolume new_input_volume;
1931 /* Follow the root sink's real volume. */
1932 new_input_volume = *new_volume;
1933 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1934 pa_sink_input_set_volume_direct(i, &new_input_volume);
1935 compute_reference_ratio(i);
1938 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1939 update_real_volume(i->origin_sink, new_volume, channel_map);
1944 /* Called from main thread. Only called for the root sink in shared volume
1946 static void compute_real_volume(pa_sink *s) {
1947 pa_sink_assert_ref(s);
1948 pa_assert_ctl_context();
1949 pa_assert(PA_SINK_IS_LINKED(s->state));
1950 pa_assert(pa_sink_flat_volume_enabled(s));
1951 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1953 /* This determines the maximum volume of all streams and sets
1954 * s->real_volume accordingly. */
1956 if (!has_inputs(s)) {
1957 /* In the special case that we have no sink inputs we leave the
1958 * volume unmodified. */
1959 update_real_volume(s, &s->reference_volume, &s->channel_map);
1963 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1965 /* First let's determine the new maximum volume of all inputs
1966 * connected to this sink */
1967 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1968 update_real_volume(s, &s->real_volume, &s->channel_map);
1970 /* Then, let's update the real ratios/soft volumes of all inputs
1971 * connected to this sink */
1972 compute_real_ratios(s);
1975 /* Called from main thread. Only called for the root sink in shared volume
1976 * cases, except for internal recursive calls. */
1977 static void propagate_reference_volume(pa_sink *s) {
1981 pa_sink_assert_ref(s);
1982 pa_assert_ctl_context();
1983 pa_assert(PA_SINK_IS_LINKED(s->state));
1984 pa_assert(pa_sink_flat_volume_enabled(s));
1986 /* This is called whenever the sink volume changes that is not
1987 * caused by a sink input volume change. We need to fix up the
1988 * sink input volumes accordingly */
1990 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1991 pa_cvolume new_volume;
1993 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1994 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1995 propagate_reference_volume(i->origin_sink);
1997 /* Since the origin sink uses volume sharing, this input's volume
1998 * needs to be updated to match the root sink's real volume, but
1999 * that will be done later in update_real_volume(). */
2003 /* This basically calculates:
2005 * i->volume := s->reference_volume * i->reference_ratio */
2007 new_volume = s->reference_volume;
2008 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2009 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2010 pa_sink_input_set_volume_direct(i, &new_volume);
2014 /* Called from main thread. Only called for the root sink in volume sharing
2015 * cases, except for internal recursive calls. The return value indicates
2016 * whether any reference volume actually changed. */
2017 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2019 bool reference_volume_changed;
2023 pa_sink_assert_ref(s);
2024 pa_assert(PA_SINK_IS_LINKED(s->state));
2026 pa_assert(channel_map);
2027 pa_assert(pa_cvolume_valid(v));
2030 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2032 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2033 pa_sink_set_reference_volume_direct(s, &volume);
2035 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2037 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2038 /* If the root sink's volume doesn't change, then there can't be any
2039 * changes in the other sinks in the sink tree either.
2041 * It's probably theoretically possible that even if the root sink's
2042 * volume changes slightly, some filter sink doesn't change its volume
2043 * due to rounding errors. If that happens, we still want to propagate
2044 * the changed root sink volume to the sinks connected to the
2045 * intermediate sink that didn't change its volume. This theoretical
2046 * possibility is the reason why we have that !(s->flags &
2047 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2048 * notice even if we returned here false always if
2049 * reference_volume_changed is false. */
2052 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2053 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2054 && PA_SINK_IS_LINKED(i->origin_sink->state))
2055 update_reference_volume(i->origin_sink, v, channel_map, false);
2061 /* Called from main thread */
2062 void pa_sink_set_volume(
2064 const pa_cvolume *volume,
2068 pa_cvolume new_reference_volume;
2071 pa_sink_assert_ref(s);
2072 pa_assert_ctl_context();
2073 pa_assert(PA_SINK_IS_LINKED(s->state));
2074 pa_assert(!volume || pa_cvolume_valid(volume));
2075 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2076 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2078 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2079 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2080 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2081 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2085 /* In case of volume sharing, the volume is set for the root sink first,
2086 * from which it's then propagated to the sharing sinks. */
2087 root_sink = pa_sink_get_master(s);
2089 if (PA_UNLIKELY(!root_sink))
2092 /* As a special exception we accept mono volumes on all sinks --
2093 * even on those with more complex channel maps */
2096 if (pa_cvolume_compatible(volume, &s->sample_spec))
2097 new_reference_volume = *volume;
2099 new_reference_volume = s->reference_volume;
2100 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2103 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2105 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2106 if (pa_sink_flat_volume_enabled(root_sink)) {
2107 /* OK, propagate this volume change back to the inputs */
2108 propagate_reference_volume(root_sink);
2110 /* And now recalculate the real volume */
2111 compute_real_volume(root_sink);
2113 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2117 /* If volume is NULL we synchronize the sink's real and
2118 * reference volumes with the stream volumes. */
2120 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2122 /* Ok, let's determine the new real volume */
2123 compute_real_volume(root_sink);
2125 /* Let's 'push' the reference volume if necessary */
2126 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2127 /* If the sink and its root don't have the same number of channels, we need to remap */
2128 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2129 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2130 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2132 /* Now that the reference volume is updated, we can update the streams'
2133 * reference ratios. */
2134 compute_reference_ratios(root_sink);
2137 if (root_sink->set_volume) {
2138 /* If we have a function set_volume(), then we do not apply a
2139 * soft volume by default. However, set_volume() is free to
2140 * apply one to root_sink->soft_volume */
2142 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2143 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2144 root_sink->set_volume(root_sink);
2147 /* If we have no function set_volume(), then the soft volume
2148 * becomes the real volume */
2149 root_sink->soft_volume = root_sink->real_volume;
2151 /* This tells the sink that soft volume and/or real volume changed */
2153 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2156 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2157 * Only to be called by sink implementor */
2158 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2160 pa_sink_assert_ref(s);
2161 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2163 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2164 pa_sink_assert_io_context(s);
2166 pa_assert_ctl_context();
2169 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2171 s->soft_volume = *volume;
2173 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2174 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2176 s->thread_info.soft_volume = s->soft_volume;
2179 /* Called from the main thread. Only called for the root sink in volume sharing
2180 * cases, except for internal recursive calls. */
2181 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2185 pa_sink_assert_ref(s);
2186 pa_assert(old_real_volume);
2187 pa_assert_ctl_context();
2188 pa_assert(PA_SINK_IS_LINKED(s->state));
2190 /* This is called when the hardware's real volume changes due to
2191 * some external event. We copy the real volume into our
2192 * reference volume and then rebuild the stream volumes based on
2193 * i->real_ratio which should stay fixed. */
2195 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2196 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2199 /* 1. Make the real volume the reference volume */
2200 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2203 if (pa_sink_flat_volume_enabled(s)) {
2205 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2206 pa_cvolume new_volume;
2208 /* 2. Since the sink's reference and real volumes are equal
2209 * now our ratios should be too. */
2210 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2212 /* 3. Recalculate the new stream reference volume based on the
2213 * reference ratio and the sink's reference volume.
2215 * This basically calculates:
2217 * i->volume = s->reference_volume * i->reference_ratio
2219 * This is identical to propagate_reference_volume() */
2220 new_volume = s->reference_volume;
2221 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2222 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2223 pa_sink_input_set_volume_direct(i, &new_volume);
2225 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2226 && PA_SINK_IS_LINKED(i->origin_sink->state))
2227 propagate_real_volume(i->origin_sink, old_real_volume);
2231 /* Something got changed in the hardware. It probably makes sense
2232 * to save changed hw settings given that hw volume changes not
2233 * triggered by PA are almost certainly done by the user. */
2234 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2235 s->save_volume = true;
2238 /* Called from io thread */
2239 void pa_sink_update_volume_and_mute(pa_sink *s) {
2241 pa_sink_assert_io_context(s);
2243 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2246 /* Called from main thread */
2247 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2248 pa_sink_assert_ref(s);
2249 pa_assert_ctl_context();
2250 pa_assert(PA_SINK_IS_LINKED(s->state));
2252 if (s->refresh_volume || force_refresh) {
2253 struct pa_cvolume old_real_volume;
2255 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2257 old_real_volume = s->real_volume;
2259 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2262 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2264 update_real_volume(s, &s->real_volume, &s->channel_map);
2265 propagate_real_volume(s, &old_real_volume);
2268 return &s->reference_volume;
2271 /* Called from main thread. In volume sharing cases, only the root sink may
2273 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2274 pa_cvolume old_real_volume;
2276 pa_sink_assert_ref(s);
2277 pa_assert_ctl_context();
2278 pa_assert(PA_SINK_IS_LINKED(s->state));
2279 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2281 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2283 old_real_volume = s->real_volume;
2284 update_real_volume(s, new_real_volume, &s->channel_map);
2285 propagate_real_volume(s, &old_real_volume);
2288 /* Called from main thread */
2289 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2292 pa_sink_assert_ref(s);
2293 pa_assert_ctl_context();
2295 old_muted = s->muted;
2297 if (mute == old_muted) {
2298 s->save_muted |= save;
2303 s->save_muted = save;
2305 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2306 s->set_mute_in_progress = true;
2308 s->set_mute_in_progress = false;
2311 if (!PA_SINK_IS_LINKED(s->state))
2314 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2315 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2316 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2317 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2320 /* Called from main thread */
2321 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2323 pa_sink_assert_ref(s);
2324 pa_assert_ctl_context();
2325 pa_assert(PA_SINK_IS_LINKED(s->state));
2327 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2330 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2331 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2332 pa_sink_mute_changed(s, mute);
2334 if (s->get_mute(s, &mute) >= 0)
2335 pa_sink_mute_changed(s, mute);
2342 /* Called from main thread */
2343 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2344 pa_sink_assert_ref(s);
2345 pa_assert_ctl_context();
2346 pa_assert(PA_SINK_IS_LINKED(s->state));
2348 if (s->set_mute_in_progress)
2351 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2352 * but we must have this here also, because the save parameter of
2353 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2354 * the mute state when it shouldn't be saved). */
2355 if (new_muted == s->muted)
2358 pa_sink_set_mute(s, new_muted, true);
2361 /* Called from main thread */
2362 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2363 pa_sink_assert_ref(s);
2364 pa_assert_ctl_context();
2367 pa_proplist_update(s->proplist, mode, p);
2369 if (PA_SINK_IS_LINKED(s->state)) {
2370 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2371 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2377 /* Called from main thread */
2378 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2379 void pa_sink_set_description(pa_sink *s, const char *description) {
2381 pa_sink_assert_ref(s);
2382 pa_assert_ctl_context();
2384 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2387 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2389 if (old && description && pa_streq(old, description))
2393 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2395 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2397 if (s->monitor_source) {
2400 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2401 pa_source_set_description(s->monitor_source, n);
2405 if (PA_SINK_IS_LINKED(s->state)) {
2406 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2407 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2411 /* Called from main thread */
2412 unsigned pa_sink_linked_by(pa_sink *s) {
2415 pa_sink_assert_ref(s);
2416 pa_assert_ctl_context();
2417 pa_assert(PA_SINK_IS_LINKED(s->state));
2419 ret = pa_idxset_size(s->inputs);
2421 /* We add in the number of streams connected to us here. Please
2422 * note the asymmetry to pa_sink_used_by()! */
2424 if (s->monitor_source)
2425 ret += pa_source_linked_by(s->monitor_source);
2430 /* Called from main thread */
2431 unsigned pa_sink_used_by(pa_sink *s) {
2434 pa_sink_assert_ref(s);
2435 pa_assert_ctl_context();
2436 pa_assert(PA_SINK_IS_LINKED(s->state));
2438 ret = pa_idxset_size(s->inputs);
2439 pa_assert(ret >= s->n_corked);
2441 /* Streams connected to our monitor source do not matter for
2442 * pa_sink_used_by()!.*/
2444 return ret - s->n_corked;
2447 /* Called from main thread */
2448 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2453 pa_sink_assert_ref(s);
2454 pa_assert_ctl_context();
2456 if (!PA_SINK_IS_LINKED(s->state))
2461 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2462 if (i == ignore_input)
2465 /* We do not assert here. It is perfectly valid for a sink input to
2466 * be in the INIT state (i.e. created, marked done but not yet put)
2467 * and we should not care if it's unlinked as it won't contribute
2468 * towards our busy status.
2470 if (!PA_SINK_INPUT_IS_LINKED(i->state))
2473 if (i->state == PA_SINK_INPUT_CORKED)
2476 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2482 if (s->monitor_source)
2483 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2488 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2490 case PA_SINK_INIT: return "INIT";
2491 case PA_SINK_IDLE: return "IDLE";
2492 case PA_SINK_RUNNING: return "RUNNING";
2493 case PA_SINK_SUSPENDED: return "SUSPENDED";
2494 case PA_SINK_UNLINKED: return "UNLINKED";
2495 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2498 pa_assert_not_reached();
2501 /* Called from the IO thread */
2502 static void sync_input_volumes_within_thread(pa_sink *s) {
2506 pa_sink_assert_ref(s);
2507 pa_sink_assert_io_context(s);
2509 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2510 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2513 i->thread_info.soft_volume = i->soft_volume;
2514 pa_sink_input_request_rewind(i, 0, true, false, false);
2518 /* Called from the IO thread. Only called for the root sink in volume sharing
2519 * cases, except for internal recursive calls. */
2520 static void set_shared_volume_within_thread(pa_sink *s) {
2521 pa_sink_input *i = NULL;
2524 pa_sink_assert_ref(s);
2526 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2528 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2529 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2530 set_shared_volume_within_thread(i->origin_sink);
2534 /* Called from IO thread, except when it is not */
2535 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2536 pa_sink *s = PA_SINK(o);
2537 pa_sink_assert_ref(s);
2539 switch ((pa_sink_message_t) code) {
2541 case PA_SINK_MESSAGE_ADD_INPUT: {
2542 pa_sink_input *i = PA_SINK_INPUT(userdata);
2544 /* If you change anything here, make sure to change the
2545 * sink input handling a few lines down at
2546 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2548 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2550 /* Since the caller sleeps in pa_sink_input_put(), we can
2551 * safely access data outside of thread_info even though
2554 if ((i->thread_info.sync_prev = i->sync_prev)) {
2555 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2556 pa_assert(i->sync_prev->sync_next == i);
2557 i->thread_info.sync_prev->thread_info.sync_next = i;
2560 if ((i->thread_info.sync_next = i->sync_next)) {
2561 pa_assert(i->sink == i->thread_info.sync_next->sink);
2562 pa_assert(i->sync_next->sync_prev == i);
2563 i->thread_info.sync_next->thread_info.sync_prev = i;
2566 pa_sink_input_attach(i);
2568 pa_sink_input_set_state_within_thread(i, i->state);
2570 /* The requested latency of the sink input needs to be fixed up and
2571 * then configured on the sink. If this causes the sink latency to
2572 * go down, the sink implementor is responsible for doing a rewind
2573 * in the update_requested_latency() callback to ensure that the
2574 * sink buffer doesn't contain more data than what the new latency
2577 * XXX: Does it really make sense to push this responsibility to
2578 * the sink implementors? Wouldn't it be better to do it once in
2579 * the core than many times in the modules? */
2581 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2582 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2584 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2585 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2587 /* We don't rewind here automatically. This is left to the
2588 * sink input implementor because some sink inputs need a
2589 * slow start, i.e. need some time to buffer client
2590 * samples before beginning streaming.
2592 * XXX: Does it really make sense to push this functionality to
2593 * the sink implementors? Wouldn't it be better to do it once in
2594 * the core than many times in the modules? */
2596 /* In flat volume mode we need to update the volume as
2598 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2601 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2602 pa_sink_input *i = PA_SINK_INPUT(userdata);
2604 /* If you change anything here, make sure to change the
2605 * sink input handling a few lines down at
2606 * PA_SINK_MESSAGE_START_MOVE, too. */
2608 pa_sink_input_detach(i);
2610 pa_sink_input_set_state_within_thread(i, i->state);
2612 /* Since the caller sleeps in pa_sink_input_unlink(),
2613 * we can safely access data outside of thread_info even
2614 * though it is mutable */
2616 pa_assert(!i->sync_prev);
2617 pa_assert(!i->sync_next);
2619 if (i->thread_info.sync_prev) {
2620 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2621 i->thread_info.sync_prev = NULL;
2624 if (i->thread_info.sync_next) {
2625 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2626 i->thread_info.sync_next = NULL;
2629 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2630 pa_sink_invalidate_requested_latency(s, true);
2631 pa_sink_request_rewind(s, (size_t) -1);
2633 /* In flat volume mode we need to update the volume as
2635 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2638 case PA_SINK_MESSAGE_START_MOVE: {
2639 pa_sink_input *i = PA_SINK_INPUT(userdata);
2641 /* We don't support moving synchronized streams. */
2642 pa_assert(!i->sync_prev);
2643 pa_assert(!i->sync_next);
2644 pa_assert(!i->thread_info.sync_next);
2645 pa_assert(!i->thread_info.sync_prev);
2647 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2649 size_t sink_nbytes, total_nbytes;
2651 /* The old sink probably has some audio from this
2652 * stream in its buffer. We want to "take it back" as
2653 * much as possible and play it to the new sink. We
2654 * don't know at this point how much the old sink can
2655 * rewind. We have to pick something, and that
2656 * something is the full latency of the old sink here.
2657 * So we rewind the stream buffer by the sink latency
2658 * amount, which may be more than what we should
2659 * rewind. This can result in a chunk of audio being
2660 * played both to the old sink and the new sink.
2662 * FIXME: Fix this code so that we don't have to make
2663 * guesses about how much the sink will actually be
2664 * able to rewind. If someone comes up with a solution
2665 * for this, something to note is that the part of the
2666 * latency that the old sink couldn't rewind should
2667 * ideally be compensated after the stream has moved
2668 * to the new sink by adding silence. The new sink
2669 * most likely can't start playing the moved stream
2670 * immediately, and that gap should be removed from
2671 * the "compensation silence" (at least at the time of
2672 * writing this, the move finish code will actually
2673 * already take care of dropping the new sink's
2674 * unrewindable latency, so taking into account the
2675 * unrewindable latency of the old sink is the only
2678 * The render_memblockq contents are discarded,
2679 * because when the sink changes, the format of the
2680 * audio stored in the render_memblockq may change
2681 * too, making the stored audio invalid. FIXME:
2682 * However, the read and write indices are moved back
2683 * the same amount, so if they are not the same now,
2684 * they won't be the same after the rewind either. If
2685 * the write index of the render_memblockq is ahead of
2686 * the read index, then the render_memblockq will feed
2687 * the new sink some silence first, which it shouldn't
2688 * do. The write index should be flushed to be the
2689 * same as the read index. */
2691 /* Get the latency of the sink */
2692 usec = pa_sink_get_latency_within_thread(s, false);
2693 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2694 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2696 if (total_nbytes > 0) {
2697 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2698 i->thread_info.rewrite_flush = true;
2699 pa_sink_input_process_rewind(i, sink_nbytes);
2703 pa_sink_input_detach(i);
2705 /* Let's remove the sink input ...*/
2706 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2708 pa_sink_invalidate_requested_latency(s, true);
2710 pa_log_debug("Requesting rewind due to started move");
2711 pa_sink_request_rewind(s, (size_t) -1);
2713 /* In flat volume mode we need to update the volume as
2715 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2718 case PA_SINK_MESSAGE_FINISH_MOVE: {
2719 pa_sink_input *i = PA_SINK_INPUT(userdata);
2721 /* We don't support moving synchronized streams. */
2722 pa_assert(!i->sync_prev);
2723 pa_assert(!i->sync_next);
2724 pa_assert(!i->thread_info.sync_next);
2725 pa_assert(!i->thread_info.sync_prev);
2727 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2729 pa_sink_input_attach(i);
2731 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2735 /* In the ideal case the new sink would start playing
2736 * the stream immediately. That requires the sink to
2737 * be able to rewind all of its latency, which usually
2738 * isn't possible, so there will probably be some gap
2739 * before the moved stream becomes audible. We then
2740 * have two possibilities: 1) start playing the stream
2741 * from where it is now, or 2) drop the unrewindable
2742 * latency of the sink from the stream. With option 1
2743 * we won't lose any audio but the stream will have a
2744 * pause. With option 2 we may lose some audio but the
2745 * stream time will be somewhat in sync with the wall
2746 * clock. Lennart seems to have chosen option 2 (one
2747 * of the reasons might have been that option 1 is
2748 * actually much harder to implement), so we drop the
2749 * latency of the new sink from the moved stream and
2750 * hope that the sink will undo most of that in the
2753 /* Get the latency of the sink */
2754 usec = pa_sink_get_latency_within_thread(s, false);
2755 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2758 pa_sink_input_drop(i, nbytes);
2760 pa_log_debug("Requesting rewind due to finished move");
2761 pa_sink_request_rewind(s, nbytes);
2764 /* Updating the requested sink latency has to be done
2765 * after the sink rewind request, not before, because
2766 * otherwise the sink may limit the rewind amount
2769 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2770 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2772 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2773 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2775 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2778 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2779 pa_sink *root_sink = pa_sink_get_master(s);
2781 if (PA_LIKELY(root_sink))
2782 set_shared_volume_within_thread(root_sink);
2787 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2789 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2791 pa_sink_volume_change_push(s);
2793 /* Fall through ... */
2795 case PA_SINK_MESSAGE_SET_VOLUME:
2797 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2798 s->thread_info.soft_volume = s->soft_volume;
2799 pa_sink_request_rewind(s, (size_t) -1);
2802 /* Fall through ... */
2804 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2805 sync_input_volumes_within_thread(s);
2808 case PA_SINK_MESSAGE_GET_VOLUME:
2810 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2812 pa_sink_volume_change_flush(s);
2813 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2816 /* In case sink implementor reset SW volume. */
2817 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2818 s->thread_info.soft_volume = s->soft_volume;
2819 pa_sink_request_rewind(s, (size_t) -1);
2824 case PA_SINK_MESSAGE_SET_MUTE:
2826 if (s->thread_info.soft_muted != s->muted) {
2827 s->thread_info.soft_muted = s->muted;
2828 pa_sink_request_rewind(s, (size_t) -1);
2831 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2836 case PA_SINK_MESSAGE_GET_MUTE:
2838 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2839 return s->get_mute(s, userdata);
2843 case PA_SINK_MESSAGE_SET_STATE: {
2844 struct set_state_data *data = userdata;
2845 bool suspend_change =
2846 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(data->state)) ||
2847 (PA_SINK_IS_OPENED(s->thread_info.state) && data->state == PA_SINK_SUSPENDED);
2849 if (s->set_state_in_io_thread) {
2852 if ((r = s->set_state_in_io_thread(s, data->state, data->suspend_cause)) < 0)
2856 s->thread_info.state = data->state;
2858 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2859 s->thread_info.rewind_nbytes = 0;
2860 s->thread_info.rewind_requested = false;
2863 if (suspend_change) {
2867 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2868 if (i->suspend_within_thread)
2869 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2875 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2877 pa_usec_t *usec = userdata;
2878 *usec = pa_sink_get_requested_latency_within_thread(s);
2880 /* Yes, that's right, the IO thread will see -1 when no
2881 * explicit requested latency is configured, the main
2882 * thread will see max_latency */
2883 if (*usec == (pa_usec_t) -1)
2884 *usec = s->thread_info.max_latency;
2889 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2890 pa_usec_t *r = userdata;
2892 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2897 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2898 pa_usec_t *r = userdata;
2900 r[0] = s->thread_info.min_latency;
2901 r[1] = s->thread_info.max_latency;
2906 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2908 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2911 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2913 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2916 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2918 *((size_t*) userdata) = s->thread_info.max_rewind;
2921 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2923 *((size_t*) userdata) = s->thread_info.max_request;
2926 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2928 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2931 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2933 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2936 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2937 /* This message is sent from IO-thread and handled in main thread. */
2938 pa_assert_ctl_context();
2940 /* Make sure we're not messing with main thread when no longer linked */
2941 if (!PA_SINK_IS_LINKED(s->state))
2944 pa_sink_get_volume(s, true);
2945 pa_sink_get_mute(s, true);
2948 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2949 s->thread_info.port_latency_offset = offset;
2952 case PA_SINK_MESSAGE_GET_LATENCY:
2953 case PA_SINK_MESSAGE_MAX:
2960 /* Called from main thread */
2961 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2966 pa_core_assert_ref(c);
2967 pa_assert_ctl_context();
2968 pa_assert(cause != 0);
2970 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2973 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2980 /* Called from IO thread */
2981 void pa_sink_detach_within_thread(pa_sink *s) {
2985 pa_sink_assert_ref(s);
2986 pa_sink_assert_io_context(s);
2987 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2989 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2990 pa_sink_input_detach(i);
2992 if (s->monitor_source)
2993 pa_source_detach_within_thread(s->monitor_source);
2996 /* Called from IO thread */
2997 void pa_sink_attach_within_thread(pa_sink *s) {
3001 pa_sink_assert_ref(s);
3002 pa_sink_assert_io_context(s);
3003 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3005 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3006 pa_sink_input_attach(i);
3008 if (s->monitor_source)
3009 pa_source_attach_within_thread(s->monitor_source);
3012 /* Called from IO thread */
3013 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3014 pa_sink_assert_ref(s);
3015 pa_sink_assert_io_context(s);
3016 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3018 if (nbytes == (size_t) -1)
3019 nbytes = s->thread_info.max_rewind;
3021 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3023 if (s->thread_info.rewind_requested &&
3024 nbytes <= s->thread_info.rewind_nbytes)
3027 s->thread_info.rewind_nbytes = nbytes;
3028 s->thread_info.rewind_requested = true;
3030 if (s->request_rewind)
3031 s->request_rewind(s);
3034 /* Called from IO thread */
3035 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3036 pa_usec_t result = (pa_usec_t) -1;
3039 pa_usec_t monitor_latency;
3041 pa_sink_assert_ref(s);
3042 pa_sink_assert_io_context(s);
3044 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3045 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3047 if (s->thread_info.requested_latency_valid)
3048 return s->thread_info.requested_latency;
3050 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3051 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3052 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3053 result = i->thread_info.requested_sink_latency;
3055 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3057 if (monitor_latency != (pa_usec_t) -1 &&
3058 (result == (pa_usec_t) -1 || result > monitor_latency))
3059 result = monitor_latency;
3061 if (result != (pa_usec_t) -1)
3062 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3064 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3065 /* Only cache if properly initialized */
3066 s->thread_info.requested_latency = result;
3067 s->thread_info.requested_latency_valid = true;
3073 /* Called from main thread */
3074 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3077 pa_sink_assert_ref(s);
3078 pa_assert_ctl_context();
3079 pa_assert(PA_SINK_IS_LINKED(s->state));
3081 if (s->state == PA_SINK_SUSPENDED)
3084 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3089 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3090 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3094 pa_sink_assert_ref(s);
3095 pa_sink_assert_io_context(s);
3097 if (max_rewind == s->thread_info.max_rewind)
3100 s->thread_info.max_rewind = max_rewind;
3102 if (PA_SINK_IS_LINKED(s->thread_info.state))
3103 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3104 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3106 if (s->monitor_source)
3107 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3110 /* Called from main thread */
3111 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3112 pa_sink_assert_ref(s);
3113 pa_assert_ctl_context();
3115 if (PA_SINK_IS_LINKED(s->state))
3116 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3118 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3121 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3122 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3125 pa_sink_assert_ref(s);
3126 pa_sink_assert_io_context(s);
3128 if (max_request == s->thread_info.max_request)
3131 s->thread_info.max_request = max_request;
3133 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3136 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3137 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3141 /* Called from main thread */
3142 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3143 pa_sink_assert_ref(s);
3144 pa_assert_ctl_context();
3146 if (PA_SINK_IS_LINKED(s->state))
3147 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3149 pa_sink_set_max_request_within_thread(s, max_request);
3152 /* Called from IO thread */
3153 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3157 pa_sink_assert_ref(s);
3158 pa_sink_assert_io_context(s);
3160 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3161 s->thread_info.requested_latency_valid = false;
3165 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3167 if (s->update_requested_latency)
3168 s->update_requested_latency(s);
3170 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3171 if (i->update_sink_requested_latency)
3172 i->update_sink_requested_latency(i);
3176 /* Called from main thread */
3177 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3178 pa_sink_assert_ref(s);
3179 pa_assert_ctl_context();
3181 /* min_latency == 0: no limit
3182 * min_latency anything else: specified limit
3184 * Similar for max_latency */
3186 if (min_latency < ABSOLUTE_MIN_LATENCY)
3187 min_latency = ABSOLUTE_MIN_LATENCY;
3189 if (max_latency <= 0 ||
3190 max_latency > ABSOLUTE_MAX_LATENCY)
3191 max_latency = ABSOLUTE_MAX_LATENCY;
3193 pa_assert(min_latency <= max_latency);
3195 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3196 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3197 max_latency == ABSOLUTE_MAX_LATENCY) ||
3198 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3200 if (PA_SINK_IS_LINKED(s->state)) {
3206 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3208 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3211 /* Called from main thread */
3212 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3213 pa_sink_assert_ref(s);
3214 pa_assert_ctl_context();
3215 pa_assert(min_latency);
3216 pa_assert(max_latency);
3218 if (PA_SINK_IS_LINKED(s->state)) {
3219 pa_usec_t r[2] = { 0, 0 };
3221 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3223 *min_latency = r[0];
3224 *max_latency = r[1];
3226 *min_latency = s->thread_info.min_latency;
3227 *max_latency = s->thread_info.max_latency;
3231 /* Called from IO thread */
3232 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3233 pa_sink_assert_ref(s);
3234 pa_sink_assert_io_context(s);
3236 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3237 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3238 pa_assert(min_latency <= max_latency);
3240 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3241 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3242 max_latency == ABSOLUTE_MAX_LATENCY) ||
3243 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3245 if (s->thread_info.min_latency == min_latency &&
3246 s->thread_info.max_latency == max_latency)
3249 s->thread_info.min_latency = min_latency;
3250 s->thread_info.max_latency = max_latency;
3252 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3256 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3257 if (i->update_sink_latency_range)
3258 i->update_sink_latency_range(i);
3261 pa_sink_invalidate_requested_latency(s, false);
3263 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3266 /* Called from main thread */
3267 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3268 pa_sink_assert_ref(s);
3269 pa_assert_ctl_context();
3271 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3272 pa_assert(latency == 0);
3276 if (latency < ABSOLUTE_MIN_LATENCY)
3277 latency = ABSOLUTE_MIN_LATENCY;
3279 if (latency > ABSOLUTE_MAX_LATENCY)
3280 latency = ABSOLUTE_MAX_LATENCY;
3282 if (PA_SINK_IS_LINKED(s->state))
3283 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3285 s->thread_info.fixed_latency = latency;
3287 pa_source_set_fixed_latency(s->monitor_source, latency);
3290 /* Called from main thread */
3291 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3294 pa_sink_assert_ref(s);
3295 pa_assert_ctl_context();
3297 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3300 if (PA_SINK_IS_LINKED(s->state))
3301 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3303 latency = s->thread_info.fixed_latency;
3308 /* Called from IO thread */
3309 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3310 pa_sink_assert_ref(s);
3311 pa_sink_assert_io_context(s);
3313 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3314 pa_assert(latency == 0);
3315 s->thread_info.fixed_latency = 0;
3317 if (s->monitor_source)
3318 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3323 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3324 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3326 if (s->thread_info.fixed_latency == latency)
3329 s->thread_info.fixed_latency = latency;
3331 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3335 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3336 if (i->update_sink_fixed_latency)
3337 i->update_sink_fixed_latency(i);
3340 pa_sink_invalidate_requested_latency(s, false);
3342 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3345 /* Called from main context */
3346 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3347 pa_sink_assert_ref(s);
3349 s->port_latency_offset = offset;
3351 if (PA_SINK_IS_LINKED(s->state))
3352 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3354 s->thread_info.port_latency_offset = offset;
3356 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3359 /* Called from main context */
3360 size_t pa_sink_get_max_rewind(pa_sink *s) {
3362 pa_assert_ctl_context();
3363 pa_sink_assert_ref(s);
3365 if (!PA_SINK_IS_LINKED(s->state))
3366 return s->thread_info.max_rewind;
3368 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3373 /* Called from main context */
3374 size_t pa_sink_get_max_request(pa_sink *s) {
3376 pa_sink_assert_ref(s);
3377 pa_assert_ctl_context();
3379 if (!PA_SINK_IS_LINKED(s->state))
3380 return s->thread_info.max_request;
3382 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3387 /* Called from main context */
3388 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3389 pa_device_port *port;
3391 pa_sink_assert_ref(s);
3392 pa_assert_ctl_context();
3395 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3396 return -PA_ERR_NOTIMPLEMENTED;
3400 return -PA_ERR_NOENTITY;
3402 if (!(port = pa_hashmap_get(s->ports, name)))
3403 return -PA_ERR_NOENTITY;
3405 if (s->active_port == port) {
3406 s->save_port = s->save_port || save;
3410 if (s->set_port(s, port) < 0)
3411 return -PA_ERR_NOENTITY;
3413 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3415 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3417 s->active_port = port;
3418 s->save_port = save;
3420 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3422 /* The active port affects the default sink selection. */
3423 pa_core_update_default_sink(s->core);
3425 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3430 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3431 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3435 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3438 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3440 if (pa_streq(ff, "microphone"))
3441 t = "audio-input-microphone";
3442 else if (pa_streq(ff, "webcam"))
3444 else if (pa_streq(ff, "computer"))
3446 else if (pa_streq(ff, "handset"))
3448 else if (pa_streq(ff, "portable"))
3449 t = "multimedia-player";
3450 else if (pa_streq(ff, "tv"))
3451 t = "video-display";
3454 * The following icons are not part of the icon naming spec,
3455 * because Rodney Dawes sucks as the maintainer of that spec.
3457 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3459 else if (pa_streq(ff, "headset"))
3460 t = "audio-headset";
3461 else if (pa_streq(ff, "headphone"))
3462 t = "audio-headphones";
3463 else if (pa_streq(ff, "speaker"))
3464 t = "audio-speakers";
3465 else if (pa_streq(ff, "hands-free"))
3466 t = "audio-handsfree";
3470 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3471 if (pa_streq(c, "modem"))
3478 t = "audio-input-microphone";
3481 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3482 if (strstr(profile, "analog"))
3484 else if (strstr(profile, "iec958"))
3486 else if (strstr(profile, "hdmi"))
3490 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3492 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3497 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3498 const char *s, *d = NULL, *k;
3501 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3505 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3509 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3510 if (pa_streq(s, "internal"))
3511 d = _("Built-in Audio");
3514 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3515 if (pa_streq(s, "modem"))
3519 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3524 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3527 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3529 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3534 bool pa_device_init_intended_roles(pa_proplist *p) {
3538 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3541 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3542 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3543 || pa_streq(s, "headset")) {
3544 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3551 unsigned pa_device_init_priority(pa_proplist *p) {
3553 unsigned priority = 0;
3557 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3559 if (pa_streq(s, "sound"))
3561 else if (!pa_streq(s, "modem"))
3565 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3567 if (pa_streq(s, "headphone"))
3569 else if (pa_streq(s, "hifi"))
3571 else if (pa_streq(s, "speaker"))
3573 else if (pa_streq(s, "portable"))
3577 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3579 if (pa_streq(s, "bluetooth"))
3581 else if (pa_streq(s, "usb"))
3583 else if (pa_streq(s, "pci"))
3587 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3589 if (pa_startswith(s, "analog-"))
3591 else if (pa_startswith(s, "iec958-"))
3598 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3600 /* Called from the IO thread. */
3601 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3602 pa_sink_volume_change *c;
3603 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3604 c = pa_xnew(pa_sink_volume_change, 1);
3606 PA_LLIST_INIT(pa_sink_volume_change, c);
3608 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3612 /* Called from the IO thread. */
3613 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3615 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3619 /* Called from the IO thread. */
3620 void pa_sink_volume_change_push(pa_sink *s) {
3621 pa_sink_volume_change *c = NULL;
3622 pa_sink_volume_change *nc = NULL;
3623 pa_sink_volume_change *pc = NULL;
3624 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3626 const char *direction = NULL;
3629 nc = pa_sink_volume_change_new(s);
3631 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3632 * Adding one more volume for HW would get us rid of this, but I am trying
3633 * to survive with the ones we already have. */
3634 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3636 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3637 pa_log_debug("Volume not changing");
3638 pa_sink_volume_change_free(nc);
3642 nc->at = pa_sink_get_latency_within_thread(s, false);
3643 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3645 if (s->thread_info.volume_changes_tail) {
3646 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3647 /* If volume is going up let's do it a bit late. If it is going
3648 * down let's do it a bit early. */
3649 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3650 if (nc->at + safety_margin > c->at) {
3651 nc->at += safety_margin;
3656 else if (nc->at - safety_margin > c->at) {
3657 nc->at -= safety_margin;
3665 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3666 nc->at += safety_margin;
3669 nc->at -= safety_margin;
3672 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3675 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3678 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3680 /* We can ignore volume events that came earlier but should happen later than this. */
3681 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3682 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3683 pa_sink_volume_change_free(c);
3686 s->thread_info.volume_changes_tail = nc;
3689 /* Called from the IO thread. */
3690 static void pa_sink_volume_change_flush(pa_sink *s) {
3691 pa_sink_volume_change *c = s->thread_info.volume_changes;
3693 s->thread_info.volume_changes = NULL;
3694 s->thread_info.volume_changes_tail = NULL;
3696 pa_sink_volume_change *next = c->next;
3697 pa_sink_volume_change_free(c);
3702 /* Called from the IO thread. */
3703 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3709 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3715 pa_assert(s->write_volume);
3717 now = pa_rtclock_now();
3719 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3720 pa_sink_volume_change *c = s->thread_info.volume_changes;
3721 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3722 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3723 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3725 s->thread_info.current_hw_volume = c->hw_volume;
3726 pa_sink_volume_change_free(c);
3732 if (s->thread_info.volume_changes) {
3734 *usec_to_next = s->thread_info.volume_changes->at - now;
3735 if (pa_log_ratelimit(PA_LOG_DEBUG))
3736 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3741 s->thread_info.volume_changes_tail = NULL;
3746 /* Called from the IO thread. */
3747 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3748 /* All the queued volume events later than current latency are shifted to happen earlier. */
3749 pa_sink_volume_change *c;
3750 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3751 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3752 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3754 pa_log_debug("latency = %lld", (long long) limit);
3755 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3757 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3758 pa_usec_t modified_limit = limit;
3759 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3760 modified_limit -= s->thread_info.volume_change_safety_margin;
3762 modified_limit += s->thread_info.volume_change_safety_margin;
3763 if (c->at > modified_limit) {
3765 if (c->at < modified_limit)
3766 c->at = modified_limit;
3768 prev_vol = pa_cvolume_avg(&c->hw_volume);
3770 pa_sink_volume_change_apply(s, NULL);
3773 /* Called from the main thread */
3774 /* Gets the list of formats supported by the sink. The members and idxset must
3775 * be freed by the caller. */
3776 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3781 if (s->get_formats) {
3782 /* Sink supports format query, all is good */
3783 ret = s->get_formats(s);
3785 /* Sink doesn't support format query, so assume it does PCM */
3786 pa_format_info *f = pa_format_info_new();
3787 f->encoding = PA_ENCODING_PCM;
3789 ret = pa_idxset_new(NULL, NULL);
3790 pa_idxset_put(ret, f, NULL);
3796 /* Called from the main thread */
3797 /* Allows an external source to set what formats a sink supports if the sink
3798 * permits this. The function makes a copy of the formats on success. */
3799 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3804 /* Sink supports setting formats -- let's give it a shot */
3805 return s->set_formats(s, formats);
3807 /* Sink doesn't support setting this -- bail out */
3811 /* Called from the main thread */
3812 /* Checks if the sink can accept this format */
3813 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3814 pa_idxset *formats = NULL;
3820 formats = pa_sink_get_formats(s);
3823 pa_format_info *finfo_device;
3826 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3827 if (pa_format_info_is_compatible(finfo_device, f)) {
3833 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3839 /* Called from the main thread */
3840 /* Calculates the intersection between formats supported by the sink and
3841 * in_formats, and returns these, in the order of the sink's formats. */
3842 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3843 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3844 pa_format_info *f_sink, *f_in;
3849 if (!in_formats || pa_idxset_isempty(in_formats))
3852 sink_formats = pa_sink_get_formats(s);
3854 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3855 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3856 if (pa_format_info_is_compatible(f_sink, f_in))
3857 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3863 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3868 /* Called from the main thread */
3869 void pa_sink_set_sample_format(pa_sink *s, pa_sample_format_t format) {
3870 pa_sample_format_t old_format;
3873 pa_assert(pa_sample_format_valid(format));
3875 old_format = s->sample_spec.format;
3876 if (old_format == format)
3879 pa_log_info("%s: format: %s -> %s",
3880 s->name, pa_sample_format_to_string(old_format), pa_sample_format_to_string(format));
3882 s->sample_spec.format = format;
3884 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3887 /* Called from the main thread */
3888 void pa_sink_set_sample_rate(pa_sink *s, uint32_t rate) {
3892 pa_assert(pa_sample_rate_valid(rate));
3894 old_rate = s->sample_spec.rate;
3895 if (old_rate == rate)
3898 pa_log_info("%s: rate: %u -> %u", s->name, old_rate, rate);
3900 s->sample_spec.rate = rate;
3902 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3905 /* Called from the main thread. */
3906 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3907 pa_cvolume old_volume;
3908 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3909 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3914 old_volume = s->reference_volume;
3916 if (pa_cvolume_equal(volume, &old_volume))
3919 s->reference_volume = *volume;
3920 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3921 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3922 s->flags & PA_SINK_DECIBEL_VOLUME),
3923 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3924 s->flags & PA_SINK_DECIBEL_VOLUME));
3926 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3927 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);