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 sink_message_set_port {
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) {
154 s->get_volume = NULL;
155 s->set_volume = NULL;
156 s->write_volume = NULL;
159 s->request_rewind = NULL;
160 s->update_requested_latency = NULL;
162 s->get_formats = NULL;
163 s->set_formats = NULL;
164 s->reconfigure = NULL;
167 /* Called from main context */
168 pa_sink* pa_sink_new(
170 pa_sink_new_data *data,
171 pa_sink_flags_t flags) {
175 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
176 pa_source_new_data source_data;
182 pa_assert(data->name);
183 pa_assert_ctl_context();
185 s = pa_msgobject_new(pa_sink);
187 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
188 pa_log_debug("Failed to register name %s.", data->name);
193 pa_sink_new_data_set_name(data, name);
195 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
197 pa_namereg_unregister(core, name);
201 /* FIXME, need to free s here on failure */
203 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
204 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
206 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
208 if (!data->channel_map_is_set)
209 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
211 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
212 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
214 /* FIXME: There should probably be a general function for checking whether
215 * the sink volume is allowed to be set, like there is for sink inputs. */
216 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
218 if (!data->volume_is_set) {
219 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
220 data->save_volume = false;
223 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
224 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
226 if (!data->muted_is_set)
230 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
232 pa_device_init_description(data->proplist, data->card);
233 pa_device_init_icon(data->proplist, true);
234 pa_device_init_intended_roles(data->proplist);
236 if (!data->active_port) {
237 pa_device_port *p = pa_device_port_find_best(data->ports);
239 pa_sink_new_data_set_port(data, p->name);
242 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
244 pa_namereg_unregister(core, name);
248 s->parent.parent.free = sink_free;
249 s->parent.process_msg = pa_sink_process_msg;
252 s->state = PA_SINK_INIT;
255 s->suspend_cause = data->suspend_cause;
256 pa_sink_set_mixer_dirty(s, false);
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 if (s->sample_spec.rate == s->alternate_sample_rate) {
275 pa_log_warn("Default and alternate sample rates are the same.");
276 s->alternate_sample_rate = 0;
279 s->inputs = pa_idxset_new(NULL, NULL);
281 s->input_to_master = NULL;
283 s->reference_volume = s->real_volume = data->volume;
284 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
285 s->base_volume = PA_VOLUME_NORM;
286 s->n_volume_steps = PA_VOLUME_NORM+1;
287 s->muted = data->muted;
288 s->refresh_volume = s->refresh_muted = false;
295 /* As a minor optimization we just steal the list instead of
297 s->ports = data->ports;
300 s->active_port = NULL;
301 s->save_port = false;
303 if (data->active_port)
304 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
305 s->save_port = data->save_port;
307 /* Hopefully the active port has already been assigned in the previous call
308 to pa_device_port_find_best, but better safe than sorry */
310 s->active_port = pa_device_port_find_best(s->ports);
313 s->port_latency_offset = s->active_port->latency_offset;
315 s->port_latency_offset = 0;
317 s->save_volume = data->save_volume;
318 s->save_muted = data->save_muted;
320 pa_silence_memchunk_get(
321 &core->silence_cache,
327 s->thread_info.rtpoll = NULL;
328 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
329 (pa_free_cb_t) pa_sink_input_unref);
330 s->thread_info.soft_volume = s->soft_volume;
331 s->thread_info.soft_muted = s->muted;
332 s->thread_info.state = s->state;
333 s->thread_info.rewind_nbytes = 0;
334 s->thread_info.rewind_requested = false;
335 s->thread_info.max_rewind = 0;
336 s->thread_info.max_request = 0;
337 s->thread_info.requested_latency_valid = false;
338 s->thread_info.requested_latency = 0;
339 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
340 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
341 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
343 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
344 s->thread_info.volume_changes_tail = NULL;
345 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
346 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
347 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
348 s->thread_info.port_latency_offset = s->port_latency_offset;
350 /* FIXME: This should probably be moved to pa_sink_put() */
351 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
354 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
356 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
357 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
360 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
361 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
365 pa_source_new_data_init(&source_data);
366 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
367 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
368 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
369 source_data.name = pa_sprintf_malloc("%s.monitor", name);
370 source_data.driver = data->driver;
371 source_data.module = data->module;
372 source_data.card = data->card;
374 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
375 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
376 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
378 s->monitor_source = pa_source_new(core, &source_data,
379 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
380 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
382 pa_source_new_data_done(&source_data);
384 if (!s->monitor_source) {
390 s->monitor_source->monitor_of = s;
392 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
393 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
394 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
399 /* Called from main context */
400 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
403 pa_sink_state_t original_state;
406 pa_assert_ctl_context();
408 if (s->state == state)
411 original_state = s->state;
414 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
415 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
418 if ((ret = s->set_state(s, state)) < 0)
422 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
425 s->set_state(s, original_state);
432 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
433 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
434 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
437 if (suspend_change) {
441 /* We're suspending or resuming, tell everyone about it */
443 PA_IDXSET_FOREACH(i, s->inputs, idx)
444 if (s->state == PA_SINK_SUSPENDED &&
445 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
446 pa_sink_input_kill(i);
448 i->suspend(i, state == PA_SINK_SUSPENDED);
450 if (s->monitor_source)
451 pa_source_sync_suspend(s->monitor_source);
457 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
463 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
464 pa_sink_flags_t flags;
467 pa_assert(!s->write_volume || cb);
471 /* Save the current flags so we can tell if they've changed */
475 /* The sink implementor is responsible for setting decibel volume support */
476 s->flags |= PA_SINK_HW_VOLUME_CTRL;
478 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
479 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
480 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
483 /* If the flags have changed after init, let any clients know via a change event */
484 if (s->state != PA_SINK_INIT && flags != s->flags)
485 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
488 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
489 pa_sink_flags_t flags;
492 pa_assert(!cb || s->set_volume);
494 s->write_volume = cb;
496 /* Save the current flags so we can tell if they've changed */
500 s->flags |= PA_SINK_DEFERRED_VOLUME;
502 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
504 /* If the flags have changed after init, let any clients know via a change event */
505 if (s->state != PA_SINK_INIT && flags != s->flags)
506 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
509 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
515 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
516 pa_sink_flags_t flags;
522 /* Save the current flags so we can tell if they've changed */
526 s->flags |= PA_SINK_HW_MUTE_CTRL;
528 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
530 /* If the flags have changed after init, let any clients know via a change event */
531 if (s->state != PA_SINK_INIT && flags != s->flags)
532 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
535 static void enable_flat_volume(pa_sink *s, bool enable) {
536 pa_sink_flags_t flags;
540 /* Always follow the overall user preference here */
541 enable = enable && s->core->flat_volumes;
543 /* Save the current flags so we can tell if they've changed */
547 s->flags |= PA_SINK_FLAT_VOLUME;
549 s->flags &= ~PA_SINK_FLAT_VOLUME;
551 /* If the flags have changed after init, let any clients know via a change event */
552 if (s->state != PA_SINK_INIT && flags != s->flags)
553 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
556 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
557 pa_sink_flags_t flags;
561 /* Save the current flags so we can tell if they've changed */
565 s->flags |= PA_SINK_DECIBEL_VOLUME;
566 enable_flat_volume(s, true);
568 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
569 enable_flat_volume(s, false);
572 /* If the flags have changed after init, let any clients know via a change event */
573 if (s->state != PA_SINK_INIT && flags != s->flags)
574 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
577 /* Called from main context */
578 void pa_sink_put(pa_sink* s) {
579 pa_sink_assert_ref(s);
580 pa_assert_ctl_context();
582 pa_assert(s->state == PA_SINK_INIT);
583 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
585 /* The following fields must be initialized properly when calling _put() */
586 pa_assert(s->asyncmsgq);
587 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
589 /* Generally, flags should be initialized via pa_sink_new(). As a
590 * special exception we allow some volume related flags to be set
591 * between _new() and _put() by the callback setter functions above.
593 * Thus we implement a couple safeguards here which ensure the above
594 * setters were used (or at least the implementor made manual changes
595 * in a compatible way).
597 * Note: All of these flags set here can change over the life time
599 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
600 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
601 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
603 /* XXX: Currently decibel volume is disabled for all sinks that use volume
604 * sharing. When the master sink supports decibel volume, it would be good
605 * to have the flag also in the filter sink, but currently we don't do that
606 * so that the flags of the filter sink never change when it's moved from
607 * a master sink to another. One solution for this problem would be to
608 * remove user-visible volume altogether from filter sinks when volume
609 * sharing is used, but the current approach was easier to implement... */
610 /* We always support decibel volumes in software, otherwise we leave it to
611 * the sink implementor to set this flag as needed.
613 * Note: This flag can also change over the life time of the sink. */
614 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
615 pa_sink_enable_decibel_volume(s, true);
616 s->soft_volume = s->reference_volume;
619 /* If the sink implementor support DB volumes by itself, we should always
620 * try and enable flat volumes too */
621 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
622 enable_flat_volume(s, true);
624 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
625 pa_sink *root_sink = pa_sink_get_master(s);
627 pa_assert(root_sink);
629 s->reference_volume = root_sink->reference_volume;
630 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
632 s->real_volume = root_sink->real_volume;
633 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
635 /* We assume that if the sink implementor changed the default
636 * volume he did so in real_volume, because that is the usual
637 * place where he is supposed to place his changes. */
638 s->reference_volume = s->real_volume;
640 s->thread_info.soft_volume = s->soft_volume;
641 s->thread_info.soft_muted = s->muted;
642 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
644 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
645 || (s->base_volume == PA_VOLUME_NORM
646 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
647 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
648 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
649 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
650 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
652 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
653 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
654 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
656 if (s->suspend_cause)
657 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED) == 0);
659 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
661 pa_source_put(s->monitor_source);
663 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
664 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
666 /* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
667 * because module-switch-on-connect needs to know the old default sink */
668 pa_core_update_default_sink(s->core);
671 /* Called from main context */
672 void pa_sink_unlink(pa_sink* s) {
674 pa_sink_input *i, PA_UNUSED *j = NULL;
676 pa_sink_assert_ref(s);
677 pa_assert_ctl_context();
679 /* Please note that pa_sink_unlink() does more than simply
680 * reversing pa_sink_put(). It also undoes the registrations
681 * already done in pa_sink_new()! */
683 if (s->unlink_requested)
686 s->unlink_requested = true;
688 linked = PA_SINK_IS_LINKED(s->state);
691 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
693 if (s->state != PA_SINK_UNLINKED)
694 pa_namereg_unregister(s->core, s->name);
695 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
697 pa_core_update_default_sink(s->core);
700 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
702 while ((i = pa_idxset_first(s->inputs, NULL))) {
704 pa_sink_input_kill(i);
709 sink_set_state(s, PA_SINK_UNLINKED);
711 s->state = PA_SINK_UNLINKED;
715 if (s->monitor_source)
716 pa_source_unlink(s->monitor_source);
719 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
720 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
724 /* Called from main context */
725 static void sink_free(pa_object *o) {
726 pa_sink *s = PA_SINK(o);
729 pa_assert_ctl_context();
730 pa_assert(pa_sink_refcnt(s) == 0);
731 pa_assert(!PA_SINK_IS_LINKED(s->state));
733 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
735 pa_sink_volume_change_flush(s);
737 if (s->monitor_source) {
738 pa_source_unref(s->monitor_source);
739 s->monitor_source = NULL;
742 pa_idxset_free(s->inputs, NULL);
743 pa_hashmap_free(s->thread_info.inputs);
745 if (s->silence.memblock)
746 pa_memblock_unref(s->silence.memblock);
752 pa_proplist_free(s->proplist);
755 pa_hashmap_free(s->ports);
760 /* Called from main context, and not while the IO thread is active, please */
761 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
762 pa_sink_assert_ref(s);
763 pa_assert_ctl_context();
767 if (s->monitor_source)
768 pa_source_set_asyncmsgq(s->monitor_source, q);
771 /* Called from main context, and not while the IO thread is active, please */
772 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
773 pa_sink_flags_t old_flags;
774 pa_sink_input *input;
777 pa_sink_assert_ref(s);
778 pa_assert_ctl_context();
780 /* For now, allow only a minimal set of flags to be changed. */
781 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
783 old_flags = s->flags;
784 s->flags = (s->flags & ~mask) | (value & mask);
786 if (s->flags == old_flags)
789 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
790 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
792 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
793 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
794 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
796 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
797 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
799 if (s->monitor_source)
800 pa_source_update_flags(s->monitor_source,
801 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
802 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
803 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
804 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
806 PA_IDXSET_FOREACH(input, s->inputs, idx) {
807 if (input->origin_sink)
808 pa_sink_update_flags(input->origin_sink, mask, value);
812 /* Called from IO context, or before _put() from main context */
813 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
814 pa_sink_assert_ref(s);
815 pa_sink_assert_io_context(s);
817 s->thread_info.rtpoll = p;
819 if (s->monitor_source)
820 pa_source_set_rtpoll(s->monitor_source, p);
823 /* Called from main context */
824 int pa_sink_update_status(pa_sink*s) {
825 pa_sink_assert_ref(s);
826 pa_assert_ctl_context();
827 pa_assert(PA_SINK_IS_LINKED(s->state));
829 if (s->state == PA_SINK_SUSPENDED)
832 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
835 /* Called from any context - must be threadsafe */
836 void pa_sink_set_mixer_dirty(pa_sink *s, bool is_dirty) {
837 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
840 /* Called from main context */
841 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
842 pa_sink_assert_ref(s);
843 pa_assert_ctl_context();
844 pa_assert(PA_SINK_IS_LINKED(s->state));
845 pa_assert(cause != 0);
848 s->suspend_cause |= cause;
849 s->monitor_source->suspend_cause |= cause;
851 s->suspend_cause &= ~cause;
852 s->monitor_source->suspend_cause &= ~cause;
855 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
856 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
857 it'll be handled just fine. */
858 pa_sink_set_mixer_dirty(s, false);
859 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
860 if (s->active_port && s->set_port) {
861 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
862 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
863 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
866 s->set_port(s, s->active_port);
876 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
879 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
881 if (s->suspend_cause)
882 return sink_set_state(s, PA_SINK_SUSPENDED);
884 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
887 /* Called from main context */
888 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
889 pa_sink_input *i, *n;
892 pa_sink_assert_ref(s);
893 pa_assert_ctl_context();
894 pa_assert(PA_SINK_IS_LINKED(s->state));
899 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
900 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
902 pa_sink_input_ref(i);
904 if (pa_sink_input_start_move(i) >= 0)
907 pa_sink_input_unref(i);
913 /* Called from main context */
914 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
917 pa_sink_assert_ref(s);
918 pa_assert_ctl_context();
919 pa_assert(PA_SINK_IS_LINKED(s->state));
922 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
923 if (pa_sink_input_finish_move(i, s, save) < 0)
924 pa_sink_input_fail_move(i);
926 pa_sink_input_unref(i);
929 pa_queue_free(q, NULL);
932 /* Called from main context */
933 void pa_sink_move_all_fail(pa_queue *q) {
936 pa_assert_ctl_context();
939 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
940 pa_sink_input_fail_move(i);
941 pa_sink_input_unref(i);
944 pa_queue_free(q, NULL);
947 /* Called from IO thread context */
948 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
953 pa_sink_assert_ref(s);
954 pa_sink_assert_io_context(s);
956 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
957 size_t uf = i->thread_info.underrun_for_sink;
959 /* Propagate down the filter tree */
960 if (i->origin_sink) {
961 size_t filter_result, left_to_play_origin;
963 /* The recursive call works in the origin sink domain ... */
964 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
966 /* .. and returns the time to sleep before waking up. We need the
967 * underrun duration for comparisons, so we undo the subtraction on
968 * the return value... */
969 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
971 /* ... and convert it back to the master sink domain */
972 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
974 /* Remember the longest underrun so far */
975 if (filter_result > result)
976 result = filter_result;
980 /* No underrun here, move on */
982 } else if (uf >= left_to_play) {
983 /* The sink has possibly consumed all the data the sink input provided */
984 pa_sink_input_process_underrun(i);
985 } else if (uf > result) {
986 /* Remember the longest underrun so far */
992 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
993 (long) result, (long) left_to_play - result);
994 return left_to_play - result;
997 /* Called from IO thread context */
998 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1002 pa_sink_assert_ref(s);
1003 pa_sink_assert_io_context(s);
1004 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1006 /* If nobody requested this and this is actually no real rewind
1007 * then we can short cut this. Please note that this means that
1008 * not all rewind requests triggered upstream will always be
1009 * translated in actual requests! */
1010 if (!s->thread_info.rewind_requested && nbytes <= 0)
1013 s->thread_info.rewind_nbytes = 0;
1014 s->thread_info.rewind_requested = false;
1017 pa_log_debug("Processing rewind...");
1018 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1019 pa_sink_volume_change_rewind(s, nbytes);
1022 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1023 pa_sink_input_assert_ref(i);
1024 pa_sink_input_process_rewind(i, nbytes);
1028 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1029 pa_source_process_rewind(s->monitor_source, nbytes);
1033 /* Called from IO thread context */
1034 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1038 size_t mixlength = *length;
1040 pa_sink_assert_ref(s);
1041 pa_sink_assert_io_context(s);
1044 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1045 pa_sink_input_assert_ref(i);
1047 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1049 if (mixlength == 0 || info->chunk.length < mixlength)
1050 mixlength = info->chunk.length;
1052 if (pa_memblock_is_silence(info->chunk.memblock)) {
1053 pa_memblock_unref(info->chunk.memblock);
1057 info->userdata = pa_sink_input_ref(i);
1059 pa_assert(info->chunk.memblock);
1060 pa_assert(info->chunk.length > 0);
1068 *length = mixlength;
1073 /* Called from IO thread context */
1074 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1078 unsigned n_unreffed = 0;
1080 pa_sink_assert_ref(s);
1081 pa_sink_assert_io_context(s);
1083 pa_assert(result->memblock);
1084 pa_assert(result->length > 0);
1086 /* We optimize for the case where the order of the inputs has not changed */
1088 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1090 pa_mix_info* m = NULL;
1092 pa_sink_input_assert_ref(i);
1094 /* Let's try to find the matching entry info the pa_mix_info array */
1095 for (j = 0; j < n; j ++) {
1097 if (info[p].userdata == i) {
1107 /* Drop read data */
1108 pa_sink_input_drop(i, result->length);
1110 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1112 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1113 void *ostate = NULL;
1114 pa_source_output *o;
1117 if (m && m->chunk.memblock) {
1119 pa_memblock_ref(c.memblock);
1120 pa_assert(result->length <= c.length);
1121 c.length = result->length;
1123 pa_memchunk_make_writable(&c, 0);
1124 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1127 pa_memblock_ref(c.memblock);
1128 pa_assert(result->length <= c.length);
1129 c.length = result->length;
1132 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1133 pa_source_output_assert_ref(o);
1134 pa_assert(o->direct_on_input == i);
1135 pa_source_post_direct(s->monitor_source, o, &c);
1138 pa_memblock_unref(c.memblock);
1143 if (m->chunk.memblock) {
1144 pa_memblock_unref(m->chunk.memblock);
1145 pa_memchunk_reset(&m->chunk);
1148 pa_sink_input_unref(m->userdata);
1155 /* Now drop references to entries that are included in the
1156 * pa_mix_info array but don't exist anymore */
1158 if (n_unreffed < n) {
1159 for (; n > 0; info++, n--) {
1161 pa_sink_input_unref(info->userdata);
1162 if (info->chunk.memblock)
1163 pa_memblock_unref(info->chunk.memblock);
1167 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1168 pa_source_post(s->monitor_source, result);
1171 /* Called from IO thread context */
1172 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1173 pa_mix_info info[MAX_MIX_CHANNELS];
1175 size_t block_size_max;
1177 pa_sink_assert_ref(s);
1178 pa_sink_assert_io_context(s);
1179 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1180 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1183 pa_assert(!s->thread_info.rewind_requested);
1184 pa_assert(s->thread_info.rewind_nbytes == 0);
1186 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1187 result->memblock = pa_memblock_ref(s->silence.memblock);
1188 result->index = s->silence.index;
1189 result->length = PA_MIN(s->silence.length, length);
1196 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1198 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1199 if (length > block_size_max)
1200 length = pa_frame_align(block_size_max, &s->sample_spec);
1202 pa_assert(length > 0);
1204 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1208 *result = s->silence;
1209 pa_memblock_ref(result->memblock);
1211 if (result->length > length)
1212 result->length = length;
1214 } else if (n == 1) {
1217 *result = info[0].chunk;
1218 pa_memblock_ref(result->memblock);
1220 if (result->length > length)
1221 result->length = length;
1223 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1225 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1226 pa_memblock_unref(result->memblock);
1227 pa_silence_memchunk_get(&s->core->silence_cache,
1232 } else if (!pa_cvolume_is_norm(&volume)) {
1233 pa_memchunk_make_writable(result, 0);
1234 pa_volume_memchunk(result, &s->sample_spec, &volume);
1238 result->memblock = pa_memblock_new(s->core->mempool, length);
1240 ptr = pa_memblock_acquire(result->memblock);
1241 result->length = pa_mix(info, n,
1244 &s->thread_info.soft_volume,
1245 s->thread_info.soft_muted);
1246 pa_memblock_release(result->memblock);
1251 inputs_drop(s, info, n, result);
1256 /* Called from IO thread context */
1257 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1258 pa_mix_info info[MAX_MIX_CHANNELS];
1260 size_t length, block_size_max;
1262 pa_sink_assert_ref(s);
1263 pa_sink_assert_io_context(s);
1264 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1266 pa_assert(target->memblock);
1267 pa_assert(target->length > 0);
1268 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1270 pa_assert(!s->thread_info.rewind_requested);
1271 pa_assert(s->thread_info.rewind_nbytes == 0);
1273 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1274 pa_silence_memchunk(target, &s->sample_spec);
1280 length = target->length;
1281 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1282 if (length > block_size_max)
1283 length = pa_frame_align(block_size_max, &s->sample_spec);
1285 pa_assert(length > 0);
1287 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1290 if (target->length > length)
1291 target->length = length;
1293 pa_silence_memchunk(target, &s->sample_spec);
1294 } else if (n == 1) {
1297 if (target->length > length)
1298 target->length = length;
1300 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1302 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1303 pa_silence_memchunk(target, &s->sample_spec);
1307 vchunk = info[0].chunk;
1308 pa_memblock_ref(vchunk.memblock);
1310 if (vchunk.length > length)
1311 vchunk.length = length;
1313 if (!pa_cvolume_is_norm(&volume)) {
1314 pa_memchunk_make_writable(&vchunk, 0);
1315 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1318 pa_memchunk_memcpy(target, &vchunk);
1319 pa_memblock_unref(vchunk.memblock);
1325 ptr = pa_memblock_acquire(target->memblock);
1327 target->length = pa_mix(info, n,
1328 (uint8_t*) ptr + target->index, length,
1330 &s->thread_info.soft_volume,
1331 s->thread_info.soft_muted);
1333 pa_memblock_release(target->memblock);
1336 inputs_drop(s, info, n, target);
1341 /* Called from IO thread context */
1342 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1346 pa_sink_assert_ref(s);
1347 pa_sink_assert_io_context(s);
1348 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1350 pa_assert(target->memblock);
1351 pa_assert(target->length > 0);
1352 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1354 pa_assert(!s->thread_info.rewind_requested);
1355 pa_assert(s->thread_info.rewind_nbytes == 0);
1357 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1358 pa_silence_memchunk(target, &s->sample_spec);
1371 pa_sink_render_into(s, &chunk);
1380 /* Called from IO thread context */
1381 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1382 pa_sink_assert_ref(s);
1383 pa_sink_assert_io_context(s);
1384 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1385 pa_assert(length > 0);
1386 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1389 pa_assert(!s->thread_info.rewind_requested);
1390 pa_assert(s->thread_info.rewind_nbytes == 0);
1394 pa_sink_render(s, length, result);
1396 if (result->length < length) {
1399 pa_memchunk_make_writable(result, length);
1401 chunk.memblock = result->memblock;
1402 chunk.index = result->index + result->length;
1403 chunk.length = length - result->length;
1405 pa_sink_render_into_full(s, &chunk);
1407 result->length = length;
1413 /* Called from main thread */
1414 int pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1416 pa_sample_spec desired_spec;
1417 uint32_t default_rate = s->default_sample_rate;
1418 uint32_t alternate_rate = s->alternate_sample_rate;
1421 bool default_rate_is_usable = false;
1422 bool alternate_rate_is_usable = false;
1423 bool avoid_resampling = s->core->avoid_resampling;
1425 /* We currently only try to reconfigure the sample rate */
1427 if (pa_sample_spec_equal(spec, &s->sample_spec))
1430 if (!s->reconfigure)
1433 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1434 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1438 if (PA_SINK_IS_RUNNING(s->state)) {
1439 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1440 s->sample_spec.rate);
1444 if (s->monitor_source) {
1445 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1446 pa_log_info("Cannot update rate, monitor source is RUNNING");
1451 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1454 desired_spec = s->sample_spec;
1457 /* We have to try to use the sink input rate */
1458 desired_spec.rate = spec->rate;
1460 } else if (avoid_resampling && (spec->rate >= default_rate || spec->rate >= alternate_rate)) {
1461 /* We just try to set the sink input's sample rate if it's not too low */
1462 desired_spec.rate = spec->rate;
1464 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1465 /* We can directly try to use this rate */
1466 desired_spec.rate = spec->rate;
1469 /* See if we can pick a rate that results in less resampling effort */
1470 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1471 default_rate_is_usable = true;
1472 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1473 default_rate_is_usable = true;
1474 if (alternate_rate && alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1475 alternate_rate_is_usable = true;
1476 if (alternate_rate && alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1477 alternate_rate_is_usable = true;
1479 if (alternate_rate_is_usable && !default_rate_is_usable)
1480 desired_spec.rate = alternate_rate;
1482 desired_spec.rate = default_rate;
1485 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1488 if (!passthrough && pa_sink_used_by(s) > 0)
1491 pa_log_debug("Suspending sink %s due to changing format.", s->name);
1492 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1494 if (s->reconfigure(s, &desired_spec, passthrough) >= 0) {
1495 /* update monitor source as well */
1496 if (s->monitor_source && !passthrough)
1497 pa_source_reconfigure(s->monitor_source, &desired_spec, false);
1498 pa_log_info("Changed format successfully");
1500 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1501 if (i->state == PA_SINK_INPUT_CORKED)
1502 pa_sink_input_update_rate(i);
1508 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1513 /* Called from main thread */
1514 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1517 pa_sink_assert_ref(s);
1518 pa_assert_ctl_context();
1519 pa_assert(PA_SINK_IS_LINKED(s->state));
1521 /* The returned value is supposed to be in the time domain of the sound card! */
1523 if (s->state == PA_SINK_SUSPENDED)
1526 if (!(s->flags & PA_SINK_LATENCY))
1529 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1531 /* the return value is unsigned, so check that the offset can be added to usec without
1533 if (-s->port_latency_offset <= usec)
1534 usec += s->port_latency_offset;
1538 return (pa_usec_t)usec;
1541 /* Called from IO thread */
1542 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1546 pa_sink_assert_ref(s);
1547 pa_sink_assert_io_context(s);
1548 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1550 /* The returned value is supposed to be in the time domain of the sound card! */
1552 if (s->thread_info.state == PA_SINK_SUSPENDED)
1555 if (!(s->flags & PA_SINK_LATENCY))
1558 o = PA_MSGOBJECT(s);
1560 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1562 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1564 /* If allow_negative is false, the call should only return positive values, */
1565 usec += s->thread_info.port_latency_offset;
1566 if (!allow_negative && usec < 0)
1572 /* Called from the main thread (and also from the IO thread while the main
1573 * thread is waiting).
1575 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1576 * set. Instead, flat volume mode is detected by checking whether the root sink
1577 * has the flag set. */
1578 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1579 pa_sink_assert_ref(s);
1581 s = pa_sink_get_master(s);
1584 return (s->flags & PA_SINK_FLAT_VOLUME);
1589 /* Called from the main thread (and also from the IO thread while the main
1590 * thread is waiting). */
1591 pa_sink *pa_sink_get_master(pa_sink *s) {
1592 pa_sink_assert_ref(s);
1594 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1595 if (PA_UNLIKELY(!s->input_to_master))
1598 s = s->input_to_master->sink;
1604 /* Called from main context */
1605 bool pa_sink_is_filter(pa_sink *s) {
1606 pa_sink_assert_ref(s);
1608 return (s->input_to_master != NULL);
1611 /* Called from main context */
1612 bool pa_sink_is_passthrough(pa_sink *s) {
1613 pa_sink_input *alt_i;
1616 pa_sink_assert_ref(s);
1618 /* one and only one PASSTHROUGH input can possibly be connected */
1619 if (pa_idxset_size(s->inputs) == 1) {
1620 alt_i = pa_idxset_first(s->inputs, &idx);
1622 if (pa_sink_input_is_passthrough(alt_i))
1629 /* Called from main context */
1630 void pa_sink_enter_passthrough(pa_sink *s) {
1633 /* The sink implementation is reconfigured for passthrough in
1634 * pa_sink_reconfigure(). This function sets the PA core objects to
1635 * passthrough mode. */
1637 /* disable the monitor in passthrough mode */
1638 if (s->monitor_source) {
1639 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1640 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1643 /* set the volume to NORM */
1644 s->saved_volume = *pa_sink_get_volume(s, true);
1645 s->saved_save_volume = s->save_volume;
1647 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1648 pa_sink_set_volume(s, &volume, true, false);
1650 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1653 /* Called from main context */
1654 void pa_sink_leave_passthrough(pa_sink *s) {
1655 /* Unsuspend monitor */
1656 if (s->monitor_source) {
1657 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1658 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1661 /* Restore sink volume to what it was before we entered passthrough mode */
1662 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1664 pa_cvolume_init(&s->saved_volume);
1665 s->saved_save_volume = false;
1669 /* Called from main context. */
1670 static void compute_reference_ratio(pa_sink_input *i) {
1672 pa_cvolume remapped;
1676 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1679 * Calculates the reference ratio from the sink's reference
1680 * volume. This basically calculates:
1682 * i->reference_ratio = i->volume / i->sink->reference_volume
1685 remapped = i->sink->reference_volume;
1686 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1688 ratio = i->reference_ratio;
1690 for (c = 0; c < i->sample_spec.channels; c++) {
1692 /* We don't update when the sink volume is 0 anyway */
1693 if (remapped.values[c] <= PA_VOLUME_MUTED)
1696 /* Don't update the reference ratio unless necessary */
1697 if (pa_sw_volume_multiply(
1699 remapped.values[c]) == i->volume.values[c])
1702 ratio.values[c] = pa_sw_volume_divide(
1703 i->volume.values[c],
1704 remapped.values[c]);
1707 pa_sink_input_set_reference_ratio(i, &ratio);
1710 /* Called from main context. Only called for the root sink in volume sharing
1711 * cases, except for internal recursive calls. */
1712 static void compute_reference_ratios(pa_sink *s) {
1716 pa_sink_assert_ref(s);
1717 pa_assert_ctl_context();
1718 pa_assert(PA_SINK_IS_LINKED(s->state));
1719 pa_assert(pa_sink_flat_volume_enabled(s));
1721 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1722 compute_reference_ratio(i);
1724 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1725 && PA_SINK_IS_LINKED(i->origin_sink->state))
1726 compute_reference_ratios(i->origin_sink);
1730 /* Called from main context. Only called for the root sink in volume sharing
1731 * cases, except for internal recursive calls. */
1732 static void compute_real_ratios(pa_sink *s) {
1736 pa_sink_assert_ref(s);
1737 pa_assert_ctl_context();
1738 pa_assert(PA_SINK_IS_LINKED(s->state));
1739 pa_assert(pa_sink_flat_volume_enabled(s));
1741 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1743 pa_cvolume remapped;
1745 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1746 /* The origin sink uses volume sharing, so this input's real ratio
1747 * is handled as a special case - the real ratio must be 0 dB, and
1748 * as a result i->soft_volume must equal i->volume_factor. */
1749 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1750 i->soft_volume = i->volume_factor;
1752 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1753 compute_real_ratios(i->origin_sink);
1759 * This basically calculates:
1761 * i->real_ratio := i->volume / s->real_volume
1762 * i->soft_volume := i->real_ratio * i->volume_factor
1765 remapped = s->real_volume;
1766 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1768 i->real_ratio.channels = i->sample_spec.channels;
1769 i->soft_volume.channels = i->sample_spec.channels;
1771 for (c = 0; c < i->sample_spec.channels; c++) {
1773 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1774 /* We leave i->real_ratio untouched */
1775 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1779 /* Don't lose accuracy unless necessary */
1780 if (pa_sw_volume_multiply(
1781 i->real_ratio.values[c],
1782 remapped.values[c]) != i->volume.values[c])
1784 i->real_ratio.values[c] = pa_sw_volume_divide(
1785 i->volume.values[c],
1786 remapped.values[c]);
1788 i->soft_volume.values[c] = pa_sw_volume_multiply(
1789 i->real_ratio.values[c],
1790 i->volume_factor.values[c]);
1793 /* We don't copy the soft_volume to the thread_info data
1794 * here. That must be done by the caller */
1798 static pa_cvolume *cvolume_remap_minimal_impact(
1800 const pa_cvolume *template,
1801 const pa_channel_map *from,
1802 const pa_channel_map *to) {
1807 pa_assert(template);
1810 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1811 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1813 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1814 * mapping from sink input to sink volumes:
1816 * If template is a possible remapping from v it is used instead
1817 * of remapping anew.
1819 * If the channel maps don't match we set an all-channel volume on
1820 * the sink to ensure that changing a volume on one stream has no
1821 * effect that cannot be compensated for in another stream that
1822 * does not have the same channel map as the sink. */
1824 if (pa_channel_map_equal(from, to))
1828 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1833 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1837 /* Called from main thread. Only called for the root sink in volume sharing
1838 * cases, except for internal recursive calls. */
1839 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1843 pa_sink_assert_ref(s);
1844 pa_assert(max_volume);
1845 pa_assert(channel_map);
1846 pa_assert(pa_sink_flat_volume_enabled(s));
1848 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1849 pa_cvolume remapped;
1851 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1852 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1853 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1855 /* Ignore this input. The origin sink uses volume sharing, so this
1856 * input's volume will be set to be equal to the root sink's real
1857 * volume. Obviously this input's current volume must not then
1858 * affect what the root sink's real volume will be. */
1862 remapped = i->volume;
1863 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1864 pa_cvolume_merge(max_volume, max_volume, &remapped);
1868 /* Called from main thread. Only called for the root sink in volume sharing
1869 * cases, except for internal recursive calls. */
1870 static bool has_inputs(pa_sink *s) {
1874 pa_sink_assert_ref(s);
1876 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1877 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1884 /* Called from main thread. Only called for the root sink in volume sharing
1885 * cases, except for internal recursive calls. */
1886 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1890 pa_sink_assert_ref(s);
1891 pa_assert(new_volume);
1892 pa_assert(channel_map);
1894 s->real_volume = *new_volume;
1895 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1897 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1898 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1899 if (pa_sink_flat_volume_enabled(s)) {
1900 pa_cvolume new_input_volume;
1902 /* Follow the root sink's real volume. */
1903 new_input_volume = *new_volume;
1904 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1905 pa_sink_input_set_volume_direct(i, &new_input_volume);
1906 compute_reference_ratio(i);
1909 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1910 update_real_volume(i->origin_sink, new_volume, channel_map);
1915 /* Called from main thread. Only called for the root sink in shared volume
1917 static void compute_real_volume(pa_sink *s) {
1918 pa_sink_assert_ref(s);
1919 pa_assert_ctl_context();
1920 pa_assert(PA_SINK_IS_LINKED(s->state));
1921 pa_assert(pa_sink_flat_volume_enabled(s));
1922 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1924 /* This determines the maximum volume of all streams and sets
1925 * s->real_volume accordingly. */
1927 if (!has_inputs(s)) {
1928 /* In the special case that we have no sink inputs we leave the
1929 * volume unmodified. */
1930 update_real_volume(s, &s->reference_volume, &s->channel_map);
1934 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1936 /* First let's determine the new maximum volume of all inputs
1937 * connected to this sink */
1938 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1939 update_real_volume(s, &s->real_volume, &s->channel_map);
1941 /* Then, let's update the real ratios/soft volumes of all inputs
1942 * connected to this sink */
1943 compute_real_ratios(s);
1946 /* Called from main thread. Only called for the root sink in shared volume
1947 * cases, except for internal recursive calls. */
1948 static void propagate_reference_volume(pa_sink *s) {
1952 pa_sink_assert_ref(s);
1953 pa_assert_ctl_context();
1954 pa_assert(PA_SINK_IS_LINKED(s->state));
1955 pa_assert(pa_sink_flat_volume_enabled(s));
1957 /* This is called whenever the sink volume changes that is not
1958 * caused by a sink input volume change. We need to fix up the
1959 * sink input volumes accordingly */
1961 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1962 pa_cvolume new_volume;
1964 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1965 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1966 propagate_reference_volume(i->origin_sink);
1968 /* Since the origin sink uses volume sharing, this input's volume
1969 * needs to be updated to match the root sink's real volume, but
1970 * that will be done later in update_real_volume(). */
1974 /* This basically calculates:
1976 * i->volume := s->reference_volume * i->reference_ratio */
1978 new_volume = s->reference_volume;
1979 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
1980 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
1981 pa_sink_input_set_volume_direct(i, &new_volume);
1985 /* Called from main thread. Only called for the root sink in volume sharing
1986 * cases, except for internal recursive calls. The return value indicates
1987 * whether any reference volume actually changed. */
1988 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
1990 bool reference_volume_changed;
1994 pa_sink_assert_ref(s);
1995 pa_assert(PA_SINK_IS_LINKED(s->state));
1997 pa_assert(channel_map);
1998 pa_assert(pa_cvolume_valid(v));
2001 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2003 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2004 pa_sink_set_reference_volume_direct(s, &volume);
2006 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2008 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2009 /* If the root sink's volume doesn't change, then there can't be any
2010 * changes in the other sinks in the sink tree either.
2012 * It's probably theoretically possible that even if the root sink's
2013 * volume changes slightly, some filter sink doesn't change its volume
2014 * due to rounding errors. If that happens, we still want to propagate
2015 * the changed root sink volume to the sinks connected to the
2016 * intermediate sink that didn't change its volume. This theoretical
2017 * possibility is the reason why we have that !(s->flags &
2018 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2019 * notice even if we returned here false always if
2020 * reference_volume_changed is false. */
2023 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2024 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2025 && PA_SINK_IS_LINKED(i->origin_sink->state))
2026 update_reference_volume(i->origin_sink, v, channel_map, false);
2032 /* Called from main thread */
2033 void pa_sink_set_volume(
2035 const pa_cvolume *volume,
2039 pa_cvolume new_reference_volume;
2042 pa_sink_assert_ref(s);
2043 pa_assert_ctl_context();
2044 pa_assert(PA_SINK_IS_LINKED(s->state));
2045 pa_assert(!volume || pa_cvolume_valid(volume));
2046 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2047 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2049 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2050 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2051 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2052 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2056 /* In case of volume sharing, the volume is set for the root sink first,
2057 * from which it's then propagated to the sharing sinks. */
2058 root_sink = pa_sink_get_master(s);
2060 if (PA_UNLIKELY(!root_sink))
2063 /* As a special exception we accept mono volumes on all sinks --
2064 * even on those with more complex channel maps */
2067 if (pa_cvolume_compatible(volume, &s->sample_spec))
2068 new_reference_volume = *volume;
2070 new_reference_volume = s->reference_volume;
2071 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2074 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2076 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2077 if (pa_sink_flat_volume_enabled(root_sink)) {
2078 /* OK, propagate this volume change back to the inputs */
2079 propagate_reference_volume(root_sink);
2081 /* And now recalculate the real volume */
2082 compute_real_volume(root_sink);
2084 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2088 /* If volume is NULL we synchronize the sink's real and
2089 * reference volumes with the stream volumes. */
2091 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2093 /* Ok, let's determine the new real volume */
2094 compute_real_volume(root_sink);
2096 /* Let's 'push' the reference volume if necessary */
2097 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2098 /* If the sink and its root don't have the same number of channels, we need to remap */
2099 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2100 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2101 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2103 /* Now that the reference volume is updated, we can update the streams'
2104 * reference ratios. */
2105 compute_reference_ratios(root_sink);
2108 if (root_sink->set_volume) {
2109 /* If we have a function set_volume(), then we do not apply a
2110 * soft volume by default. However, set_volume() is free to
2111 * apply one to root_sink->soft_volume */
2113 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2114 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2115 root_sink->set_volume(root_sink);
2118 /* If we have no function set_volume(), then the soft volume
2119 * becomes the real volume */
2120 root_sink->soft_volume = root_sink->real_volume;
2122 /* This tells the sink that soft volume and/or real volume changed */
2124 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2127 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2128 * Only to be called by sink implementor */
2129 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2131 pa_sink_assert_ref(s);
2132 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2134 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2135 pa_sink_assert_io_context(s);
2137 pa_assert_ctl_context();
2140 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2142 s->soft_volume = *volume;
2144 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2145 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2147 s->thread_info.soft_volume = s->soft_volume;
2150 /* Called from the main thread. Only called for the root sink in volume sharing
2151 * cases, except for internal recursive calls. */
2152 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2156 pa_sink_assert_ref(s);
2157 pa_assert(old_real_volume);
2158 pa_assert_ctl_context();
2159 pa_assert(PA_SINK_IS_LINKED(s->state));
2161 /* This is called when the hardware's real volume changes due to
2162 * some external event. We copy the real volume into our
2163 * reference volume and then rebuild the stream volumes based on
2164 * i->real_ratio which should stay fixed. */
2166 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2167 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2170 /* 1. Make the real volume the reference volume */
2171 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2174 if (pa_sink_flat_volume_enabled(s)) {
2176 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2177 pa_cvolume new_volume;
2179 /* 2. Since the sink's reference and real volumes are equal
2180 * now our ratios should be too. */
2181 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2183 /* 3. Recalculate the new stream reference volume based on the
2184 * reference ratio and the sink's reference volume.
2186 * This basically calculates:
2188 * i->volume = s->reference_volume * i->reference_ratio
2190 * This is identical to propagate_reference_volume() */
2191 new_volume = s->reference_volume;
2192 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2193 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2194 pa_sink_input_set_volume_direct(i, &new_volume);
2196 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2197 && PA_SINK_IS_LINKED(i->origin_sink->state))
2198 propagate_real_volume(i->origin_sink, old_real_volume);
2202 /* Something got changed in the hardware. It probably makes sense
2203 * to save changed hw settings given that hw volume changes not
2204 * triggered by PA are almost certainly done by the user. */
2205 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2206 s->save_volume = true;
2209 /* Called from io thread */
2210 void pa_sink_update_volume_and_mute(pa_sink *s) {
2212 pa_sink_assert_io_context(s);
2214 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2217 /* Called from main thread */
2218 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2219 pa_sink_assert_ref(s);
2220 pa_assert_ctl_context();
2221 pa_assert(PA_SINK_IS_LINKED(s->state));
2223 if (s->refresh_volume || force_refresh) {
2224 struct pa_cvolume old_real_volume;
2226 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2228 old_real_volume = s->real_volume;
2230 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2233 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2235 update_real_volume(s, &s->real_volume, &s->channel_map);
2236 propagate_real_volume(s, &old_real_volume);
2239 return &s->reference_volume;
2242 /* Called from main thread. In volume sharing cases, only the root sink may
2244 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2245 pa_cvolume old_real_volume;
2247 pa_sink_assert_ref(s);
2248 pa_assert_ctl_context();
2249 pa_assert(PA_SINK_IS_LINKED(s->state));
2250 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2252 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2254 old_real_volume = s->real_volume;
2255 update_real_volume(s, new_real_volume, &s->channel_map);
2256 propagate_real_volume(s, &old_real_volume);
2259 /* Called from main thread */
2260 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2263 pa_sink_assert_ref(s);
2264 pa_assert_ctl_context();
2266 old_muted = s->muted;
2268 if (mute == old_muted) {
2269 s->save_muted |= save;
2274 s->save_muted = save;
2276 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2277 s->set_mute_in_progress = true;
2279 s->set_mute_in_progress = false;
2282 if (!PA_SINK_IS_LINKED(s->state))
2285 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2286 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2287 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2288 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2291 /* Called from main thread */
2292 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2294 pa_sink_assert_ref(s);
2295 pa_assert_ctl_context();
2296 pa_assert(PA_SINK_IS_LINKED(s->state));
2298 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2301 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2302 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2303 pa_sink_mute_changed(s, mute);
2305 if (s->get_mute(s, &mute) >= 0)
2306 pa_sink_mute_changed(s, mute);
2313 /* Called from main thread */
2314 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2315 pa_sink_assert_ref(s);
2316 pa_assert_ctl_context();
2317 pa_assert(PA_SINK_IS_LINKED(s->state));
2319 if (s->set_mute_in_progress)
2322 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2323 * but we must have this here also, because the save parameter of
2324 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2325 * the mute state when it shouldn't be saved). */
2326 if (new_muted == s->muted)
2329 pa_sink_set_mute(s, new_muted, true);
2332 /* Called from main thread */
2333 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2334 pa_sink_assert_ref(s);
2335 pa_assert_ctl_context();
2338 pa_proplist_update(s->proplist, mode, p);
2340 if (PA_SINK_IS_LINKED(s->state)) {
2341 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2342 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2348 /* Called from main thread */
2349 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2350 void pa_sink_set_description(pa_sink *s, const char *description) {
2352 pa_sink_assert_ref(s);
2353 pa_assert_ctl_context();
2355 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2358 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2360 if (old && description && pa_streq(old, description))
2364 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2366 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2368 if (s->monitor_source) {
2371 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2372 pa_source_set_description(s->monitor_source, n);
2376 if (PA_SINK_IS_LINKED(s->state)) {
2377 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2378 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2382 /* Called from main thread */
2383 unsigned pa_sink_linked_by(pa_sink *s) {
2386 pa_sink_assert_ref(s);
2387 pa_assert_ctl_context();
2388 pa_assert(PA_SINK_IS_LINKED(s->state));
2390 ret = pa_idxset_size(s->inputs);
2392 /* We add in the number of streams connected to us here. Please
2393 * note the asymmetry to pa_sink_used_by()! */
2395 if (s->monitor_source)
2396 ret += pa_source_linked_by(s->monitor_source);
2401 /* Called from main thread */
2402 unsigned pa_sink_used_by(pa_sink *s) {
2405 pa_sink_assert_ref(s);
2406 pa_assert_ctl_context();
2407 pa_assert(PA_SINK_IS_LINKED(s->state));
2409 ret = pa_idxset_size(s->inputs);
2410 pa_assert(ret >= s->n_corked);
2412 /* Streams connected to our monitor source do not matter for
2413 * pa_sink_used_by()!.*/
2415 return ret - s->n_corked;
2418 /* Called from main thread */
2419 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2424 pa_sink_assert_ref(s);
2425 pa_assert_ctl_context();
2427 if (!PA_SINK_IS_LINKED(s->state))
2432 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2433 pa_sink_input_state_t st;
2435 if (i == ignore_input)
2438 st = pa_sink_input_get_state(i);
2440 /* We do not assert here. It is perfectly valid for a sink input to
2441 * be in the INIT state (i.e. created, marked done but not yet put)
2442 * and we should not care if it's unlinked as it won't contribute
2443 * towards our busy status.
2445 if (!PA_SINK_INPUT_IS_LINKED(st))
2448 if (st == PA_SINK_INPUT_CORKED)
2451 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2457 if (s->monitor_source)
2458 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2463 /* Called from the IO thread */
2464 static void sync_input_volumes_within_thread(pa_sink *s) {
2468 pa_sink_assert_ref(s);
2469 pa_sink_assert_io_context(s);
2471 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2472 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2475 i->thread_info.soft_volume = i->soft_volume;
2476 pa_sink_input_request_rewind(i, 0, true, false, false);
2480 /* Called from the IO thread. Only called for the root sink in volume sharing
2481 * cases, except for internal recursive calls. */
2482 static void set_shared_volume_within_thread(pa_sink *s) {
2483 pa_sink_input *i = NULL;
2486 pa_sink_assert_ref(s);
2488 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2490 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2491 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2492 set_shared_volume_within_thread(i->origin_sink);
2496 /* Called from IO thread, except when it is not */
2497 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2498 pa_sink *s = PA_SINK(o);
2499 pa_sink_assert_ref(s);
2501 switch ((pa_sink_message_t) code) {
2503 case PA_SINK_MESSAGE_ADD_INPUT: {
2504 pa_sink_input *i = PA_SINK_INPUT(userdata);
2506 /* If you change anything here, make sure to change the
2507 * sink input handling a few lines down at
2508 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2510 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2512 /* Since the caller sleeps in pa_sink_input_put(), we can
2513 * safely access data outside of thread_info even though
2516 if ((i->thread_info.sync_prev = i->sync_prev)) {
2517 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2518 pa_assert(i->sync_prev->sync_next == i);
2519 i->thread_info.sync_prev->thread_info.sync_next = i;
2522 if ((i->thread_info.sync_next = i->sync_next)) {
2523 pa_assert(i->sink == i->thread_info.sync_next->sink);
2524 pa_assert(i->sync_next->sync_prev == i);
2525 i->thread_info.sync_next->thread_info.sync_prev = i;
2528 pa_sink_input_attach(i);
2530 pa_sink_input_set_state_within_thread(i, i->state);
2532 /* The requested latency of the sink input needs to be fixed up and
2533 * then configured on the sink. If this causes the sink latency to
2534 * go down, the sink implementor is responsible for doing a rewind
2535 * in the update_requested_latency() callback to ensure that the
2536 * sink buffer doesn't contain more data than what the new latency
2539 * XXX: Does it really make sense to push this responsibility to
2540 * the sink implementors? Wouldn't it be better to do it once in
2541 * the core than many times in the modules? */
2543 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2544 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2546 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2547 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2549 /* We don't rewind here automatically. This is left to the
2550 * sink input implementor because some sink inputs need a
2551 * slow start, i.e. need some time to buffer client
2552 * samples before beginning streaming.
2554 * XXX: Does it really make sense to push this functionality to
2555 * the sink implementors? Wouldn't it be better to do it once in
2556 * the core than many times in the modules? */
2558 /* In flat volume mode we need to update the volume as
2560 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2563 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2564 pa_sink_input *i = PA_SINK_INPUT(userdata);
2566 /* If you change anything here, make sure to change the
2567 * sink input handling a few lines down at
2568 * PA_SINK_MESSAGE_START_MOVE, too. */
2570 pa_sink_input_detach(i);
2572 pa_sink_input_set_state_within_thread(i, i->state);
2574 /* Since the caller sleeps in pa_sink_input_unlink(),
2575 * we can safely access data outside of thread_info even
2576 * though it is mutable */
2578 pa_assert(!i->sync_prev);
2579 pa_assert(!i->sync_next);
2581 if (i->thread_info.sync_prev) {
2582 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2583 i->thread_info.sync_prev = NULL;
2586 if (i->thread_info.sync_next) {
2587 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2588 i->thread_info.sync_next = NULL;
2591 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2592 pa_sink_invalidate_requested_latency(s, true);
2593 pa_sink_request_rewind(s, (size_t) -1);
2595 /* In flat volume mode we need to update the volume as
2597 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2600 case PA_SINK_MESSAGE_START_MOVE: {
2601 pa_sink_input *i = PA_SINK_INPUT(userdata);
2603 /* We don't support moving synchronized streams. */
2604 pa_assert(!i->sync_prev);
2605 pa_assert(!i->sync_next);
2606 pa_assert(!i->thread_info.sync_next);
2607 pa_assert(!i->thread_info.sync_prev);
2609 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2611 size_t sink_nbytes, total_nbytes;
2613 /* The old sink probably has some audio from this
2614 * stream in its buffer. We want to "take it back" as
2615 * much as possible and play it to the new sink. We
2616 * don't know at this point how much the old sink can
2617 * rewind. We have to pick something, and that
2618 * something is the full latency of the old sink here.
2619 * So we rewind the stream buffer by the sink latency
2620 * amount, which may be more than what we should
2621 * rewind. This can result in a chunk of audio being
2622 * played both to the old sink and the new sink.
2624 * FIXME: Fix this code so that we don't have to make
2625 * guesses about how much the sink will actually be
2626 * able to rewind. If someone comes up with a solution
2627 * for this, something to note is that the part of the
2628 * latency that the old sink couldn't rewind should
2629 * ideally be compensated after the stream has moved
2630 * to the new sink by adding silence. The new sink
2631 * most likely can't start playing the moved stream
2632 * immediately, and that gap should be removed from
2633 * the "compensation silence" (at least at the time of
2634 * writing this, the move finish code will actually
2635 * already take care of dropping the new sink's
2636 * unrewindable latency, so taking into account the
2637 * unrewindable latency of the old sink is the only
2640 * The render_memblockq contents are discarded,
2641 * because when the sink changes, the format of the
2642 * audio stored in the render_memblockq may change
2643 * too, making the stored audio invalid. FIXME:
2644 * However, the read and write indices are moved back
2645 * the same amount, so if they are not the same now,
2646 * they won't be the same after the rewind either. If
2647 * the write index of the render_memblockq is ahead of
2648 * the read index, then the render_memblockq will feed
2649 * the new sink some silence first, which it shouldn't
2650 * do. The write index should be flushed to be the
2651 * same as the read index. */
2653 /* Get the latency of the sink */
2654 usec = pa_sink_get_latency_within_thread(s, false);
2655 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2656 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2658 if (total_nbytes > 0) {
2659 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2660 i->thread_info.rewrite_flush = true;
2661 pa_sink_input_process_rewind(i, sink_nbytes);
2665 pa_sink_input_detach(i);
2667 /* Let's remove the sink input ...*/
2668 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2670 pa_sink_invalidate_requested_latency(s, true);
2672 pa_log_debug("Requesting rewind due to started move");
2673 pa_sink_request_rewind(s, (size_t) -1);
2675 /* In flat volume mode we need to update the volume as
2677 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2680 case PA_SINK_MESSAGE_FINISH_MOVE: {
2681 pa_sink_input *i = PA_SINK_INPUT(userdata);
2683 /* We don't support moving synchronized streams. */
2684 pa_assert(!i->sync_prev);
2685 pa_assert(!i->sync_next);
2686 pa_assert(!i->thread_info.sync_next);
2687 pa_assert(!i->thread_info.sync_prev);
2689 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2691 pa_sink_input_attach(i);
2693 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2697 /* In the ideal case the new sink would start playing
2698 * the stream immediately. That requires the sink to
2699 * be able to rewind all of its latency, which usually
2700 * isn't possible, so there will probably be some gap
2701 * before the moved stream becomes audible. We then
2702 * have two possibilities: 1) start playing the stream
2703 * from where it is now, or 2) drop the unrewindable
2704 * latency of the sink from the stream. With option 1
2705 * we won't lose any audio but the stream will have a
2706 * pause. With option 2 we may lose some audio but the
2707 * stream time will be somewhat in sync with the wall
2708 * clock. Lennart seems to have chosen option 2 (one
2709 * of the reasons might have been that option 1 is
2710 * actually much harder to implement), so we drop the
2711 * latency of the new sink from the moved stream and
2712 * hope that the sink will undo most of that in the
2715 /* Get the latency of the sink */
2716 usec = pa_sink_get_latency_within_thread(s, false);
2717 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2720 pa_sink_input_drop(i, nbytes);
2722 pa_log_debug("Requesting rewind due to finished move");
2723 pa_sink_request_rewind(s, nbytes);
2726 /* Updating the requested sink latency has to be done
2727 * after the sink rewind request, not before, because
2728 * otherwise the sink may limit the rewind amount
2731 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2732 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2734 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2735 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2737 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2740 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2741 pa_sink *root_sink = pa_sink_get_master(s);
2743 if (PA_LIKELY(root_sink))
2744 set_shared_volume_within_thread(root_sink);
2749 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2751 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2753 pa_sink_volume_change_push(s);
2755 /* Fall through ... */
2757 case PA_SINK_MESSAGE_SET_VOLUME:
2759 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2760 s->thread_info.soft_volume = s->soft_volume;
2761 pa_sink_request_rewind(s, (size_t) -1);
2764 /* Fall through ... */
2766 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2767 sync_input_volumes_within_thread(s);
2770 case PA_SINK_MESSAGE_GET_VOLUME:
2772 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2774 pa_sink_volume_change_flush(s);
2775 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2778 /* In case sink implementor reset SW volume. */
2779 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2780 s->thread_info.soft_volume = s->soft_volume;
2781 pa_sink_request_rewind(s, (size_t) -1);
2786 case PA_SINK_MESSAGE_SET_MUTE:
2788 if (s->thread_info.soft_muted != s->muted) {
2789 s->thread_info.soft_muted = s->muted;
2790 pa_sink_request_rewind(s, (size_t) -1);
2793 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2798 case PA_SINK_MESSAGE_GET_MUTE:
2800 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2801 return s->get_mute(s, userdata);
2805 case PA_SINK_MESSAGE_SET_STATE: {
2807 bool suspend_change =
2808 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2809 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2811 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2813 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2814 s->thread_info.rewind_nbytes = 0;
2815 s->thread_info.rewind_requested = false;
2818 if (suspend_change) {
2822 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2823 if (i->suspend_within_thread)
2824 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2830 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2832 pa_usec_t *usec = userdata;
2833 *usec = pa_sink_get_requested_latency_within_thread(s);
2835 /* Yes, that's right, the IO thread will see -1 when no
2836 * explicit requested latency is configured, the main
2837 * thread will see max_latency */
2838 if (*usec == (pa_usec_t) -1)
2839 *usec = s->thread_info.max_latency;
2844 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2845 pa_usec_t *r = userdata;
2847 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2852 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2853 pa_usec_t *r = userdata;
2855 r[0] = s->thread_info.min_latency;
2856 r[1] = s->thread_info.max_latency;
2861 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2863 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2866 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2868 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2871 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2873 *((size_t*) userdata) = s->thread_info.max_rewind;
2876 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2878 *((size_t*) userdata) = s->thread_info.max_request;
2881 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2883 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2886 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2888 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2891 case PA_SINK_MESSAGE_SET_PORT:
2893 pa_assert(userdata);
2895 struct sink_message_set_port *msg_data = userdata;
2896 msg_data->ret = s->set_port(s, msg_data->port);
2900 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2901 /* This message is sent from IO-thread and handled in main thread. */
2902 pa_assert_ctl_context();
2904 /* Make sure we're not messing with main thread when no longer linked */
2905 if (!PA_SINK_IS_LINKED(s->state))
2908 pa_sink_get_volume(s, true);
2909 pa_sink_get_mute(s, true);
2912 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2913 s->thread_info.port_latency_offset = offset;
2916 case PA_SINK_MESSAGE_GET_LATENCY:
2917 case PA_SINK_MESSAGE_MAX:
2924 /* Called from main thread */
2925 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2930 pa_core_assert_ref(c);
2931 pa_assert_ctl_context();
2932 pa_assert(cause != 0);
2934 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2937 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2944 /* Called from IO thread */
2945 void pa_sink_detach_within_thread(pa_sink *s) {
2949 pa_sink_assert_ref(s);
2950 pa_sink_assert_io_context(s);
2951 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2953 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2954 pa_sink_input_detach(i);
2956 if (s->monitor_source)
2957 pa_source_detach_within_thread(s->monitor_source);
2960 /* Called from IO thread */
2961 void pa_sink_attach_within_thread(pa_sink *s) {
2965 pa_sink_assert_ref(s);
2966 pa_sink_assert_io_context(s);
2967 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2969 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2970 pa_sink_input_attach(i);
2972 if (s->monitor_source)
2973 pa_source_attach_within_thread(s->monitor_source);
2976 /* Called from IO thread */
2977 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2978 pa_sink_assert_ref(s);
2979 pa_sink_assert_io_context(s);
2980 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2982 if (nbytes == (size_t) -1)
2983 nbytes = s->thread_info.max_rewind;
2985 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2987 if (s->thread_info.rewind_requested &&
2988 nbytes <= s->thread_info.rewind_nbytes)
2991 s->thread_info.rewind_nbytes = nbytes;
2992 s->thread_info.rewind_requested = true;
2994 if (s->request_rewind)
2995 s->request_rewind(s);
2998 /* Called from IO thread */
2999 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3000 pa_usec_t result = (pa_usec_t) -1;
3003 pa_usec_t monitor_latency;
3005 pa_sink_assert_ref(s);
3006 pa_sink_assert_io_context(s);
3008 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3009 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3011 if (s->thread_info.requested_latency_valid)
3012 return s->thread_info.requested_latency;
3014 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3015 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3016 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3017 result = i->thread_info.requested_sink_latency;
3019 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3021 if (monitor_latency != (pa_usec_t) -1 &&
3022 (result == (pa_usec_t) -1 || result > monitor_latency))
3023 result = monitor_latency;
3025 if (result != (pa_usec_t) -1)
3026 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3028 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3029 /* Only cache if properly initialized */
3030 s->thread_info.requested_latency = result;
3031 s->thread_info.requested_latency_valid = true;
3037 /* Called from main thread */
3038 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3041 pa_sink_assert_ref(s);
3042 pa_assert_ctl_context();
3043 pa_assert(PA_SINK_IS_LINKED(s->state));
3045 if (s->state == PA_SINK_SUSPENDED)
3048 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3053 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3054 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3058 pa_sink_assert_ref(s);
3059 pa_sink_assert_io_context(s);
3061 if (max_rewind == s->thread_info.max_rewind)
3064 s->thread_info.max_rewind = max_rewind;
3066 if (PA_SINK_IS_LINKED(s->thread_info.state))
3067 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3068 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3070 if (s->monitor_source)
3071 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3074 /* Called from main thread */
3075 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3076 pa_sink_assert_ref(s);
3077 pa_assert_ctl_context();
3079 if (PA_SINK_IS_LINKED(s->state))
3080 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3082 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3085 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3086 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3089 pa_sink_assert_ref(s);
3090 pa_sink_assert_io_context(s);
3092 if (max_request == s->thread_info.max_request)
3095 s->thread_info.max_request = max_request;
3097 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3100 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3101 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3105 /* Called from main thread */
3106 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3107 pa_sink_assert_ref(s);
3108 pa_assert_ctl_context();
3110 if (PA_SINK_IS_LINKED(s->state))
3111 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3113 pa_sink_set_max_request_within_thread(s, max_request);
3116 /* Called from IO thread */
3117 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3121 pa_sink_assert_ref(s);
3122 pa_sink_assert_io_context(s);
3124 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3125 s->thread_info.requested_latency_valid = false;
3129 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3131 if (s->update_requested_latency)
3132 s->update_requested_latency(s);
3134 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3135 if (i->update_sink_requested_latency)
3136 i->update_sink_requested_latency(i);
3140 /* Called from main thread */
3141 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3142 pa_sink_assert_ref(s);
3143 pa_assert_ctl_context();
3145 /* min_latency == 0: no limit
3146 * min_latency anything else: specified limit
3148 * Similar for max_latency */
3150 if (min_latency < ABSOLUTE_MIN_LATENCY)
3151 min_latency = ABSOLUTE_MIN_LATENCY;
3153 if (max_latency <= 0 ||
3154 max_latency > ABSOLUTE_MAX_LATENCY)
3155 max_latency = ABSOLUTE_MAX_LATENCY;
3157 pa_assert(min_latency <= max_latency);
3159 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3160 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3161 max_latency == ABSOLUTE_MAX_LATENCY) ||
3162 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3164 if (PA_SINK_IS_LINKED(s->state)) {
3170 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3172 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3175 /* Called from main thread */
3176 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3177 pa_sink_assert_ref(s);
3178 pa_assert_ctl_context();
3179 pa_assert(min_latency);
3180 pa_assert(max_latency);
3182 if (PA_SINK_IS_LINKED(s->state)) {
3183 pa_usec_t r[2] = { 0, 0 };
3185 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3187 *min_latency = r[0];
3188 *max_latency = r[1];
3190 *min_latency = s->thread_info.min_latency;
3191 *max_latency = s->thread_info.max_latency;
3195 /* Called from IO thread */
3196 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3197 pa_sink_assert_ref(s);
3198 pa_sink_assert_io_context(s);
3200 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3201 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3202 pa_assert(min_latency <= max_latency);
3204 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3205 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3206 max_latency == ABSOLUTE_MAX_LATENCY) ||
3207 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3209 if (s->thread_info.min_latency == min_latency &&
3210 s->thread_info.max_latency == max_latency)
3213 s->thread_info.min_latency = min_latency;
3214 s->thread_info.max_latency = max_latency;
3216 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3220 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3221 if (i->update_sink_latency_range)
3222 i->update_sink_latency_range(i);
3225 pa_sink_invalidate_requested_latency(s, false);
3227 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3230 /* Called from main thread */
3231 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3232 pa_sink_assert_ref(s);
3233 pa_assert_ctl_context();
3235 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3236 pa_assert(latency == 0);
3240 if (latency < ABSOLUTE_MIN_LATENCY)
3241 latency = ABSOLUTE_MIN_LATENCY;
3243 if (latency > ABSOLUTE_MAX_LATENCY)
3244 latency = ABSOLUTE_MAX_LATENCY;
3246 if (PA_SINK_IS_LINKED(s->state))
3247 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3249 s->thread_info.fixed_latency = latency;
3251 pa_source_set_fixed_latency(s->monitor_source, latency);
3254 /* Called from main thread */
3255 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3258 pa_sink_assert_ref(s);
3259 pa_assert_ctl_context();
3261 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3264 if (PA_SINK_IS_LINKED(s->state))
3265 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3267 latency = s->thread_info.fixed_latency;
3272 /* Called from IO thread */
3273 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3274 pa_sink_assert_ref(s);
3275 pa_sink_assert_io_context(s);
3277 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3278 pa_assert(latency == 0);
3279 s->thread_info.fixed_latency = 0;
3281 if (s->monitor_source)
3282 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3287 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3288 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3290 if (s->thread_info.fixed_latency == latency)
3293 s->thread_info.fixed_latency = latency;
3295 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3299 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3300 if (i->update_sink_fixed_latency)
3301 i->update_sink_fixed_latency(i);
3304 pa_sink_invalidate_requested_latency(s, false);
3306 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3309 /* Called from main context */
3310 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3311 pa_sink_assert_ref(s);
3313 s->port_latency_offset = offset;
3315 if (PA_SINK_IS_LINKED(s->state))
3316 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3318 s->thread_info.port_latency_offset = offset;
3320 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3323 /* Called from main context */
3324 size_t pa_sink_get_max_rewind(pa_sink *s) {
3326 pa_assert_ctl_context();
3327 pa_sink_assert_ref(s);
3329 if (!PA_SINK_IS_LINKED(s->state))
3330 return s->thread_info.max_rewind;
3332 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3337 /* Called from main context */
3338 size_t pa_sink_get_max_request(pa_sink *s) {
3340 pa_sink_assert_ref(s);
3341 pa_assert_ctl_context();
3343 if (!PA_SINK_IS_LINKED(s->state))
3344 return s->thread_info.max_request;
3346 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3351 /* Called from main context */
3352 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3353 pa_device_port *port;
3356 pa_sink_assert_ref(s);
3357 pa_assert_ctl_context();
3360 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3361 return -PA_ERR_NOTIMPLEMENTED;
3365 return -PA_ERR_NOENTITY;
3367 if (!(port = pa_hashmap_get(s->ports, name)))
3368 return -PA_ERR_NOENTITY;
3370 if (s->active_port == port) {
3371 s->save_port = s->save_port || save;
3375 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3376 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3377 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3381 ret = s->set_port(s, port);
3384 return -PA_ERR_NOENTITY;
3386 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3388 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3390 s->active_port = port;
3391 s->save_port = save;
3393 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3395 /* The active port affects the default sink selection. */
3396 pa_core_update_default_sink(s->core);
3398 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3403 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3404 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3408 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3411 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3413 if (pa_streq(ff, "microphone"))
3414 t = "audio-input-microphone";
3415 else if (pa_streq(ff, "webcam"))
3417 else if (pa_streq(ff, "computer"))
3419 else if (pa_streq(ff, "handset"))
3421 else if (pa_streq(ff, "portable"))
3422 t = "multimedia-player";
3423 else if (pa_streq(ff, "tv"))
3424 t = "video-display";
3427 * The following icons are not part of the icon naming spec,
3428 * because Rodney Dawes sucks as the maintainer of that spec.
3430 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3432 else if (pa_streq(ff, "headset"))
3433 t = "audio-headset";
3434 else if (pa_streq(ff, "headphone"))
3435 t = "audio-headphones";
3436 else if (pa_streq(ff, "speaker"))
3437 t = "audio-speakers";
3438 else if (pa_streq(ff, "hands-free"))
3439 t = "audio-handsfree";
3443 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3444 if (pa_streq(c, "modem"))
3451 t = "audio-input-microphone";
3454 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3455 if (strstr(profile, "analog"))
3457 else if (strstr(profile, "iec958"))
3459 else if (strstr(profile, "hdmi"))
3463 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3465 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3470 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3471 const char *s, *d = NULL, *k;
3474 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3478 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3482 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3483 if (pa_streq(s, "internal"))
3484 d = _("Built-in Audio");
3487 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3488 if (pa_streq(s, "modem"))
3492 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3497 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3500 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3502 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3507 bool pa_device_init_intended_roles(pa_proplist *p) {
3511 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3514 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3515 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3516 || pa_streq(s, "headset")) {
3517 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3524 unsigned pa_device_init_priority(pa_proplist *p) {
3526 unsigned priority = 0;
3530 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3532 if (pa_streq(s, "sound"))
3534 else if (!pa_streq(s, "modem"))
3538 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3540 if (pa_streq(s, "headphone"))
3542 else if (pa_streq(s, "hifi"))
3544 else if (pa_streq(s, "speaker"))
3546 else if (pa_streq(s, "portable"))
3550 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3552 if (pa_streq(s, "bluetooth"))
3554 else if (pa_streq(s, "usb"))
3556 else if (pa_streq(s, "pci"))
3560 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3562 if (pa_startswith(s, "analog-"))
3564 else if (pa_startswith(s, "iec958-"))
3571 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3573 /* Called from the IO thread. */
3574 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3575 pa_sink_volume_change *c;
3576 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3577 c = pa_xnew(pa_sink_volume_change, 1);
3579 PA_LLIST_INIT(pa_sink_volume_change, c);
3581 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3585 /* Called from the IO thread. */
3586 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3588 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3592 /* Called from the IO thread. */
3593 void pa_sink_volume_change_push(pa_sink *s) {
3594 pa_sink_volume_change *c = NULL;
3595 pa_sink_volume_change *nc = NULL;
3596 pa_sink_volume_change *pc = NULL;
3597 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3599 const char *direction = NULL;
3602 nc = pa_sink_volume_change_new(s);
3604 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3605 * Adding one more volume for HW would get us rid of this, but I am trying
3606 * to survive with the ones we already have. */
3607 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3609 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3610 pa_log_debug("Volume not changing");
3611 pa_sink_volume_change_free(nc);
3615 nc->at = pa_sink_get_latency_within_thread(s, false);
3616 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3618 if (s->thread_info.volume_changes_tail) {
3619 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3620 /* If volume is going up let's do it a bit late. If it is going
3621 * down let's do it a bit early. */
3622 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3623 if (nc->at + safety_margin > c->at) {
3624 nc->at += safety_margin;
3629 else if (nc->at - safety_margin > c->at) {
3630 nc->at -= safety_margin;
3638 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3639 nc->at += safety_margin;
3642 nc->at -= safety_margin;
3645 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3648 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3651 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3653 /* We can ignore volume events that came earlier but should happen later than this. */
3654 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3655 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3656 pa_sink_volume_change_free(c);
3659 s->thread_info.volume_changes_tail = nc;
3662 /* Called from the IO thread. */
3663 static void pa_sink_volume_change_flush(pa_sink *s) {
3664 pa_sink_volume_change *c = s->thread_info.volume_changes;
3666 s->thread_info.volume_changes = NULL;
3667 s->thread_info.volume_changes_tail = NULL;
3669 pa_sink_volume_change *next = c->next;
3670 pa_sink_volume_change_free(c);
3675 /* Called from the IO thread. */
3676 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3682 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3688 pa_assert(s->write_volume);
3690 now = pa_rtclock_now();
3692 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3693 pa_sink_volume_change *c = s->thread_info.volume_changes;
3694 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3695 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3696 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3698 s->thread_info.current_hw_volume = c->hw_volume;
3699 pa_sink_volume_change_free(c);
3705 if (s->thread_info.volume_changes) {
3707 *usec_to_next = s->thread_info.volume_changes->at - now;
3708 if (pa_log_ratelimit(PA_LOG_DEBUG))
3709 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3714 s->thread_info.volume_changes_tail = NULL;
3719 /* Called from the IO thread. */
3720 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3721 /* All the queued volume events later than current latency are shifted to happen earlier. */
3722 pa_sink_volume_change *c;
3723 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3724 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3725 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3727 pa_log_debug("latency = %lld", (long long) limit);
3728 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3730 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3731 pa_usec_t modified_limit = limit;
3732 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3733 modified_limit -= s->thread_info.volume_change_safety_margin;
3735 modified_limit += s->thread_info.volume_change_safety_margin;
3736 if (c->at > modified_limit) {
3738 if (c->at < modified_limit)
3739 c->at = modified_limit;
3741 prev_vol = pa_cvolume_avg(&c->hw_volume);
3743 pa_sink_volume_change_apply(s, NULL);
3746 /* Called from the main thread */
3747 /* Gets the list of formats supported by the sink. The members and idxset must
3748 * be freed by the caller. */
3749 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3754 if (s->get_formats) {
3755 /* Sink supports format query, all is good */
3756 ret = s->get_formats(s);
3758 /* Sink doesn't support format query, so assume it does PCM */
3759 pa_format_info *f = pa_format_info_new();
3760 f->encoding = PA_ENCODING_PCM;
3762 ret = pa_idxset_new(NULL, NULL);
3763 pa_idxset_put(ret, f, NULL);
3769 /* Called from the main thread */
3770 /* Allows an external source to set what formats a sink supports if the sink
3771 * permits this. The function makes a copy of the formats on success. */
3772 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3777 /* Sink supports setting formats -- let's give it a shot */
3778 return s->set_formats(s, formats);
3780 /* Sink doesn't support setting this -- bail out */
3784 /* Called from the main thread */
3785 /* Checks if the sink can accept this format */
3786 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3787 pa_idxset *formats = NULL;
3793 formats = pa_sink_get_formats(s);
3796 pa_format_info *finfo_device;
3799 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3800 if (pa_format_info_is_compatible(finfo_device, f)) {
3806 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3812 /* Called from the main thread */
3813 /* Calculates the intersection between formats supported by the sink and
3814 * in_formats, and returns these, in the order of the sink's formats. */
3815 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3816 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3817 pa_format_info *f_sink, *f_in;
3822 if (!in_formats || pa_idxset_isempty(in_formats))
3825 sink_formats = pa_sink_get_formats(s);
3827 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3828 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3829 if (pa_format_info_is_compatible(f_sink, f_in))
3830 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3836 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3841 /* Called from the main thread. */
3842 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3843 pa_cvolume old_volume;
3844 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3845 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3850 old_volume = s->reference_volume;
3852 if (pa_cvolume_equal(volume, &old_volume))
3855 s->reference_volume = *volume;
3856 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3857 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3858 s->flags & PA_SINK_DECIBEL_VOLUME),
3859 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3860 s->flags & PA_SINK_DECIBEL_VOLUME));
3862 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3863 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);