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 struct set_state_data {
73 pa_sink_state_t state;
74 pa_suspend_cause_t suspend_cause;
77 static void sink_free(pa_object *s);
79 static void pa_sink_volume_change_push(pa_sink *s);
80 static void pa_sink_volume_change_flush(pa_sink *s);
81 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes);
83 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
87 data->proplist = pa_proplist_new();
88 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);
93 void pa_sink_new_data_set_name(pa_sink_new_data *data, const char *name) {
97 data->name = pa_xstrdup(name);
100 void pa_sink_new_data_set_sample_spec(pa_sink_new_data *data, const pa_sample_spec *spec) {
103 if ((data->sample_spec_is_set = !!spec))
104 data->sample_spec = *spec;
107 void pa_sink_new_data_set_channel_map(pa_sink_new_data *data, const pa_channel_map *map) {
110 if ((data->channel_map_is_set = !!map))
111 data->channel_map = *map;
114 void pa_sink_new_data_set_alternate_sample_rate(pa_sink_new_data *data, const uint32_t alternate_sample_rate) {
117 data->alternate_sample_rate_is_set = true;
118 data->alternate_sample_rate = alternate_sample_rate;
121 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
124 if ((data->volume_is_set = !!volume))
125 data->volume = *volume;
128 void pa_sink_new_data_set_muted(pa_sink_new_data *data, bool mute) {
131 data->muted_is_set = true;
135 void pa_sink_new_data_set_port(pa_sink_new_data *data, const char *port) {
138 pa_xfree(data->active_port);
139 data->active_port = pa_xstrdup(port);
142 void pa_sink_new_data_done(pa_sink_new_data *data) {
145 pa_proplist_free(data->proplist);
148 pa_hashmap_free(data->ports);
150 pa_xfree(data->name);
151 pa_xfree(data->active_port);
154 /* Called from main context */
155 static void reset_callbacks(pa_sink *s) {
158 s->set_state_in_main_thread = NULL;
159 s->set_state_in_io_thread = NULL;
160 s->get_volume = NULL;
161 s->set_volume = NULL;
162 s->write_volume = NULL;
165 s->request_rewind = NULL;
166 s->update_requested_latency = NULL;
168 s->get_formats = NULL;
169 s->set_formats = NULL;
170 s->reconfigure = NULL;
173 /* Called from main context */
174 pa_sink* pa_sink_new(
176 pa_sink_new_data *data,
177 pa_sink_flags_t flags) {
181 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
182 pa_source_new_data source_data;
188 pa_assert(data->name);
189 pa_assert_ctl_context();
191 s = pa_msgobject_new(pa_sink);
193 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
194 pa_log_debug("Failed to register name %s.", data->name);
199 pa_sink_new_data_set_name(data, name);
201 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
203 pa_namereg_unregister(core, name);
207 /* FIXME, need to free s here on failure */
209 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
210 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
212 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
214 if (!data->channel_map_is_set)
215 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
217 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
218 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
220 /* FIXME: There should probably be a general function for checking whether
221 * the sink volume is allowed to be set, like there is for sink inputs. */
222 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
224 if (!data->volume_is_set) {
225 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
226 data->save_volume = false;
229 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
230 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
232 if (!data->muted_is_set)
236 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
238 pa_device_init_description(data->proplist, data->card);
239 pa_device_init_icon(data->proplist, true);
240 pa_device_init_intended_roles(data->proplist);
242 if (!data->active_port) {
243 pa_device_port *p = pa_device_port_find_best(data->ports);
245 pa_sink_new_data_set_port(data, p->name);
248 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
250 pa_namereg_unregister(core, name);
254 s->parent.parent.free = sink_free;
255 s->parent.process_msg = pa_sink_process_msg;
258 s->state = PA_SINK_INIT;
261 s->suspend_cause = data->suspend_cause;
262 pa_sink_set_mixer_dirty(s, false);
263 s->name = pa_xstrdup(name);
264 s->proplist = pa_proplist_copy(data->proplist);
265 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
266 s->module = data->module;
267 s->card = data->card;
269 s->priority = pa_device_init_priority(s->proplist);
271 s->sample_spec = data->sample_spec;
272 s->channel_map = data->channel_map;
273 s->default_sample_rate = s->sample_spec.rate;
275 if (data->alternate_sample_rate_is_set)
276 s->alternate_sample_rate = data->alternate_sample_rate;
278 s->alternate_sample_rate = s->core->alternate_sample_rate;
280 if (s->sample_spec.rate == s->alternate_sample_rate) {
281 pa_log_warn("Default and alternate sample rates are the same.");
282 s->alternate_sample_rate = 0;
285 s->inputs = pa_idxset_new(NULL, NULL);
287 s->input_to_master = NULL;
289 s->reference_volume = s->real_volume = data->volume;
290 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
291 s->base_volume = PA_VOLUME_NORM;
292 s->n_volume_steps = PA_VOLUME_NORM+1;
293 s->muted = data->muted;
294 s->refresh_volume = s->refresh_muted = false;
301 /* As a minor optimization we just steal the list instead of
303 s->ports = data->ports;
306 s->active_port = NULL;
307 s->save_port = false;
309 if (data->active_port)
310 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
311 s->save_port = data->save_port;
313 /* Hopefully the active port has already been assigned in the previous call
314 to pa_device_port_find_best, but better safe than sorry */
316 s->active_port = pa_device_port_find_best(s->ports);
319 s->port_latency_offset = s->active_port->latency_offset;
321 s->port_latency_offset = 0;
323 s->save_volume = data->save_volume;
324 s->save_muted = data->save_muted;
326 pa_silence_memchunk_get(
327 &core->silence_cache,
333 s->thread_info.rtpoll = NULL;
334 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
335 (pa_free_cb_t) pa_sink_input_unref);
336 s->thread_info.soft_volume = s->soft_volume;
337 s->thread_info.soft_muted = s->muted;
338 s->thread_info.state = s->state;
339 s->thread_info.rewind_nbytes = 0;
340 s->thread_info.rewind_requested = false;
341 s->thread_info.max_rewind = 0;
342 s->thread_info.max_request = 0;
343 s->thread_info.requested_latency_valid = false;
344 s->thread_info.requested_latency = 0;
345 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
346 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
347 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
349 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
350 s->thread_info.volume_changes_tail = NULL;
351 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
352 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
353 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
354 s->thread_info.port_latency_offset = s->port_latency_offset;
356 /* FIXME: This should probably be moved to pa_sink_put() */
357 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
360 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
362 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
363 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
366 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
367 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
371 pa_source_new_data_init(&source_data);
372 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
373 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
374 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
375 source_data.name = pa_sprintf_malloc("%s.monitor", name);
376 source_data.driver = data->driver;
377 source_data.module = data->module;
378 source_data.card = data->card;
380 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
381 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
382 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
384 s->monitor_source = pa_source_new(core, &source_data,
385 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
386 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
388 pa_source_new_data_done(&source_data);
390 if (!s->monitor_source) {
396 s->monitor_source->monitor_of = s;
398 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
399 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
400 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
405 /* Called from main context */
406 static int sink_set_state(pa_sink *s, pa_sink_state_t state, pa_suspend_cause_t suspend_cause) {
409 bool suspend_cause_changed;
414 pa_assert_ctl_context();
416 state_changed = state != s->state;
417 suspend_cause_changed = suspend_cause != s->suspend_cause;
419 if (!state_changed && !suspend_cause_changed)
422 suspending = PA_SINK_IS_OPENED(s->state) && state == PA_SINK_SUSPENDED;
423 resuming = s->state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state);
425 /* If we are resuming, suspend_cause must be 0. */
426 pa_assert(!resuming || !suspend_cause);
428 /* Here's something to think about: what to do with the suspend cause if
429 * resuming the sink fails? The old suspend cause will be incorrect, so we
430 * can't use that. On the other hand, if we set no suspend cause (as is the
431 * case currently), then it looks strange to have a sink suspended without
432 * any cause. It might be a good idea to add a new "resume failed" suspend
433 * cause, or it might just add unnecessary complexity, given that the
434 * current approach of not setting any suspend cause works well enough. */
436 if (s->set_state_in_main_thread) {
437 if ((ret = s->set_state_in_main_thread(s, state, suspend_cause)) < 0) {
438 /* set_state_in_main_thread() is allowed to fail only when resuming. */
441 /* If resuming fails, we set the state to SUSPENDED and
442 * suspend_cause to 0. */
443 state = PA_SINK_SUSPENDED;
445 state_changed = false;
446 suspend_cause_changed = suspend_cause != s->suspend_cause;
449 /* We know the state isn't changing. If the suspend cause isn't
450 * changing either, then there's nothing more to do. */
451 if (!suspend_cause_changed)
457 struct set_state_data data = { .state = state, .suspend_cause = suspend_cause };
459 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, &data, 0, NULL)) < 0) {
460 /* SET_STATE is allowed to fail only when resuming. */
463 if (s->set_state_in_main_thread)
464 s->set_state_in_main_thread(s, PA_SINK_SUSPENDED, 0);
466 /* If resuming fails, we set the state to SUSPENDED and
467 * suspend_cause to 0. */
468 state = PA_SINK_SUSPENDED;
470 state_changed = false;
471 suspend_cause_changed = suspend_cause != s->suspend_cause;
474 /* We know the state isn't changing. If the suspend cause isn't
475 * changing either, then there's nothing more to do. */
476 if (!suspend_cause_changed)
481 if (suspend_cause_changed) {
482 char old_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
483 char new_cause_buf[PA_SUSPEND_CAUSE_TO_STRING_BUF_SIZE];
485 pa_log_debug("%s: suspend_cause: %s -> %s", s->name, pa_suspend_cause_to_string(s->suspend_cause, old_cause_buf),
486 pa_suspend_cause_to_string(suspend_cause, new_cause_buf));
487 s->suspend_cause = suspend_cause;
491 pa_log_debug("%s: state: %s -> %s", s->name, pa_sink_state_to_string(s->state), pa_sink_state_to_string(state));
494 /* If we enter UNLINKED state, then we don't send change notifications.
495 * pa_sink_unlink() will send unlink notifications instead. */
496 if (state != PA_SINK_UNLINKED) {
497 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
498 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
502 if (suspending || resuming) {
506 /* We're suspending or resuming, tell everyone about it */
508 PA_IDXSET_FOREACH(i, s->inputs, idx)
509 if (s->state == PA_SINK_SUSPENDED &&
510 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
511 pa_sink_input_kill(i);
513 i->suspend(i, state == PA_SINK_SUSPENDED);
516 if ((suspending || resuming || suspend_cause_changed) && s->monitor_source && state != PA_SINK_UNLINKED)
517 pa_source_sync_suspend(s->monitor_source);
522 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
528 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
529 pa_sink_flags_t flags;
532 pa_assert(!s->write_volume || cb);
536 /* Save the current flags so we can tell if they've changed */
540 /* The sink implementor is responsible for setting decibel volume support */
541 s->flags |= PA_SINK_HW_VOLUME_CTRL;
543 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
544 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
545 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
548 /* If the flags have changed after init, let any clients know via a change event */
549 if (s->state != PA_SINK_INIT && flags != s->flags)
550 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
553 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
554 pa_sink_flags_t flags;
557 pa_assert(!cb || s->set_volume);
559 s->write_volume = cb;
561 /* Save the current flags so we can tell if they've changed */
565 s->flags |= PA_SINK_DEFERRED_VOLUME;
567 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
569 /* If the flags have changed after init, let any clients know via a change event */
570 if (s->state != PA_SINK_INIT && flags != s->flags)
571 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
574 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_get_mute_cb_t cb) {
580 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
581 pa_sink_flags_t flags;
587 /* Save the current flags so we can tell if they've changed */
591 s->flags |= PA_SINK_HW_MUTE_CTRL;
593 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
595 /* If the flags have changed after init, let any clients know via a change event */
596 if (s->state != PA_SINK_INIT && flags != s->flags)
597 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
600 static void enable_flat_volume(pa_sink *s, bool enable) {
601 pa_sink_flags_t flags;
605 /* Always follow the overall user preference here */
606 enable = enable && s->core->flat_volumes;
608 /* Save the current flags so we can tell if they've changed */
612 s->flags |= PA_SINK_FLAT_VOLUME;
614 s->flags &= ~PA_SINK_FLAT_VOLUME;
616 /* If the flags have changed after init, let any clients know via a change event */
617 if (s->state != PA_SINK_INIT && flags != s->flags)
618 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
621 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
622 pa_sink_flags_t flags;
626 /* Save the current flags so we can tell if they've changed */
630 s->flags |= PA_SINK_DECIBEL_VOLUME;
631 enable_flat_volume(s, true);
633 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
634 enable_flat_volume(s, false);
637 /* If the flags have changed after init, let any clients know via a change event */
638 if (s->state != PA_SINK_INIT && flags != s->flags)
639 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
642 /* Called from main context */
643 void pa_sink_put(pa_sink* s) {
644 pa_sink_assert_ref(s);
645 pa_assert_ctl_context();
647 pa_assert(s->state == PA_SINK_INIT);
648 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || pa_sink_is_filter(s));
650 /* The following fields must be initialized properly when calling _put() */
651 pa_assert(s->asyncmsgq);
652 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
654 /* Generally, flags should be initialized via pa_sink_new(). As a
655 * special exception we allow some volume related flags to be set
656 * between _new() and _put() by the callback setter functions above.
658 * Thus we implement a couple safeguards here which ensure the above
659 * setters were used (or at least the implementor made manual changes
660 * in a compatible way).
662 * Note: All of these flags set here can change over the life time
664 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
665 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
666 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
668 /* XXX: Currently decibel volume is disabled for all sinks that use volume
669 * sharing. When the master sink supports decibel volume, it would be good
670 * to have the flag also in the filter sink, but currently we don't do that
671 * so that the flags of the filter sink never change when it's moved from
672 * a master sink to another. One solution for this problem would be to
673 * remove user-visible volume altogether from filter sinks when volume
674 * sharing is used, but the current approach was easier to implement... */
675 /* We always support decibel volumes in software, otherwise we leave it to
676 * the sink implementor to set this flag as needed.
678 * Note: This flag can also change over the life time of the sink. */
679 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
680 pa_sink_enable_decibel_volume(s, true);
681 s->soft_volume = s->reference_volume;
684 /* If the sink implementor support DB volumes by itself, we should always
685 * try and enable flat volumes too */
686 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
687 enable_flat_volume(s, true);
689 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
690 pa_sink *root_sink = pa_sink_get_master(s);
692 pa_assert(root_sink);
694 s->reference_volume = root_sink->reference_volume;
695 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
697 s->real_volume = root_sink->real_volume;
698 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
700 /* We assume that if the sink implementor changed the default
701 * volume he did so in real_volume, because that is the usual
702 * place where he is supposed to place his changes. */
703 s->reference_volume = s->real_volume;
705 s->thread_info.soft_volume = s->soft_volume;
706 s->thread_info.soft_muted = s->muted;
707 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
709 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
710 || (s->base_volume == PA_VOLUME_NORM
711 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
712 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
713 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
714 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
715 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
717 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
718 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
719 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
721 if (s->suspend_cause)
722 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED, s->suspend_cause) == 0);
724 pa_assert_se(sink_set_state(s, PA_SINK_IDLE, 0) == 0);
726 pa_source_put(s->monitor_source);
728 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
729 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
731 /* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
732 * because module-switch-on-connect needs to know the old default sink */
733 pa_core_update_default_sink(s->core);
736 /* Called from main context */
737 void pa_sink_unlink(pa_sink* s) {
739 pa_sink_input *i, PA_UNUSED *j = NULL;
741 pa_sink_assert_ref(s);
742 pa_assert_ctl_context();
744 /* Please note that pa_sink_unlink() does more than simply
745 * reversing pa_sink_put(). It also undoes the registrations
746 * already done in pa_sink_new()! */
748 if (s->unlink_requested)
751 s->unlink_requested = true;
753 linked = PA_SINK_IS_LINKED(s->state);
756 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
758 if (s->state != PA_SINK_UNLINKED)
759 pa_namereg_unregister(s->core, s->name);
760 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
762 pa_core_update_default_sink(s->core);
765 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
767 while ((i = pa_idxset_first(s->inputs, NULL))) {
769 pa_sink_input_kill(i);
774 sink_set_state(s, PA_SINK_UNLINKED, 0);
776 s->state = PA_SINK_UNLINKED;
780 if (s->monitor_source)
781 pa_source_unlink(s->monitor_source);
784 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
785 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
789 /* Called from main context */
790 static void sink_free(pa_object *o) {
791 pa_sink *s = PA_SINK(o);
794 pa_assert_ctl_context();
795 pa_assert(pa_sink_refcnt(s) == 0);
796 pa_assert(!PA_SINK_IS_LINKED(s->state));
798 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
800 pa_sink_volume_change_flush(s);
802 if (s->monitor_source) {
803 pa_source_unref(s->monitor_source);
804 s->monitor_source = NULL;
807 pa_idxset_free(s->inputs, NULL);
808 pa_hashmap_free(s->thread_info.inputs);
810 if (s->silence.memblock)
811 pa_memblock_unref(s->silence.memblock);
817 pa_proplist_free(s->proplist);
820 pa_hashmap_free(s->ports);
825 /* Called from main context, and not while the IO thread is active, please */
826 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
827 pa_sink_assert_ref(s);
828 pa_assert_ctl_context();
832 if (s->monitor_source)
833 pa_source_set_asyncmsgq(s->monitor_source, q);
836 /* Called from main context, and not while the IO thread is active, please */
837 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
838 pa_sink_flags_t old_flags;
839 pa_sink_input *input;
842 pa_sink_assert_ref(s);
843 pa_assert_ctl_context();
845 /* For now, allow only a minimal set of flags to be changed. */
846 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
848 old_flags = s->flags;
849 s->flags = (s->flags & ~mask) | (value & mask);
851 if (s->flags == old_flags)
854 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
855 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
857 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
858 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
859 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
861 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
862 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
864 if (s->monitor_source)
865 pa_source_update_flags(s->monitor_source,
866 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
867 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
868 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
869 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
871 PA_IDXSET_FOREACH(input, s->inputs, idx) {
872 if (input->origin_sink)
873 pa_sink_update_flags(input->origin_sink, mask, value);
877 /* Called from IO context, or before _put() from main context */
878 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
879 pa_sink_assert_ref(s);
880 pa_sink_assert_io_context(s);
882 s->thread_info.rtpoll = p;
884 if (s->monitor_source)
885 pa_source_set_rtpoll(s->monitor_source, p);
888 /* Called from main context */
889 int pa_sink_update_status(pa_sink*s) {
890 pa_sink_assert_ref(s);
891 pa_assert_ctl_context();
892 pa_assert(PA_SINK_IS_LINKED(s->state));
894 if (s->state == PA_SINK_SUSPENDED)
897 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
900 /* Called from any context - must be threadsafe */
901 void pa_sink_set_mixer_dirty(pa_sink *s, bool is_dirty) {
902 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
905 /* Called from main context */
906 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
907 pa_suspend_cause_t merged_cause;
909 pa_sink_assert_ref(s);
910 pa_assert_ctl_context();
911 pa_assert(PA_SINK_IS_LINKED(s->state));
912 pa_assert(cause != 0);
915 merged_cause = s->suspend_cause | cause;
917 merged_cause = s->suspend_cause & ~cause;
919 if (!(merged_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
920 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
921 it'll be handled just fine. */
922 pa_sink_set_mixer_dirty(s, false);
923 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
924 if (s->active_port && s->set_port) {
925 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
926 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
927 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
930 s->set_port(s, s->active_port);
941 return sink_set_state(s, PA_SINK_SUSPENDED, merged_cause);
943 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE, 0);
946 /* Called from main context */
947 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
948 pa_sink_input *i, *n;
951 pa_sink_assert_ref(s);
952 pa_assert_ctl_context();
953 pa_assert(PA_SINK_IS_LINKED(s->state));
958 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
959 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
961 pa_sink_input_ref(i);
963 if (pa_sink_input_start_move(i) >= 0)
966 pa_sink_input_unref(i);
972 /* Called from main context */
973 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
976 pa_sink_assert_ref(s);
977 pa_assert_ctl_context();
978 pa_assert(PA_SINK_IS_LINKED(s->state));
981 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
982 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
983 if (pa_sink_input_finish_move(i, s, save) < 0)
984 pa_sink_input_fail_move(i);
987 pa_sink_input_unref(i);
990 pa_queue_free(q, NULL);
993 /* Called from main context */
994 void pa_sink_move_all_fail(pa_queue *q) {
997 pa_assert_ctl_context();
1000 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
1001 pa_sink_input_fail_move(i);
1002 pa_sink_input_unref(i);
1005 pa_queue_free(q, NULL);
1008 /* Called from IO thread context */
1009 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
1014 pa_sink_assert_ref(s);
1015 pa_sink_assert_io_context(s);
1017 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1018 size_t uf = i->thread_info.underrun_for_sink;
1020 /* Propagate down the filter tree */
1021 if (i->origin_sink) {
1022 size_t filter_result, left_to_play_origin;
1024 /* The recursive call works in the origin sink domain ... */
1025 left_to_play_origin = pa_convert_size(left_to_play, &i->sink->sample_spec, &i->origin_sink->sample_spec);
1027 /* .. and returns the time to sleep before waking up. We need the
1028 * underrun duration for comparisons, so we undo the subtraction on
1029 * the return value... */
1030 filter_result = left_to_play_origin - pa_sink_process_input_underruns(i->origin_sink, left_to_play_origin);
1032 /* ... and convert it back to the master sink domain */
1033 filter_result = pa_convert_size(filter_result, &i->origin_sink->sample_spec, &i->sink->sample_spec);
1035 /* Remember the longest underrun so far */
1036 if (filter_result > result)
1037 result = filter_result;
1041 /* No underrun here, move on */
1043 } else if (uf >= left_to_play) {
1044 /* The sink has possibly consumed all the data the sink input provided */
1045 pa_sink_input_process_underrun(i);
1046 } else if (uf > result) {
1047 /* Remember the longest underrun so far */
1053 pa_log_debug("%s: Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", s->name,
1054 (long) result, (long) left_to_play - result);
1055 return left_to_play - result;
1058 /* Called from IO thread context */
1059 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
1063 pa_sink_assert_ref(s);
1064 pa_sink_assert_io_context(s);
1065 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1067 /* If nobody requested this and this is actually no real rewind
1068 * then we can short cut this. Please note that this means that
1069 * not all rewind requests triggered upstream will always be
1070 * translated in actual requests! */
1071 if (!s->thread_info.rewind_requested && nbytes <= 0)
1074 s->thread_info.rewind_nbytes = 0;
1075 s->thread_info.rewind_requested = false;
1078 pa_log_debug("Processing rewind...");
1079 if (s->flags & PA_SINK_DEFERRED_VOLUME)
1080 pa_sink_volume_change_rewind(s, nbytes);
1083 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1084 pa_sink_input_assert_ref(i);
1085 pa_sink_input_process_rewind(i, nbytes);
1089 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1090 pa_source_process_rewind(s->monitor_source, nbytes);
1094 /* Called from IO thread context */
1095 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1099 size_t mixlength = *length;
1101 pa_sink_assert_ref(s);
1102 pa_sink_assert_io_context(s);
1105 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1106 pa_sink_input_assert_ref(i);
1108 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1110 if (mixlength == 0 || info->chunk.length < mixlength)
1111 mixlength = info->chunk.length;
1113 if (pa_memblock_is_silence(info->chunk.memblock)) {
1114 pa_memblock_unref(info->chunk.memblock);
1118 info->userdata = pa_sink_input_ref(i);
1120 pa_assert(info->chunk.memblock);
1121 pa_assert(info->chunk.length > 0);
1129 *length = mixlength;
1134 /* Called from IO thread context */
1135 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1139 unsigned n_unreffed = 0;
1141 pa_sink_assert_ref(s);
1142 pa_sink_assert_io_context(s);
1144 pa_assert(result->memblock);
1145 pa_assert(result->length > 0);
1147 /* We optimize for the case where the order of the inputs has not changed */
1149 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1151 pa_mix_info* m = NULL;
1153 pa_sink_input_assert_ref(i);
1155 /* Let's try to find the matching entry info the pa_mix_info array */
1156 for (j = 0; j < n; j ++) {
1158 if (info[p].userdata == i) {
1168 /* Drop read data */
1169 pa_sink_input_drop(i, result->length);
1171 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1173 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1174 void *ostate = NULL;
1175 pa_source_output *o;
1178 if (m && m->chunk.memblock) {
1180 pa_memblock_ref(c.memblock);
1181 pa_assert(result->length <= c.length);
1182 c.length = result->length;
1184 pa_memchunk_make_writable(&c, 0);
1185 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1188 pa_memblock_ref(c.memblock);
1189 pa_assert(result->length <= c.length);
1190 c.length = result->length;
1193 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1194 pa_source_output_assert_ref(o);
1195 pa_assert(o->direct_on_input == i);
1196 pa_source_post_direct(s->monitor_source, o, &c);
1199 pa_memblock_unref(c.memblock);
1204 if (m->chunk.memblock) {
1205 pa_memblock_unref(m->chunk.memblock);
1206 pa_memchunk_reset(&m->chunk);
1209 pa_sink_input_unref(m->userdata);
1216 /* Now drop references to entries that are included in the
1217 * pa_mix_info array but don't exist anymore */
1219 if (n_unreffed < n) {
1220 for (; n > 0; info++, n--) {
1222 pa_sink_input_unref(info->userdata);
1223 if (info->chunk.memblock)
1224 pa_memblock_unref(info->chunk.memblock);
1228 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1229 pa_source_post(s->monitor_source, result);
1232 /* Called from IO thread context */
1233 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1234 pa_mix_info info[MAX_MIX_CHANNELS];
1236 size_t block_size_max;
1238 pa_sink_assert_ref(s);
1239 pa_sink_assert_io_context(s);
1240 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1241 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1244 pa_assert(!s->thread_info.rewind_requested);
1245 pa_assert(s->thread_info.rewind_nbytes == 0);
1247 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1248 result->memblock = pa_memblock_ref(s->silence.memblock);
1249 result->index = s->silence.index;
1250 result->length = PA_MIN(s->silence.length, length);
1257 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1259 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1260 if (length > block_size_max)
1261 length = pa_frame_align(block_size_max, &s->sample_spec);
1263 pa_assert(length > 0);
1265 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1269 *result = s->silence;
1270 pa_memblock_ref(result->memblock);
1272 if (result->length > length)
1273 result->length = length;
1275 } else if (n == 1) {
1278 *result = info[0].chunk;
1279 pa_memblock_ref(result->memblock);
1281 if (result->length > length)
1282 result->length = length;
1284 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1286 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1287 pa_memblock_unref(result->memblock);
1288 pa_silence_memchunk_get(&s->core->silence_cache,
1293 } else if (!pa_cvolume_is_norm(&volume)) {
1294 pa_memchunk_make_writable(result, 0);
1295 pa_volume_memchunk(result, &s->sample_spec, &volume);
1299 result->memblock = pa_memblock_new(s->core->mempool, length);
1301 ptr = pa_memblock_acquire(result->memblock);
1302 result->length = pa_mix(info, n,
1305 &s->thread_info.soft_volume,
1306 s->thread_info.soft_muted);
1307 pa_memblock_release(result->memblock);
1312 inputs_drop(s, info, n, result);
1317 /* Called from IO thread context */
1318 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1319 pa_mix_info info[MAX_MIX_CHANNELS];
1321 size_t length, block_size_max;
1323 pa_sink_assert_ref(s);
1324 pa_sink_assert_io_context(s);
1325 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1327 pa_assert(target->memblock);
1328 pa_assert(target->length > 0);
1329 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1331 pa_assert(!s->thread_info.rewind_requested);
1332 pa_assert(s->thread_info.rewind_nbytes == 0);
1334 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1335 pa_silence_memchunk(target, &s->sample_spec);
1341 length = target->length;
1342 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1343 if (length > block_size_max)
1344 length = pa_frame_align(block_size_max, &s->sample_spec);
1346 pa_assert(length > 0);
1348 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1351 if (target->length > length)
1352 target->length = length;
1354 pa_silence_memchunk(target, &s->sample_spec);
1355 } else if (n == 1) {
1358 if (target->length > length)
1359 target->length = length;
1361 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1363 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1364 pa_silence_memchunk(target, &s->sample_spec);
1368 vchunk = info[0].chunk;
1369 pa_memblock_ref(vchunk.memblock);
1371 if (vchunk.length > length)
1372 vchunk.length = length;
1374 if (!pa_cvolume_is_norm(&volume)) {
1375 pa_memchunk_make_writable(&vchunk, 0);
1376 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1379 pa_memchunk_memcpy(target, &vchunk);
1380 pa_memblock_unref(vchunk.memblock);
1386 ptr = pa_memblock_acquire(target->memblock);
1388 target->length = pa_mix(info, n,
1389 (uint8_t*) ptr + target->index, length,
1391 &s->thread_info.soft_volume,
1392 s->thread_info.soft_muted);
1394 pa_memblock_release(target->memblock);
1397 inputs_drop(s, info, n, target);
1402 /* Called from IO thread context */
1403 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1407 pa_sink_assert_ref(s);
1408 pa_sink_assert_io_context(s);
1409 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1411 pa_assert(target->memblock);
1412 pa_assert(target->length > 0);
1413 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1415 pa_assert(!s->thread_info.rewind_requested);
1416 pa_assert(s->thread_info.rewind_nbytes == 0);
1418 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1419 pa_silence_memchunk(target, &s->sample_spec);
1432 pa_sink_render_into(s, &chunk);
1441 /* Called from IO thread context */
1442 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1443 pa_sink_assert_ref(s);
1444 pa_sink_assert_io_context(s);
1445 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1446 pa_assert(length > 0);
1447 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1450 pa_assert(!s->thread_info.rewind_requested);
1451 pa_assert(s->thread_info.rewind_nbytes == 0);
1455 pa_sink_render(s, length, result);
1457 if (result->length < length) {
1460 pa_memchunk_make_writable(result, length);
1462 chunk.memblock = result->memblock;
1463 chunk.index = result->index + result->length;
1464 chunk.length = length - result->length;
1466 pa_sink_render_into_full(s, &chunk);
1468 result->length = length;
1474 /* Called from main thread */
1475 int pa_sink_reconfigure(pa_sink *s, pa_sample_spec *spec, bool passthrough) {
1477 pa_sample_spec desired_spec;
1478 uint32_t default_rate = s->default_sample_rate;
1479 uint32_t alternate_rate = s->alternate_sample_rate;
1482 bool default_rate_is_usable = false;
1483 bool alternate_rate_is_usable = false;
1484 bool avoid_resampling = s->core->avoid_resampling;
1486 /* We currently only try to reconfigure the sample rate */
1488 if (pa_sample_spec_equal(spec, &s->sample_spec))
1491 if (!s->reconfigure)
1494 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1495 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1499 if (PA_SINK_IS_RUNNING(s->state)) {
1500 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1501 s->sample_spec.rate);
1505 if (s->monitor_source) {
1506 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1507 pa_log_info("Cannot update rate, monitor source is RUNNING");
1512 if (PA_UNLIKELY(!pa_sample_spec_valid(spec)))
1515 desired_spec = s->sample_spec;
1518 /* We have to try to use the sink input rate */
1519 desired_spec.rate = spec->rate;
1521 } else if (avoid_resampling && (spec->rate >= default_rate || spec->rate >= alternate_rate)) {
1522 /* We just try to set the sink input's sample rate if it's not too low */
1523 desired_spec.rate = spec->rate;
1525 } else if (default_rate == spec->rate || alternate_rate == spec->rate) {
1526 /* We can directly try to use this rate */
1527 desired_spec.rate = spec->rate;
1530 /* See if we can pick a rate that results in less resampling effort */
1531 if (default_rate % 11025 == 0 && spec->rate % 11025 == 0)
1532 default_rate_is_usable = true;
1533 if (default_rate % 4000 == 0 && spec->rate % 4000 == 0)
1534 default_rate_is_usable = true;
1535 if (alternate_rate && alternate_rate % 11025 == 0 && spec->rate % 11025 == 0)
1536 alternate_rate_is_usable = true;
1537 if (alternate_rate && alternate_rate % 4000 == 0 && spec->rate % 4000 == 0)
1538 alternate_rate_is_usable = true;
1540 if (alternate_rate_is_usable && !default_rate_is_usable)
1541 desired_spec.rate = alternate_rate;
1543 desired_spec.rate = default_rate;
1546 if (pa_sample_spec_equal(&desired_spec, &s->sample_spec) && passthrough == pa_sink_is_passthrough(s))
1549 if (!passthrough && pa_sink_used_by(s) > 0)
1552 pa_log_debug("Suspending sink %s due to changing format.", s->name);
1553 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1555 if (s->reconfigure(s, &desired_spec, passthrough) >= 0) {
1556 /* update monitor source as well */
1557 if (s->monitor_source && !passthrough)
1558 pa_source_reconfigure(s->monitor_source, &desired_spec, false);
1559 pa_log_info("Changed format successfully");
1561 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1562 if (i->state == PA_SINK_INPUT_CORKED)
1563 pa_sink_input_update_rate(i);
1569 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1574 /* Called from main thread */
1575 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1578 pa_sink_assert_ref(s);
1579 pa_assert_ctl_context();
1580 pa_assert(PA_SINK_IS_LINKED(s->state));
1582 /* The returned value is supposed to be in the time domain of the sound card! */
1584 if (s->state == PA_SINK_SUSPENDED)
1587 if (!(s->flags & PA_SINK_LATENCY))
1590 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1592 /* the return value is unsigned, so check that the offset can be added to usec without
1594 if (-s->port_latency_offset <= usec)
1595 usec += s->port_latency_offset;
1599 return (pa_usec_t)usec;
1602 /* Called from IO thread */
1603 int64_t pa_sink_get_latency_within_thread(pa_sink *s, bool allow_negative) {
1607 pa_sink_assert_ref(s);
1608 pa_sink_assert_io_context(s);
1609 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1611 /* The returned value is supposed to be in the time domain of the sound card! */
1613 if (s->thread_info.state == PA_SINK_SUSPENDED)
1616 if (!(s->flags & PA_SINK_LATENCY))
1619 o = PA_MSGOBJECT(s);
1621 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1623 o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1625 /* If allow_negative is false, the call should only return positive values, */
1626 usec += s->thread_info.port_latency_offset;
1627 if (!allow_negative && usec < 0)
1633 /* Called from the main thread (and also from the IO thread while the main
1634 * thread is waiting).
1636 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1637 * set. Instead, flat volume mode is detected by checking whether the root sink
1638 * has the flag set. */
1639 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1640 pa_sink_assert_ref(s);
1642 s = pa_sink_get_master(s);
1645 return (s->flags & PA_SINK_FLAT_VOLUME);
1650 /* Called from the main thread (and also from the IO thread while the main
1651 * thread is waiting). */
1652 pa_sink *pa_sink_get_master(pa_sink *s) {
1653 pa_sink_assert_ref(s);
1655 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1656 if (PA_UNLIKELY(!s->input_to_master))
1659 s = s->input_to_master->sink;
1665 /* Called from main context */
1666 bool pa_sink_is_filter(pa_sink *s) {
1667 pa_sink_assert_ref(s);
1669 return (s->input_to_master != NULL);
1672 /* Called from main context */
1673 bool pa_sink_is_passthrough(pa_sink *s) {
1674 pa_sink_input *alt_i;
1677 pa_sink_assert_ref(s);
1679 /* one and only one PASSTHROUGH input can possibly be connected */
1680 if (pa_idxset_size(s->inputs) == 1) {
1681 alt_i = pa_idxset_first(s->inputs, &idx);
1683 if (pa_sink_input_is_passthrough(alt_i))
1690 /* Called from main context */
1691 void pa_sink_enter_passthrough(pa_sink *s) {
1694 /* The sink implementation is reconfigured for passthrough in
1695 * pa_sink_reconfigure(). This function sets the PA core objects to
1696 * passthrough mode. */
1698 /* disable the monitor in passthrough mode */
1699 if (s->monitor_source) {
1700 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1701 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1704 /* set the volume to NORM */
1705 s->saved_volume = *pa_sink_get_volume(s, true);
1706 s->saved_save_volume = s->save_volume;
1708 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1709 pa_sink_set_volume(s, &volume, true, false);
1711 pa_log_debug("Suspending/Restarting sink %s to enter passthrough mode", s->name);
1714 /* Called from main context */
1715 void pa_sink_leave_passthrough(pa_sink *s) {
1716 /* Unsuspend monitor */
1717 if (s->monitor_source) {
1718 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1719 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1722 /* Restore sink volume to what it was before we entered passthrough mode */
1723 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1725 pa_cvolume_init(&s->saved_volume);
1726 s->saved_save_volume = false;
1730 /* Called from main context. */
1731 static void compute_reference_ratio(pa_sink_input *i) {
1733 pa_cvolume remapped;
1737 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1740 * Calculates the reference ratio from the sink's reference
1741 * volume. This basically calculates:
1743 * i->reference_ratio = i->volume / i->sink->reference_volume
1746 remapped = i->sink->reference_volume;
1747 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1749 ratio = i->reference_ratio;
1751 for (c = 0; c < i->sample_spec.channels; c++) {
1753 /* We don't update when the sink volume is 0 anyway */
1754 if (remapped.values[c] <= PA_VOLUME_MUTED)
1757 /* Don't update the reference ratio unless necessary */
1758 if (pa_sw_volume_multiply(
1760 remapped.values[c]) == i->volume.values[c])
1763 ratio.values[c] = pa_sw_volume_divide(
1764 i->volume.values[c],
1765 remapped.values[c]);
1768 pa_sink_input_set_reference_ratio(i, &ratio);
1771 /* Called from main context. Only called for the root sink in volume sharing
1772 * cases, except for internal recursive calls. */
1773 static void compute_reference_ratios(pa_sink *s) {
1777 pa_sink_assert_ref(s);
1778 pa_assert_ctl_context();
1779 pa_assert(PA_SINK_IS_LINKED(s->state));
1780 pa_assert(pa_sink_flat_volume_enabled(s));
1782 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1783 compute_reference_ratio(i);
1785 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1786 && PA_SINK_IS_LINKED(i->origin_sink->state))
1787 compute_reference_ratios(i->origin_sink);
1791 /* Called from main context. Only called for the root sink in volume sharing
1792 * cases, except for internal recursive calls. */
1793 static void compute_real_ratios(pa_sink *s) {
1797 pa_sink_assert_ref(s);
1798 pa_assert_ctl_context();
1799 pa_assert(PA_SINK_IS_LINKED(s->state));
1800 pa_assert(pa_sink_flat_volume_enabled(s));
1802 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1804 pa_cvolume remapped;
1806 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1807 /* The origin sink uses volume sharing, so this input's real ratio
1808 * is handled as a special case - the real ratio must be 0 dB, and
1809 * as a result i->soft_volume must equal i->volume_factor. */
1810 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1811 i->soft_volume = i->volume_factor;
1813 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1814 compute_real_ratios(i->origin_sink);
1820 * This basically calculates:
1822 * i->real_ratio := i->volume / s->real_volume
1823 * i->soft_volume := i->real_ratio * i->volume_factor
1826 remapped = s->real_volume;
1827 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1829 i->real_ratio.channels = i->sample_spec.channels;
1830 i->soft_volume.channels = i->sample_spec.channels;
1832 for (c = 0; c < i->sample_spec.channels; c++) {
1834 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1835 /* We leave i->real_ratio untouched */
1836 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1840 /* Don't lose accuracy unless necessary */
1841 if (pa_sw_volume_multiply(
1842 i->real_ratio.values[c],
1843 remapped.values[c]) != i->volume.values[c])
1845 i->real_ratio.values[c] = pa_sw_volume_divide(
1846 i->volume.values[c],
1847 remapped.values[c]);
1849 i->soft_volume.values[c] = pa_sw_volume_multiply(
1850 i->real_ratio.values[c],
1851 i->volume_factor.values[c]);
1854 /* We don't copy the soft_volume to the thread_info data
1855 * here. That must be done by the caller */
1859 static pa_cvolume *cvolume_remap_minimal_impact(
1861 const pa_cvolume *template,
1862 const pa_channel_map *from,
1863 const pa_channel_map *to) {
1868 pa_assert(template);
1871 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1872 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1874 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1875 * mapping from sink input to sink volumes:
1877 * If template is a possible remapping from v it is used instead
1878 * of remapping anew.
1880 * If the channel maps don't match we set an all-channel volume on
1881 * the sink to ensure that changing a volume on one stream has no
1882 * effect that cannot be compensated for in another stream that
1883 * does not have the same channel map as the sink. */
1885 if (pa_channel_map_equal(from, to))
1889 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1894 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1898 /* Called from main thread. Only called for the root sink in volume sharing
1899 * cases, except for internal recursive calls. */
1900 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1904 pa_sink_assert_ref(s);
1905 pa_assert(max_volume);
1906 pa_assert(channel_map);
1907 pa_assert(pa_sink_flat_volume_enabled(s));
1909 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1910 pa_cvolume remapped;
1912 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1913 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1914 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1916 /* Ignore this input. The origin sink uses volume sharing, so this
1917 * input's volume will be set to be equal to the root sink's real
1918 * volume. Obviously this input's current volume must not then
1919 * affect what the root sink's real volume will be. */
1923 remapped = i->volume;
1924 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1925 pa_cvolume_merge(max_volume, max_volume, &remapped);
1929 /* Called from main thread. Only called for the root sink in volume sharing
1930 * cases, except for internal recursive calls. */
1931 static bool has_inputs(pa_sink *s) {
1935 pa_sink_assert_ref(s);
1937 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1938 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1945 /* Called from main thread. Only called for the root sink in volume sharing
1946 * cases, except for internal recursive calls. */
1947 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1951 pa_sink_assert_ref(s);
1952 pa_assert(new_volume);
1953 pa_assert(channel_map);
1955 s->real_volume = *new_volume;
1956 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1958 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1959 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1960 if (pa_sink_flat_volume_enabled(s)) {
1961 pa_cvolume new_input_volume;
1963 /* Follow the root sink's real volume. */
1964 new_input_volume = *new_volume;
1965 pa_cvolume_remap(&new_input_volume, channel_map, &i->channel_map);
1966 pa_sink_input_set_volume_direct(i, &new_input_volume);
1967 compute_reference_ratio(i);
1970 if (PA_SINK_IS_LINKED(i->origin_sink->state))
1971 update_real_volume(i->origin_sink, new_volume, channel_map);
1976 /* Called from main thread. Only called for the root sink in shared volume
1978 static void compute_real_volume(pa_sink *s) {
1979 pa_sink_assert_ref(s);
1980 pa_assert_ctl_context();
1981 pa_assert(PA_SINK_IS_LINKED(s->state));
1982 pa_assert(pa_sink_flat_volume_enabled(s));
1983 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1985 /* This determines the maximum volume of all streams and sets
1986 * s->real_volume accordingly. */
1988 if (!has_inputs(s)) {
1989 /* In the special case that we have no sink inputs we leave the
1990 * volume unmodified. */
1991 update_real_volume(s, &s->reference_volume, &s->channel_map);
1995 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1997 /* First let's determine the new maximum volume of all inputs
1998 * connected to this sink */
1999 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
2000 update_real_volume(s, &s->real_volume, &s->channel_map);
2002 /* Then, let's update the real ratios/soft volumes of all inputs
2003 * connected to this sink */
2004 compute_real_ratios(s);
2007 /* Called from main thread. Only called for the root sink in shared volume
2008 * cases, except for internal recursive calls. */
2009 static void propagate_reference_volume(pa_sink *s) {
2013 pa_sink_assert_ref(s);
2014 pa_assert_ctl_context();
2015 pa_assert(PA_SINK_IS_LINKED(s->state));
2016 pa_assert(pa_sink_flat_volume_enabled(s));
2018 /* This is called whenever the sink volume changes that is not
2019 * caused by a sink input volume change. We need to fix up the
2020 * sink input volumes accordingly */
2022 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2023 pa_cvolume new_volume;
2025 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2026 if (PA_SINK_IS_LINKED(i->origin_sink->state))
2027 propagate_reference_volume(i->origin_sink);
2029 /* Since the origin sink uses volume sharing, this input's volume
2030 * needs to be updated to match the root sink's real volume, but
2031 * that will be done later in update_real_volume(). */
2035 /* This basically calculates:
2037 * i->volume := s->reference_volume * i->reference_ratio */
2039 new_volume = s->reference_volume;
2040 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2041 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2042 pa_sink_input_set_volume_direct(i, &new_volume);
2046 /* Called from main thread. Only called for the root sink in volume sharing
2047 * cases, except for internal recursive calls. The return value indicates
2048 * whether any reference volume actually changed. */
2049 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2051 bool reference_volume_changed;
2055 pa_sink_assert_ref(s);
2056 pa_assert(PA_SINK_IS_LINKED(s->state));
2058 pa_assert(channel_map);
2059 pa_assert(pa_cvolume_valid(v));
2062 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2064 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2065 pa_sink_set_reference_volume_direct(s, &volume);
2067 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2069 if (!reference_volume_changed && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2070 /* If the root sink's volume doesn't change, then there can't be any
2071 * changes in the other sinks in the sink tree either.
2073 * It's probably theoretically possible that even if the root sink's
2074 * volume changes slightly, some filter sink doesn't change its volume
2075 * due to rounding errors. If that happens, we still want to propagate
2076 * the changed root sink volume to the sinks connected to the
2077 * intermediate sink that didn't change its volume. This theoretical
2078 * possibility is the reason why we have that !(s->flags &
2079 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2080 * notice even if we returned here false always if
2081 * reference_volume_changed is false. */
2084 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2085 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2086 && PA_SINK_IS_LINKED(i->origin_sink->state))
2087 update_reference_volume(i->origin_sink, v, channel_map, false);
2093 /* Called from main thread */
2094 void pa_sink_set_volume(
2096 const pa_cvolume *volume,
2100 pa_cvolume new_reference_volume;
2103 pa_sink_assert_ref(s);
2104 pa_assert_ctl_context();
2105 pa_assert(PA_SINK_IS_LINKED(s->state));
2106 pa_assert(!volume || pa_cvolume_valid(volume));
2107 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2108 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2110 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2111 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2112 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2113 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2117 /* In case of volume sharing, the volume is set for the root sink first,
2118 * from which it's then propagated to the sharing sinks. */
2119 root_sink = pa_sink_get_master(s);
2121 if (PA_UNLIKELY(!root_sink))
2124 /* As a special exception we accept mono volumes on all sinks --
2125 * even on those with more complex channel maps */
2128 if (pa_cvolume_compatible(volume, &s->sample_spec))
2129 new_reference_volume = *volume;
2131 new_reference_volume = s->reference_volume;
2132 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2135 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2137 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2138 if (pa_sink_flat_volume_enabled(root_sink)) {
2139 /* OK, propagate this volume change back to the inputs */
2140 propagate_reference_volume(root_sink);
2142 /* And now recalculate the real volume */
2143 compute_real_volume(root_sink);
2145 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2149 /* If volume is NULL we synchronize the sink's real and
2150 * reference volumes with the stream volumes. */
2152 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2154 /* Ok, let's determine the new real volume */
2155 compute_real_volume(root_sink);
2157 /* Let's 'push' the reference volume if necessary */
2158 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2159 /* If the sink and its root don't have the same number of channels, we need to remap */
2160 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2161 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2162 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2164 /* Now that the reference volume is updated, we can update the streams'
2165 * reference ratios. */
2166 compute_reference_ratios(root_sink);
2169 if (root_sink->set_volume) {
2170 /* If we have a function set_volume(), then we do not apply a
2171 * soft volume by default. However, set_volume() is free to
2172 * apply one to root_sink->soft_volume */
2174 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2175 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2176 root_sink->set_volume(root_sink);
2179 /* If we have no function set_volume(), then the soft volume
2180 * becomes the real volume */
2181 root_sink->soft_volume = root_sink->real_volume;
2183 /* This tells the sink that soft volume and/or real volume changed */
2185 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2188 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2189 * Only to be called by sink implementor */
2190 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2192 pa_sink_assert_ref(s);
2193 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2195 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2196 pa_sink_assert_io_context(s);
2198 pa_assert_ctl_context();
2201 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2203 s->soft_volume = *volume;
2205 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2206 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2208 s->thread_info.soft_volume = s->soft_volume;
2211 /* Called from the main thread. Only called for the root sink in volume sharing
2212 * cases, except for internal recursive calls. */
2213 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2217 pa_sink_assert_ref(s);
2218 pa_assert(old_real_volume);
2219 pa_assert_ctl_context();
2220 pa_assert(PA_SINK_IS_LINKED(s->state));
2222 /* This is called when the hardware's real volume changes due to
2223 * some external event. We copy the real volume into our
2224 * reference volume and then rebuild the stream volumes based on
2225 * i->real_ratio which should stay fixed. */
2227 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2228 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2231 /* 1. Make the real volume the reference volume */
2232 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2235 if (pa_sink_flat_volume_enabled(s)) {
2237 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2238 pa_cvolume new_volume;
2240 /* 2. Since the sink's reference and real volumes are equal
2241 * now our ratios should be too. */
2242 pa_sink_input_set_reference_ratio(i, &i->real_ratio);
2244 /* 3. Recalculate the new stream reference volume based on the
2245 * reference ratio and the sink's reference volume.
2247 * This basically calculates:
2249 * i->volume = s->reference_volume * i->reference_ratio
2251 * This is identical to propagate_reference_volume() */
2252 new_volume = s->reference_volume;
2253 pa_cvolume_remap(&new_volume, &s->channel_map, &i->channel_map);
2254 pa_sw_cvolume_multiply(&new_volume, &new_volume, &i->reference_ratio);
2255 pa_sink_input_set_volume_direct(i, &new_volume);
2257 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
2258 && PA_SINK_IS_LINKED(i->origin_sink->state))
2259 propagate_real_volume(i->origin_sink, old_real_volume);
2263 /* Something got changed in the hardware. It probably makes sense
2264 * to save changed hw settings given that hw volume changes not
2265 * triggered by PA are almost certainly done by the user. */
2266 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2267 s->save_volume = true;
2270 /* Called from io thread */
2271 void pa_sink_update_volume_and_mute(pa_sink *s) {
2273 pa_sink_assert_io_context(s);
2275 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2278 /* Called from main thread */
2279 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2280 pa_sink_assert_ref(s);
2281 pa_assert_ctl_context();
2282 pa_assert(PA_SINK_IS_LINKED(s->state));
2284 if (s->refresh_volume || force_refresh) {
2285 struct pa_cvolume old_real_volume;
2287 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2289 old_real_volume = s->real_volume;
2291 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2294 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2296 update_real_volume(s, &s->real_volume, &s->channel_map);
2297 propagate_real_volume(s, &old_real_volume);
2300 return &s->reference_volume;
2303 /* Called from main thread. In volume sharing cases, only the root sink may
2305 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2306 pa_cvolume old_real_volume;
2308 pa_sink_assert_ref(s);
2309 pa_assert_ctl_context();
2310 pa_assert(PA_SINK_IS_LINKED(s->state));
2311 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2313 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2315 old_real_volume = s->real_volume;
2316 update_real_volume(s, new_real_volume, &s->channel_map);
2317 propagate_real_volume(s, &old_real_volume);
2320 /* Called from main thread */
2321 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2324 pa_sink_assert_ref(s);
2325 pa_assert_ctl_context();
2327 old_muted = s->muted;
2329 if (mute == old_muted) {
2330 s->save_muted |= save;
2335 s->save_muted = save;
2337 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute) {
2338 s->set_mute_in_progress = true;
2340 s->set_mute_in_progress = false;
2343 if (!PA_SINK_IS_LINKED(s->state))
2346 pa_log_debug("The mute of sink %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
2347 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2348 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2349 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_MUTE_CHANGED], s);
2352 /* Called from main thread */
2353 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2355 pa_sink_assert_ref(s);
2356 pa_assert_ctl_context();
2357 pa_assert(PA_SINK_IS_LINKED(s->state));
2359 if ((s->refresh_muted || force_refresh) && s->get_mute) {
2362 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2363 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
2364 pa_sink_mute_changed(s, mute);
2366 if (s->get_mute(s, &mute) >= 0)
2367 pa_sink_mute_changed(s, mute);
2374 /* Called from main thread */
2375 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2376 pa_sink_assert_ref(s);
2377 pa_assert_ctl_context();
2378 pa_assert(PA_SINK_IS_LINKED(s->state));
2380 if (s->set_mute_in_progress)
2383 /* pa_sink_set_mute() does this same check, so this may appear redundant,
2384 * but we must have this here also, because the save parameter of
2385 * pa_sink_set_mute() would otherwise have unintended side effects (saving
2386 * the mute state when it shouldn't be saved). */
2387 if (new_muted == s->muted)
2390 pa_sink_set_mute(s, new_muted, true);
2393 /* Called from main thread */
2394 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2395 pa_sink_assert_ref(s);
2396 pa_assert_ctl_context();
2399 pa_proplist_update(s->proplist, mode, p);
2401 if (PA_SINK_IS_LINKED(s->state)) {
2402 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2403 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2409 /* Called from main thread */
2410 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2411 void pa_sink_set_description(pa_sink *s, const char *description) {
2413 pa_sink_assert_ref(s);
2414 pa_assert_ctl_context();
2416 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2419 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2421 if (old && description && pa_streq(old, description))
2425 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2427 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2429 if (s->monitor_source) {
2432 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2433 pa_source_set_description(s->monitor_source, n);
2437 if (PA_SINK_IS_LINKED(s->state)) {
2438 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2439 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2443 /* Called from main thread */
2444 unsigned pa_sink_linked_by(pa_sink *s) {
2447 pa_sink_assert_ref(s);
2448 pa_assert_ctl_context();
2449 pa_assert(PA_SINK_IS_LINKED(s->state));
2451 ret = pa_idxset_size(s->inputs);
2453 /* We add in the number of streams connected to us here. Please
2454 * note the asymmetry to pa_sink_used_by()! */
2456 if (s->monitor_source)
2457 ret += pa_source_linked_by(s->monitor_source);
2462 /* Called from main thread */
2463 unsigned pa_sink_used_by(pa_sink *s) {
2466 pa_sink_assert_ref(s);
2467 pa_assert_ctl_context();
2468 pa_assert(PA_SINK_IS_LINKED(s->state));
2470 ret = pa_idxset_size(s->inputs);
2471 pa_assert(ret >= s->n_corked);
2473 /* Streams connected to our monitor source do not matter for
2474 * pa_sink_used_by()!.*/
2476 return ret - s->n_corked;
2479 /* Called from main thread */
2480 unsigned pa_sink_check_suspend(pa_sink *s, pa_sink_input *ignore_input, pa_source_output *ignore_output) {
2485 pa_sink_assert_ref(s);
2486 pa_assert_ctl_context();
2488 if (!PA_SINK_IS_LINKED(s->state))
2493 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2494 pa_sink_input_state_t st;
2496 if (i == ignore_input)
2499 st = pa_sink_input_get_state(i);
2501 /* We do not assert here. It is perfectly valid for a sink input to
2502 * be in the INIT state (i.e. created, marked done but not yet put)
2503 * and we should not care if it's unlinked as it won't contribute
2504 * towards our busy status.
2506 if (!PA_SINK_INPUT_IS_LINKED(st))
2509 if (st == PA_SINK_INPUT_CORKED)
2512 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2518 if (s->monitor_source)
2519 ret += pa_source_check_suspend(s->monitor_source, ignore_output);
2524 const char *pa_sink_state_to_string(pa_sink_state_t state) {
2526 case PA_SINK_INIT: return "INIT";
2527 case PA_SINK_IDLE: return "IDLE";
2528 case PA_SINK_RUNNING: return "RUNNING";
2529 case PA_SINK_SUSPENDED: return "SUSPENDED";
2530 case PA_SINK_UNLINKED: return "UNLINKED";
2531 case PA_SINK_INVALID_STATE: return "INVALID_STATE";
2534 pa_assert_not_reached();
2537 /* Called from the IO thread */
2538 static void sync_input_volumes_within_thread(pa_sink *s) {
2542 pa_sink_assert_ref(s);
2543 pa_sink_assert_io_context(s);
2545 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2546 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2549 i->thread_info.soft_volume = i->soft_volume;
2550 pa_sink_input_request_rewind(i, 0, true, false, false);
2554 /* Called from the IO thread. Only called for the root sink in volume sharing
2555 * cases, except for internal recursive calls. */
2556 static void set_shared_volume_within_thread(pa_sink *s) {
2557 pa_sink_input *i = NULL;
2560 pa_sink_assert_ref(s);
2562 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2564 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2565 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2566 set_shared_volume_within_thread(i->origin_sink);
2570 /* Called from IO thread, except when it is not */
2571 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2572 pa_sink *s = PA_SINK(o);
2573 pa_sink_assert_ref(s);
2575 switch ((pa_sink_message_t) code) {
2577 case PA_SINK_MESSAGE_ADD_INPUT: {
2578 pa_sink_input *i = PA_SINK_INPUT(userdata);
2580 /* If you change anything here, make sure to change the
2581 * sink input handling a few lines down at
2582 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2584 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2586 /* Since the caller sleeps in pa_sink_input_put(), we can
2587 * safely access data outside of thread_info even though
2590 if ((i->thread_info.sync_prev = i->sync_prev)) {
2591 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2592 pa_assert(i->sync_prev->sync_next == i);
2593 i->thread_info.sync_prev->thread_info.sync_next = i;
2596 if ((i->thread_info.sync_next = i->sync_next)) {
2597 pa_assert(i->sink == i->thread_info.sync_next->sink);
2598 pa_assert(i->sync_next->sync_prev == i);
2599 i->thread_info.sync_next->thread_info.sync_prev = i;
2602 pa_sink_input_attach(i);
2604 pa_sink_input_set_state_within_thread(i, i->state);
2606 /* The requested latency of the sink input needs to be fixed up and
2607 * then configured on the sink. If this causes the sink latency to
2608 * go down, the sink implementor is responsible for doing a rewind
2609 * in the update_requested_latency() callback to ensure that the
2610 * sink buffer doesn't contain more data than what the new latency
2613 * XXX: Does it really make sense to push this responsibility to
2614 * the sink implementors? Wouldn't it be better to do it once in
2615 * the core than many times in the modules? */
2617 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2618 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2620 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2621 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2623 /* We don't rewind here automatically. This is left to the
2624 * sink input implementor because some sink inputs need a
2625 * slow start, i.e. need some time to buffer client
2626 * samples before beginning streaming.
2628 * XXX: Does it really make sense to push this functionality to
2629 * the sink implementors? Wouldn't it be better to do it once in
2630 * the core than many times in the modules? */
2632 /* In flat volume mode we need to update the volume as
2634 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2637 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2638 pa_sink_input *i = PA_SINK_INPUT(userdata);
2640 /* If you change anything here, make sure to change the
2641 * sink input handling a few lines down at
2642 * PA_SINK_MESSAGE_START_MOVE, too. */
2644 pa_sink_input_detach(i);
2646 pa_sink_input_set_state_within_thread(i, i->state);
2648 /* Since the caller sleeps in pa_sink_input_unlink(),
2649 * we can safely access data outside of thread_info even
2650 * though it is mutable */
2652 pa_assert(!i->sync_prev);
2653 pa_assert(!i->sync_next);
2655 if (i->thread_info.sync_prev) {
2656 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2657 i->thread_info.sync_prev = NULL;
2660 if (i->thread_info.sync_next) {
2661 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2662 i->thread_info.sync_next = NULL;
2665 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2666 pa_sink_invalidate_requested_latency(s, true);
2667 pa_sink_request_rewind(s, (size_t) -1);
2669 /* In flat volume mode we need to update the volume as
2671 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2674 case PA_SINK_MESSAGE_START_MOVE: {
2675 pa_sink_input *i = PA_SINK_INPUT(userdata);
2677 /* We don't support moving synchronized streams. */
2678 pa_assert(!i->sync_prev);
2679 pa_assert(!i->sync_next);
2680 pa_assert(!i->thread_info.sync_next);
2681 pa_assert(!i->thread_info.sync_prev);
2683 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2685 size_t sink_nbytes, total_nbytes;
2687 /* The old sink probably has some audio from this
2688 * stream in its buffer. We want to "take it back" as
2689 * much as possible and play it to the new sink. We
2690 * don't know at this point how much the old sink can
2691 * rewind. We have to pick something, and that
2692 * something is the full latency of the old sink here.
2693 * So we rewind the stream buffer by the sink latency
2694 * amount, which may be more than what we should
2695 * rewind. This can result in a chunk of audio being
2696 * played both to the old sink and the new sink.
2698 * FIXME: Fix this code so that we don't have to make
2699 * guesses about how much the sink will actually be
2700 * able to rewind. If someone comes up with a solution
2701 * for this, something to note is that the part of the
2702 * latency that the old sink couldn't rewind should
2703 * ideally be compensated after the stream has moved
2704 * to the new sink by adding silence. The new sink
2705 * most likely can't start playing the moved stream
2706 * immediately, and that gap should be removed from
2707 * the "compensation silence" (at least at the time of
2708 * writing this, the move finish code will actually
2709 * already take care of dropping the new sink's
2710 * unrewindable latency, so taking into account the
2711 * unrewindable latency of the old sink is the only
2714 * The render_memblockq contents are discarded,
2715 * because when the sink changes, the format of the
2716 * audio stored in the render_memblockq may change
2717 * too, making the stored audio invalid. FIXME:
2718 * However, the read and write indices are moved back
2719 * the same amount, so if they are not the same now,
2720 * they won't be the same after the rewind either. If
2721 * the write index of the render_memblockq is ahead of
2722 * the read index, then the render_memblockq will feed
2723 * the new sink some silence first, which it shouldn't
2724 * do. The write index should be flushed to be the
2725 * same as the read index. */
2727 /* Get the latency of the sink */
2728 usec = pa_sink_get_latency_within_thread(s, false);
2729 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2730 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2732 if (total_nbytes > 0) {
2733 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2734 i->thread_info.rewrite_flush = true;
2735 pa_sink_input_process_rewind(i, sink_nbytes);
2739 pa_sink_input_detach(i);
2741 /* Let's remove the sink input ...*/
2742 pa_hashmap_remove_and_free(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index));
2744 pa_sink_invalidate_requested_latency(s, true);
2746 pa_log_debug("Requesting rewind due to started move");
2747 pa_sink_request_rewind(s, (size_t) -1);
2749 /* In flat volume mode we need to update the volume as
2751 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2754 case PA_SINK_MESSAGE_FINISH_MOVE: {
2755 pa_sink_input *i = PA_SINK_INPUT(userdata);
2757 /* We don't support moving synchronized streams. */
2758 pa_assert(!i->sync_prev);
2759 pa_assert(!i->sync_next);
2760 pa_assert(!i->thread_info.sync_next);
2761 pa_assert(!i->thread_info.sync_prev);
2763 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2765 pa_sink_input_attach(i);
2767 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2771 /* In the ideal case the new sink would start playing
2772 * the stream immediately. That requires the sink to
2773 * be able to rewind all of its latency, which usually
2774 * isn't possible, so there will probably be some gap
2775 * before the moved stream becomes audible. We then
2776 * have two possibilities: 1) start playing the stream
2777 * from where it is now, or 2) drop the unrewindable
2778 * latency of the sink from the stream. With option 1
2779 * we won't lose any audio but the stream will have a
2780 * pause. With option 2 we may lose some audio but the
2781 * stream time will be somewhat in sync with the wall
2782 * clock. Lennart seems to have chosen option 2 (one
2783 * of the reasons might have been that option 1 is
2784 * actually much harder to implement), so we drop the
2785 * latency of the new sink from the moved stream and
2786 * hope that the sink will undo most of that in the
2789 /* Get the latency of the sink */
2790 usec = pa_sink_get_latency_within_thread(s, false);
2791 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2794 pa_sink_input_drop(i, nbytes);
2796 pa_log_debug("Requesting rewind due to finished move");
2797 pa_sink_request_rewind(s, nbytes);
2800 /* Updating the requested sink latency has to be done
2801 * after the sink rewind request, not before, because
2802 * otherwise the sink may limit the rewind amount
2805 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2806 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2808 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2809 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2811 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2814 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2815 pa_sink *root_sink = pa_sink_get_master(s);
2817 if (PA_LIKELY(root_sink))
2818 set_shared_volume_within_thread(root_sink);
2823 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2825 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2827 pa_sink_volume_change_push(s);
2829 /* Fall through ... */
2831 case PA_SINK_MESSAGE_SET_VOLUME:
2833 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2834 s->thread_info.soft_volume = s->soft_volume;
2835 pa_sink_request_rewind(s, (size_t) -1);
2838 /* Fall through ... */
2840 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2841 sync_input_volumes_within_thread(s);
2844 case PA_SINK_MESSAGE_GET_VOLUME:
2846 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2848 pa_sink_volume_change_flush(s);
2849 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2852 /* In case sink implementor reset SW volume. */
2853 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2854 s->thread_info.soft_volume = s->soft_volume;
2855 pa_sink_request_rewind(s, (size_t) -1);
2860 case PA_SINK_MESSAGE_SET_MUTE:
2862 if (s->thread_info.soft_muted != s->muted) {
2863 s->thread_info.soft_muted = s->muted;
2864 pa_sink_request_rewind(s, (size_t) -1);
2867 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2872 case PA_SINK_MESSAGE_GET_MUTE:
2874 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2875 return s->get_mute(s, userdata);
2879 case PA_SINK_MESSAGE_SET_STATE: {
2880 struct set_state_data *data = userdata;
2881 bool suspend_change =
2882 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(data->state)) ||
2883 (PA_SINK_IS_OPENED(s->thread_info.state) && data->state == PA_SINK_SUSPENDED);
2885 if (s->set_state_in_io_thread) {
2888 if ((r = s->set_state_in_io_thread(s, data->state, data->suspend_cause)) < 0)
2892 s->thread_info.state = data->state;
2894 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2895 s->thread_info.rewind_nbytes = 0;
2896 s->thread_info.rewind_requested = false;
2899 if (suspend_change) {
2903 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2904 if (i->suspend_within_thread)
2905 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2911 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2913 pa_usec_t *usec = userdata;
2914 *usec = pa_sink_get_requested_latency_within_thread(s);
2916 /* Yes, that's right, the IO thread will see -1 when no
2917 * explicit requested latency is configured, the main
2918 * thread will see max_latency */
2919 if (*usec == (pa_usec_t) -1)
2920 *usec = s->thread_info.max_latency;
2925 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2926 pa_usec_t *r = userdata;
2928 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2933 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2934 pa_usec_t *r = userdata;
2936 r[0] = s->thread_info.min_latency;
2937 r[1] = s->thread_info.max_latency;
2942 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2944 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2947 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2949 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2952 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2954 *((size_t*) userdata) = s->thread_info.max_rewind;
2957 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2959 *((size_t*) userdata) = s->thread_info.max_request;
2962 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2964 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2967 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2969 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2972 case PA_SINK_MESSAGE_SET_PORT:
2974 pa_assert(userdata);
2976 struct sink_message_set_port *msg_data = userdata;
2977 msg_data->ret = s->set_port(s, msg_data->port);
2981 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2982 /* This message is sent from IO-thread and handled in main thread. */
2983 pa_assert_ctl_context();
2985 /* Make sure we're not messing with main thread when no longer linked */
2986 if (!PA_SINK_IS_LINKED(s->state))
2989 pa_sink_get_volume(s, true);
2990 pa_sink_get_mute(s, true);
2993 case PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET:
2994 s->thread_info.port_latency_offset = offset;
2997 case PA_SINK_MESSAGE_GET_LATENCY:
2998 case PA_SINK_MESSAGE_MAX:
3005 /* Called from main thread */
3006 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
3011 pa_core_assert_ref(c);
3012 pa_assert_ctl_context();
3013 pa_assert(cause != 0);
3015 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
3018 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
3025 /* Called from IO thread */
3026 void pa_sink_detach_within_thread(pa_sink *s) {
3030 pa_sink_assert_ref(s);
3031 pa_sink_assert_io_context(s);
3032 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3034 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3035 pa_sink_input_detach(i);
3037 if (s->monitor_source)
3038 pa_source_detach_within_thread(s->monitor_source);
3041 /* Called from IO thread */
3042 void pa_sink_attach_within_thread(pa_sink *s) {
3046 pa_sink_assert_ref(s);
3047 pa_sink_assert_io_context(s);
3048 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3050 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3051 pa_sink_input_attach(i);
3053 if (s->monitor_source)
3054 pa_source_attach_within_thread(s->monitor_source);
3057 /* Called from IO thread */
3058 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3059 pa_sink_assert_ref(s);
3060 pa_sink_assert_io_context(s);
3061 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3063 if (nbytes == (size_t) -1)
3064 nbytes = s->thread_info.max_rewind;
3066 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3068 if (s->thread_info.rewind_requested &&
3069 nbytes <= s->thread_info.rewind_nbytes)
3072 s->thread_info.rewind_nbytes = nbytes;
3073 s->thread_info.rewind_requested = true;
3075 if (s->request_rewind)
3076 s->request_rewind(s);
3079 /* Called from IO thread */
3080 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3081 pa_usec_t result = (pa_usec_t) -1;
3084 pa_usec_t monitor_latency;
3086 pa_sink_assert_ref(s);
3087 pa_sink_assert_io_context(s);
3089 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3090 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3092 if (s->thread_info.requested_latency_valid)
3093 return s->thread_info.requested_latency;
3095 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3096 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3097 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3098 result = i->thread_info.requested_sink_latency;
3100 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3102 if (monitor_latency != (pa_usec_t) -1 &&
3103 (result == (pa_usec_t) -1 || result > monitor_latency))
3104 result = monitor_latency;
3106 if (result != (pa_usec_t) -1)
3107 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3109 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3110 /* Only cache if properly initialized */
3111 s->thread_info.requested_latency = result;
3112 s->thread_info.requested_latency_valid = true;
3118 /* Called from main thread */
3119 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3122 pa_sink_assert_ref(s);
3123 pa_assert_ctl_context();
3124 pa_assert(PA_SINK_IS_LINKED(s->state));
3126 if (s->state == PA_SINK_SUSPENDED)
3129 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3134 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3135 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3139 pa_sink_assert_ref(s);
3140 pa_sink_assert_io_context(s);
3142 if (max_rewind == s->thread_info.max_rewind)
3145 s->thread_info.max_rewind = max_rewind;
3147 if (PA_SINK_IS_LINKED(s->thread_info.state))
3148 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3149 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3151 if (s->monitor_source)
3152 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3155 /* Called from main thread */
3156 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3157 pa_sink_assert_ref(s);
3158 pa_assert_ctl_context();
3160 if (PA_SINK_IS_LINKED(s->state))
3161 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3163 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3166 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3167 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3170 pa_sink_assert_ref(s);
3171 pa_sink_assert_io_context(s);
3173 if (max_request == s->thread_info.max_request)
3176 s->thread_info.max_request = max_request;
3178 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3181 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3182 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3186 /* Called from main thread */
3187 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3188 pa_sink_assert_ref(s);
3189 pa_assert_ctl_context();
3191 if (PA_SINK_IS_LINKED(s->state))
3192 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3194 pa_sink_set_max_request_within_thread(s, max_request);
3197 /* Called from IO thread */
3198 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3202 pa_sink_assert_ref(s);
3203 pa_sink_assert_io_context(s);
3205 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3206 s->thread_info.requested_latency_valid = false;
3210 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3212 if (s->update_requested_latency)
3213 s->update_requested_latency(s);
3215 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3216 if (i->update_sink_requested_latency)
3217 i->update_sink_requested_latency(i);
3221 /* Called from main thread */
3222 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3223 pa_sink_assert_ref(s);
3224 pa_assert_ctl_context();
3226 /* min_latency == 0: no limit
3227 * min_latency anything else: specified limit
3229 * Similar for max_latency */
3231 if (min_latency < ABSOLUTE_MIN_LATENCY)
3232 min_latency = ABSOLUTE_MIN_LATENCY;
3234 if (max_latency <= 0 ||
3235 max_latency > ABSOLUTE_MAX_LATENCY)
3236 max_latency = ABSOLUTE_MAX_LATENCY;
3238 pa_assert(min_latency <= max_latency);
3240 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3241 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3242 max_latency == ABSOLUTE_MAX_LATENCY) ||
3243 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3245 if (PA_SINK_IS_LINKED(s->state)) {
3251 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3253 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3256 /* Called from main thread */
3257 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3258 pa_sink_assert_ref(s);
3259 pa_assert_ctl_context();
3260 pa_assert(min_latency);
3261 pa_assert(max_latency);
3263 if (PA_SINK_IS_LINKED(s->state)) {
3264 pa_usec_t r[2] = { 0, 0 };
3266 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3268 *min_latency = r[0];
3269 *max_latency = r[1];
3271 *min_latency = s->thread_info.min_latency;
3272 *max_latency = s->thread_info.max_latency;
3276 /* Called from IO thread */
3277 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3278 pa_sink_assert_ref(s);
3279 pa_sink_assert_io_context(s);
3281 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3282 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3283 pa_assert(min_latency <= max_latency);
3285 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3286 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3287 max_latency == ABSOLUTE_MAX_LATENCY) ||
3288 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3290 if (s->thread_info.min_latency == min_latency &&
3291 s->thread_info.max_latency == max_latency)
3294 s->thread_info.min_latency = min_latency;
3295 s->thread_info.max_latency = max_latency;
3297 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3301 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3302 if (i->update_sink_latency_range)
3303 i->update_sink_latency_range(i);
3306 pa_sink_invalidate_requested_latency(s, false);
3308 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3311 /* Called from main thread */
3312 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3313 pa_sink_assert_ref(s);
3314 pa_assert_ctl_context();
3316 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3317 pa_assert(latency == 0);
3321 if (latency < ABSOLUTE_MIN_LATENCY)
3322 latency = ABSOLUTE_MIN_LATENCY;
3324 if (latency > ABSOLUTE_MAX_LATENCY)
3325 latency = ABSOLUTE_MAX_LATENCY;
3327 if (PA_SINK_IS_LINKED(s->state))
3328 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3330 s->thread_info.fixed_latency = latency;
3332 pa_source_set_fixed_latency(s->monitor_source, latency);
3335 /* Called from main thread */
3336 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3339 pa_sink_assert_ref(s);
3340 pa_assert_ctl_context();
3342 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3345 if (PA_SINK_IS_LINKED(s->state))
3346 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3348 latency = s->thread_info.fixed_latency;
3353 /* Called from IO thread */
3354 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3355 pa_sink_assert_ref(s);
3356 pa_sink_assert_io_context(s);
3358 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3359 pa_assert(latency == 0);
3360 s->thread_info.fixed_latency = 0;
3362 if (s->monitor_source)
3363 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3368 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3369 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3371 if (s->thread_info.fixed_latency == latency)
3374 s->thread_info.fixed_latency = latency;
3376 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3380 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3381 if (i->update_sink_fixed_latency)
3382 i->update_sink_fixed_latency(i);
3385 pa_sink_invalidate_requested_latency(s, false);
3387 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3390 /* Called from main context */
3391 void pa_sink_set_port_latency_offset(pa_sink *s, int64_t offset) {
3392 pa_sink_assert_ref(s);
3394 s->port_latency_offset = offset;
3396 if (PA_SINK_IS_LINKED(s->state))
3397 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3399 s->thread_info.port_latency_offset = offset;
3401 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_LATENCY_OFFSET_CHANGED], s);
3404 /* Called from main context */
3405 size_t pa_sink_get_max_rewind(pa_sink *s) {
3407 pa_assert_ctl_context();
3408 pa_sink_assert_ref(s);
3410 if (!PA_SINK_IS_LINKED(s->state))
3411 return s->thread_info.max_rewind;
3413 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3418 /* Called from main context */
3419 size_t pa_sink_get_max_request(pa_sink *s) {
3421 pa_sink_assert_ref(s);
3422 pa_assert_ctl_context();
3424 if (!PA_SINK_IS_LINKED(s->state))
3425 return s->thread_info.max_request;
3427 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3432 /* Called from main context */
3433 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3434 pa_device_port *port;
3437 pa_sink_assert_ref(s);
3438 pa_assert_ctl_context();
3441 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3442 return -PA_ERR_NOTIMPLEMENTED;
3446 return -PA_ERR_NOENTITY;
3448 if (!(port = pa_hashmap_get(s->ports, name)))
3449 return -PA_ERR_NOENTITY;
3451 if (s->active_port == port) {
3452 s->save_port = s->save_port || save;
3456 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3457 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3458 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3462 ret = s->set_port(s, port);
3465 return -PA_ERR_NOENTITY;
3467 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3469 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3471 s->active_port = port;
3472 s->save_port = save;
3474 pa_sink_set_port_latency_offset(s, s->active_port->latency_offset);
3476 /* The active port affects the default sink selection. */
3477 pa_core_update_default_sink(s->core);
3479 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3484 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3485 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3489 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3492 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3494 if (pa_streq(ff, "microphone"))
3495 t = "audio-input-microphone";
3496 else if (pa_streq(ff, "webcam"))
3498 else if (pa_streq(ff, "computer"))
3500 else if (pa_streq(ff, "handset"))
3502 else if (pa_streq(ff, "portable"))
3503 t = "multimedia-player";
3504 else if (pa_streq(ff, "tv"))
3505 t = "video-display";
3508 * The following icons are not part of the icon naming spec,
3509 * because Rodney Dawes sucks as the maintainer of that spec.
3511 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3513 else if (pa_streq(ff, "headset"))
3514 t = "audio-headset";
3515 else if (pa_streq(ff, "headphone"))
3516 t = "audio-headphones";
3517 else if (pa_streq(ff, "speaker"))
3518 t = "audio-speakers";
3519 else if (pa_streq(ff, "hands-free"))
3520 t = "audio-handsfree";
3524 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3525 if (pa_streq(c, "modem"))
3532 t = "audio-input-microphone";
3535 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3536 if (strstr(profile, "analog"))
3538 else if (strstr(profile, "iec958"))
3540 else if (strstr(profile, "hdmi"))
3544 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3546 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3551 bool pa_device_init_description(pa_proplist *p, pa_card *card) {
3552 const char *s, *d = NULL, *k;
3555 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3559 if ((s = pa_proplist_gets(card->proplist, PA_PROP_DEVICE_DESCRIPTION)))
3563 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3564 if (pa_streq(s, "internal"))
3565 d = _("Built-in Audio");
3568 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3569 if (pa_streq(s, "modem"))
3573 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3578 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3581 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3583 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3588 bool pa_device_init_intended_roles(pa_proplist *p) {
3592 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3595 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3596 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3597 || pa_streq(s, "headset")) {
3598 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3605 unsigned pa_device_init_priority(pa_proplist *p) {
3607 unsigned priority = 0;
3611 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3613 if (pa_streq(s, "sound"))
3615 else if (!pa_streq(s, "modem"))
3619 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3621 if (pa_streq(s, "headphone"))
3623 else if (pa_streq(s, "hifi"))
3625 else if (pa_streq(s, "speaker"))
3627 else if (pa_streq(s, "portable"))
3631 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3633 if (pa_streq(s, "bluetooth"))
3635 else if (pa_streq(s, "usb"))
3637 else if (pa_streq(s, "pci"))
3641 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3643 if (pa_startswith(s, "analog-"))
3645 else if (pa_startswith(s, "iec958-"))
3652 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3654 /* Called from the IO thread. */
3655 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3656 pa_sink_volume_change *c;
3657 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3658 c = pa_xnew(pa_sink_volume_change, 1);
3660 PA_LLIST_INIT(pa_sink_volume_change, c);
3662 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3666 /* Called from the IO thread. */
3667 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3669 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3673 /* Called from the IO thread. */
3674 void pa_sink_volume_change_push(pa_sink *s) {
3675 pa_sink_volume_change *c = NULL;
3676 pa_sink_volume_change *nc = NULL;
3677 pa_sink_volume_change *pc = NULL;
3678 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3680 const char *direction = NULL;
3683 nc = pa_sink_volume_change_new(s);
3685 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3686 * Adding one more volume for HW would get us rid of this, but I am trying
3687 * to survive with the ones we already have. */
3688 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3690 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3691 pa_log_debug("Volume not changing");
3692 pa_sink_volume_change_free(nc);
3696 nc->at = pa_sink_get_latency_within_thread(s, false);
3697 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3699 if (s->thread_info.volume_changes_tail) {
3700 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3701 /* If volume is going up let's do it a bit late. If it is going
3702 * down let's do it a bit early. */
3703 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3704 if (nc->at + safety_margin > c->at) {
3705 nc->at += safety_margin;
3710 else if (nc->at - safety_margin > c->at) {
3711 nc->at -= safety_margin;
3719 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3720 nc->at += safety_margin;
3723 nc->at -= safety_margin;
3726 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3729 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3732 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3734 /* We can ignore volume events that came earlier but should happen later than this. */
3735 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
3736 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3737 pa_sink_volume_change_free(c);
3740 s->thread_info.volume_changes_tail = nc;
3743 /* Called from the IO thread. */
3744 static void pa_sink_volume_change_flush(pa_sink *s) {
3745 pa_sink_volume_change *c = s->thread_info.volume_changes;
3747 s->thread_info.volume_changes = NULL;
3748 s->thread_info.volume_changes_tail = NULL;
3750 pa_sink_volume_change *next = c->next;
3751 pa_sink_volume_change_free(c);
3756 /* Called from the IO thread. */
3757 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3763 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3769 pa_assert(s->write_volume);
3771 now = pa_rtclock_now();
3773 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3774 pa_sink_volume_change *c = s->thread_info.volume_changes;
3775 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3776 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3777 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3779 s->thread_info.current_hw_volume = c->hw_volume;
3780 pa_sink_volume_change_free(c);
3786 if (s->thread_info.volume_changes) {
3788 *usec_to_next = s->thread_info.volume_changes->at - now;
3789 if (pa_log_ratelimit(PA_LOG_DEBUG))
3790 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3795 s->thread_info.volume_changes_tail = NULL;
3800 /* Called from the IO thread. */
3801 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3802 /* All the queued volume events later than current latency are shifted to happen earlier. */
3803 pa_sink_volume_change *c;
3804 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3805 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3806 pa_usec_t limit = pa_sink_get_latency_within_thread(s, false);
3808 pa_log_debug("latency = %lld", (long long) limit);
3809 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3811 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3812 pa_usec_t modified_limit = limit;
3813 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3814 modified_limit -= s->thread_info.volume_change_safety_margin;
3816 modified_limit += s->thread_info.volume_change_safety_margin;
3817 if (c->at > modified_limit) {
3819 if (c->at < modified_limit)
3820 c->at = modified_limit;
3822 prev_vol = pa_cvolume_avg(&c->hw_volume);
3824 pa_sink_volume_change_apply(s, NULL);
3827 /* Called from the main thread */
3828 /* Gets the list of formats supported by the sink. The members and idxset must
3829 * be freed by the caller. */
3830 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3835 if (s->get_formats) {
3836 /* Sink supports format query, all is good */
3837 ret = s->get_formats(s);
3839 /* Sink doesn't support format query, so assume it does PCM */
3840 pa_format_info *f = pa_format_info_new();
3841 f->encoding = PA_ENCODING_PCM;
3843 ret = pa_idxset_new(NULL, NULL);
3844 pa_idxset_put(ret, f, NULL);
3850 /* Called from the main thread */
3851 /* Allows an external source to set what formats a sink supports if the sink
3852 * permits this. The function makes a copy of the formats on success. */
3853 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3858 /* Sink supports setting formats -- let's give it a shot */
3859 return s->set_formats(s, formats);
3861 /* Sink doesn't support setting this -- bail out */
3865 /* Called from the main thread */
3866 /* Checks if the sink can accept this format */
3867 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3868 pa_idxset *formats = NULL;
3874 formats = pa_sink_get_formats(s);
3877 pa_format_info *finfo_device;
3880 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3881 if (pa_format_info_is_compatible(finfo_device, f)) {
3887 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3893 /* Called from the main thread */
3894 /* Calculates the intersection between formats supported by the sink and
3895 * in_formats, and returns these, in the order of the sink's formats. */
3896 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3897 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3898 pa_format_info *f_sink, *f_in;
3903 if (!in_formats || pa_idxset_isempty(in_formats))
3906 sink_formats = pa_sink_get_formats(s);
3908 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3909 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3910 if (pa_format_info_is_compatible(f_sink, f_in))
3911 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3917 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);
3922 /* Called from the main thread. */
3923 void pa_sink_set_reference_volume_direct(pa_sink *s, const pa_cvolume *volume) {
3924 pa_cvolume old_volume;
3925 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3926 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
3931 old_volume = s->reference_volume;
3933 if (pa_cvolume_equal(volume, &old_volume))
3936 s->reference_volume = *volume;
3937 pa_log_debug("The reference volume of sink %s changed from %s to %s.", s->name,
3938 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
3939 s->flags & PA_SINK_DECIBEL_VOLUME),
3940 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
3941 s->flags & PA_SINK_DECIBEL_VOLUME));
3943 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3944 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_VOLUME_CHANGED], s);