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, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/introspect.h>
32 #include <pulse/format.h>
33 #include <pulse/utf8.h>
34 #include <pulse/xmalloc.h>
35 #include <pulse/timeval.h>
36 #include <pulse/util.h>
37 #include <pulse/rtclock.h>
38 #include <pulse/internal.h>
40 #include <pulsecore/i18n.h>
41 #include <pulsecore/sink-input.h>
42 #include <pulsecore/namereg.h>
43 #include <pulsecore/core-util.h>
44 #include <pulsecore/sample-util.h>
45 #include <pulsecore/mix.h>
46 #include <pulsecore/core-subscribe.h>
47 #include <pulsecore/log.h>
48 #include <pulsecore/macro.h>
49 #include <pulsecore/play-memblockq.h>
50 #include <pulsecore/flist.h>
54 #define MAX_MIX_CHANNELS 32
55 #define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
56 #define ABSOLUTE_MIN_LATENCY (500)
57 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
58 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
60 PA_DEFINE_PUBLIC_CLASS(pa_sink, pa_msgobject);
62 struct pa_sink_volume_change {
66 PA_LLIST_FIELDS(pa_sink_volume_change);
69 struct sink_message_set_port {
74 static void sink_free(pa_object *s);
76 static void pa_sink_volume_change_push(pa_sink *s);
77 static void pa_sink_volume_change_flush(pa_sink *s);
78 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes);
80 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
84 data->proplist = pa_proplist_new();
85 data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
90 void pa_sink_new_data_set_name(pa_sink_new_data *data, const char *name) {
94 data->name = pa_xstrdup(name);
97 void pa_sink_new_data_set_sample_spec(pa_sink_new_data *data, const pa_sample_spec *spec) {
100 if ((data->sample_spec_is_set = !!spec))
101 data->sample_spec = *spec;
104 void pa_sink_new_data_set_channel_map(pa_sink_new_data *data, const pa_channel_map *map) {
107 if ((data->channel_map_is_set = !!map))
108 data->channel_map = *map;
111 void pa_sink_new_data_set_alternate_sample_rate(pa_sink_new_data *data, const uint32_t alternate_sample_rate) {
114 data->alternate_sample_rate_is_set = TRUE;
115 data->alternate_sample_rate = alternate_sample_rate;
118 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
121 if ((data->volume_is_set = !!volume))
122 data->volume = *volume;
125 void pa_sink_new_data_set_muted(pa_sink_new_data *data, pa_bool_t mute) {
128 data->muted_is_set = TRUE;
129 data->muted = !!mute;
132 void pa_sink_new_data_set_port(pa_sink_new_data *data, const char *port) {
135 pa_xfree(data->active_port);
136 data->active_port = pa_xstrdup(port);
139 void pa_sink_new_data_done(pa_sink_new_data *data) {
142 pa_proplist_free(data->proplist);
145 pa_hashmap_free(data->ports, (pa_free_cb_t) pa_device_port_unref);
147 pa_xfree(data->name);
148 pa_xfree(data->active_port);
152 /* Called from main context */
153 static void reset_callbacks(pa_sink *s) {
157 s->get_volume = NULL;
158 s->set_volume = NULL;
159 s->write_volume = NULL;
162 s->request_rewind = NULL;
163 s->update_requested_latency = NULL;
165 s->get_formats = NULL;
166 s->set_formats = NULL;
167 s->update_rate = NULL;
170 /* Called from main context */
171 pa_sink* pa_sink_new(
173 pa_sink_new_data *data,
174 pa_sink_flags_t flags) {
178 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
179 pa_source_new_data source_data;
185 pa_assert(data->name);
186 pa_assert_ctl_context();
188 s = pa_msgobject_new(pa_sink);
190 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
191 pa_log_debug("Failed to register name %s.", data->name);
196 pa_sink_new_data_set_name(data, name);
198 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
200 pa_namereg_unregister(core, name);
204 /* FIXME, need to free s here on failure */
206 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
207 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
209 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
211 if (!data->channel_map_is_set)
212 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
214 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
215 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
217 /* FIXME: There should probably be a general function for checking whether
218 * the sink volume is allowed to be set, like there is for sink inputs. */
219 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
221 if (!data->volume_is_set) {
222 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
223 data->save_volume = FALSE;
226 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
227 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
229 if (!data->muted_is_set)
233 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
235 pa_device_init_description(data->proplist);
236 pa_device_init_icon(data->proplist, TRUE);
237 pa_device_init_intended_roles(data->proplist);
239 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
241 pa_namereg_unregister(core, name);
245 s->parent.parent.free = sink_free;
246 s->parent.process_msg = pa_sink_process_msg;
249 s->state = PA_SINK_INIT;
252 s->suspend_cause = data->suspend_cause;
253 pa_sink_set_mixer_dirty(s, FALSE);
254 s->name = pa_xstrdup(name);
255 s->proplist = pa_proplist_copy(data->proplist);
256 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
257 s->module = data->module;
258 s->card = data->card;
260 s->priority = pa_device_init_priority(s->proplist);
262 s->sample_spec = data->sample_spec;
263 s->channel_map = data->channel_map;
264 s->default_sample_rate = s->sample_spec.rate;
266 if (data->alternate_sample_rate_is_set)
267 s->alternate_sample_rate = data->alternate_sample_rate;
269 s->alternate_sample_rate = s->core->alternate_sample_rate;
271 if (s->sample_spec.rate == s->alternate_sample_rate) {
272 pa_log_warn("Default and alternate sample rates are the same.");
273 s->alternate_sample_rate = 0;
276 s->inputs = pa_idxset_new(NULL, NULL);
278 s->input_to_master = NULL;
280 s->reference_volume = s->real_volume = data->volume;
281 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
282 s->base_volume = PA_VOLUME_NORM;
283 s->n_volume_steps = PA_VOLUME_NORM+1;
284 s->muted = data->muted;
285 s->refresh_volume = s->refresh_muted = FALSE;
292 /* As a minor optimization we just steal the list instead of
294 s->ports = data->ports;
297 s->active_port = NULL;
298 s->save_port = FALSE;
300 if (data->active_port)
301 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
302 s->save_port = data->save_port;
304 if (!s->active_port) {
308 PA_HASHMAP_FOREACH(p, s->ports, state)
309 if (!s->active_port || p->priority > s->active_port->priority)
314 s->latency_offset = s->active_port->latency_offset;
316 s->latency_offset = 0;
318 s->save_volume = data->save_volume;
319 s->save_muted = data->save_muted;
321 pa_silence_memchunk_get(
322 &core->silence_cache,
328 s->thread_info.rtpoll = NULL;
329 s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
330 s->thread_info.soft_volume = s->soft_volume;
331 s->thread_info.soft_muted = s->muted;
332 s->thread_info.state = s->state;
333 s->thread_info.rewind_nbytes = 0;
334 s->thread_info.rewind_requested = FALSE;
335 s->thread_info.max_rewind = 0;
336 s->thread_info.max_request = 0;
337 s->thread_info.requested_latency_valid = FALSE;
338 s->thread_info.requested_latency = 0;
339 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
340 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
341 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
343 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
344 s->thread_info.volume_changes_tail = NULL;
345 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
346 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
347 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
348 s->thread_info.latency_offset = s->latency_offset;
350 /* FIXME: This should probably be moved to pa_sink_put() */
351 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
354 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
356 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
357 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
360 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
361 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
365 pa_source_new_data_init(&source_data);
366 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
367 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
368 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
369 source_data.name = pa_sprintf_malloc("%s.monitor", name);
370 source_data.driver = data->driver;
371 source_data.module = data->module;
372 source_data.card = data->card;
374 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
375 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
376 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
378 s->monitor_source = pa_source_new(core, &source_data,
379 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
380 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
382 pa_source_new_data_done(&source_data);
384 if (!s->monitor_source) {
390 s->monitor_source->monitor_of = s;
392 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
393 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
394 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
399 /* Called from main context */
400 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
402 pa_bool_t suspend_change;
403 pa_sink_state_t original_state;
406 pa_assert_ctl_context();
408 if (s->state == state)
411 original_state = s->state;
414 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
415 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
418 if ((ret = s->set_state(s, state)) < 0)
422 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
425 s->set_state(s, original_state);
432 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
433 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
434 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
437 if (suspend_change) {
441 /* We're suspending or resuming, tell everyone about it */
443 PA_IDXSET_FOREACH(i, s->inputs, idx)
444 if (s->state == PA_SINK_SUSPENDED &&
445 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
446 pa_sink_input_kill(i);
448 i->suspend(i, state == PA_SINK_SUSPENDED);
450 if (s->monitor_source)
451 pa_source_sync_suspend(s->monitor_source);
457 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
463 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
464 pa_sink_flags_t flags;
467 pa_assert(!s->write_volume || cb);
471 /* Save the current flags so we can tell if they've changed */
475 /* The sink implementor is responsible for setting decibel volume support */
476 s->flags |= PA_SINK_HW_VOLUME_CTRL;
478 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
479 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
480 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
483 /* If the flags have changed after init, let any clients know via a change event */
484 if (s->state != PA_SINK_INIT && flags != s->flags)
485 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
488 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
489 pa_sink_flags_t flags;
492 pa_assert(!cb || s->set_volume);
494 s->write_volume = cb;
496 /* Save the current flags so we can tell if they've changed */
500 s->flags |= PA_SINK_DEFERRED_VOLUME;
502 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
504 /* If the flags have changed after init, let any clients know via a change event */
505 if (s->state != PA_SINK_INIT && flags != s->flags)
506 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
509 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
515 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
516 pa_sink_flags_t flags;
522 /* Save the current flags so we can tell if they've changed */
526 s->flags |= PA_SINK_HW_MUTE_CTRL;
528 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
530 /* If the flags have changed after init, let any clients know via a change event */
531 if (s->state != PA_SINK_INIT && flags != s->flags)
532 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
535 static void enable_flat_volume(pa_sink *s, pa_bool_t enable) {
536 pa_sink_flags_t flags;
540 /* Always follow the overall user preference here */
541 enable = enable && s->core->flat_volumes;
543 /* Save the current flags so we can tell if they've changed */
547 s->flags |= PA_SINK_FLAT_VOLUME;
549 s->flags &= ~PA_SINK_FLAT_VOLUME;
551 /* If the flags have changed after init, let any clients know via a change event */
552 if (s->state != PA_SINK_INIT && flags != s->flags)
553 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
556 void pa_sink_enable_decibel_volume(pa_sink *s, pa_bool_t enable) {
557 pa_sink_flags_t flags;
561 /* Save the current flags so we can tell if they've changed */
565 s->flags |= PA_SINK_DECIBEL_VOLUME;
566 enable_flat_volume(s, TRUE);
568 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
569 enable_flat_volume(s, FALSE);
572 /* If the flags have changed after init, let any clients know via a change event */
573 if (s->state != PA_SINK_INIT && flags != s->flags)
574 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
577 /* Called from main context */
578 void pa_sink_put(pa_sink* s) {
579 pa_sink_assert_ref(s);
580 pa_assert_ctl_context();
582 pa_assert(s->state == PA_SINK_INIT);
583 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || s->input_to_master);
585 /* The following fields must be initialized properly when calling _put() */
586 pa_assert(s->asyncmsgq);
587 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
589 /* Generally, flags should be initialized via pa_sink_new(). As a
590 * special exception we allow some volume related flags to be set
591 * between _new() and _put() by the callback setter functions above.
593 * Thus we implement a couple safeguards here which ensure the above
594 * setters were used (or at least the implementor made manual changes
595 * in a compatible way).
597 * Note: All of these flags set here can change over the life time
599 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
600 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
601 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
603 /* XXX: Currently decibel volume is disabled for all sinks that use volume
604 * sharing. When the master sink supports decibel volume, it would be good
605 * to have the flag also in the filter sink, but currently we don't do that
606 * so that the flags of the filter sink never change when it's moved from
607 * a master sink to another. One solution for this problem would be to
608 * remove user-visible volume altogether from filter sinks when volume
609 * sharing is used, but the current approach was easier to implement... */
610 /* We always support decibel volumes in software, otherwise we leave it to
611 * the sink implementor to set this flag as needed.
613 * Note: This flag can also change over the life time of the sink. */
614 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
615 pa_sink_enable_decibel_volume(s, TRUE);
617 /* If the sink implementor support DB volumes by itself, we should always
618 * try and enable flat volumes too */
619 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
620 enable_flat_volume(s, TRUE);
622 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
623 pa_sink *root_sink = pa_sink_get_master(s);
625 pa_assert(root_sink);
627 s->reference_volume = root_sink->reference_volume;
628 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
630 s->real_volume = root_sink->real_volume;
631 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
633 /* We assume that if the sink implementor changed the default
634 * volume he did so in real_volume, because that is the usual
635 * place where he is supposed to place his changes. */
636 s->reference_volume = s->real_volume;
638 s->thread_info.soft_volume = s->soft_volume;
639 s->thread_info.soft_muted = s->muted;
640 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
642 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
643 || (s->base_volume == PA_VOLUME_NORM
644 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
645 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
646 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
647 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
648 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
650 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
651 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
652 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
654 if (s->suspend_cause)
655 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED) == 0);
657 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
659 pa_source_put(s->monitor_source);
661 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
662 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
665 /* Called from main context */
666 void pa_sink_unlink(pa_sink* s) {
668 pa_sink_input *i, *j = NULL;
671 pa_assert_ctl_context();
673 /* Please note that pa_sink_unlink() does more than simply
674 * reversing pa_sink_put(). It also undoes the registrations
675 * already done in pa_sink_new()! */
677 /* All operations here shall be idempotent, i.e. pa_sink_unlink()
678 * may be called multiple times on the same sink without bad
681 linked = PA_SINK_IS_LINKED(s->state);
684 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
686 if (s->state != PA_SINK_UNLINKED)
687 pa_namereg_unregister(s->core, s->name);
688 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
691 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
693 while ((i = pa_idxset_first(s->inputs, NULL))) {
695 pa_sink_input_kill(i);
700 sink_set_state(s, PA_SINK_UNLINKED);
702 s->state = PA_SINK_UNLINKED;
706 if (s->monitor_source)
707 pa_source_unlink(s->monitor_source);
710 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
711 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
715 /* Called from main context */
716 static void sink_free(pa_object *o) {
717 pa_sink *s = PA_SINK(o);
720 pa_assert_ctl_context();
721 pa_assert(pa_sink_refcnt(s) == 0);
723 if (PA_SINK_IS_LINKED(s->state))
726 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
728 if (s->monitor_source) {
729 pa_source_unref(s->monitor_source);
730 s->monitor_source = NULL;
733 pa_idxset_free(s->inputs, NULL);
734 pa_hashmap_free(s->thread_info.inputs, (pa_free_cb_t) pa_sink_input_unref);
736 if (s->silence.memblock)
737 pa_memblock_unref(s->silence.memblock);
743 pa_proplist_free(s->proplist);
746 pa_hashmap_free(s->ports, (pa_free_cb_t) pa_device_port_unref);
751 /* Called from main context, and not while the IO thread is active, please */
752 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
753 pa_sink_assert_ref(s);
754 pa_assert_ctl_context();
758 if (s->monitor_source)
759 pa_source_set_asyncmsgq(s->monitor_source, q);
762 /* Called from main context, and not while the IO thread is active, please */
763 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
764 pa_sink_flags_t old_flags;
765 pa_sink_input *input;
768 pa_sink_assert_ref(s);
769 pa_assert_ctl_context();
771 /* For now, allow only a minimal set of flags to be changed. */
772 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
774 old_flags = s->flags;
775 s->flags = (s->flags & ~mask) | (value & mask);
777 if (s->flags == old_flags)
780 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
781 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
783 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
784 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
785 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
787 if (s->monitor_source)
788 pa_source_update_flags(s->monitor_source,
789 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
790 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
791 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
792 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
794 PA_IDXSET_FOREACH(input, s->inputs, idx) {
795 if (input->origin_sink)
796 pa_sink_update_flags(input->origin_sink, mask, value);
800 /* Called from IO context, or before _put() from main context */
801 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
802 pa_sink_assert_ref(s);
803 pa_sink_assert_io_context(s);
805 s->thread_info.rtpoll = p;
807 if (s->monitor_source)
808 pa_source_set_rtpoll(s->monitor_source, p);
811 /* Called from main context */
812 int pa_sink_update_status(pa_sink*s) {
813 pa_sink_assert_ref(s);
814 pa_assert_ctl_context();
815 pa_assert(PA_SINK_IS_LINKED(s->state));
817 if (s->state == PA_SINK_SUSPENDED)
820 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
823 /* Called from any context - must be threadsafe */
824 void pa_sink_set_mixer_dirty(pa_sink *s, pa_bool_t is_dirty)
826 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
829 /* Called from main context */
830 int pa_sink_suspend(pa_sink *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
831 pa_sink_assert_ref(s);
832 pa_assert_ctl_context();
833 pa_assert(PA_SINK_IS_LINKED(s->state));
834 pa_assert(cause != 0);
837 s->suspend_cause |= cause;
838 s->monitor_source->suspend_cause |= cause;
840 s->suspend_cause &= ~cause;
841 s->monitor_source->suspend_cause &= ~cause;
844 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
845 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
846 it'll be handled just fine. */
847 pa_sink_set_mixer_dirty(s, FALSE);
848 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
849 if (s->active_port && s->set_port) {
850 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
851 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
852 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
855 s->set_port(s, s->active_port);
865 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
868 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
870 if (s->suspend_cause)
871 return sink_set_state(s, PA_SINK_SUSPENDED);
873 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
876 /* Called from main context */
877 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
878 pa_sink_input *i, *n;
881 pa_sink_assert_ref(s);
882 pa_assert_ctl_context();
883 pa_assert(PA_SINK_IS_LINKED(s->state));
888 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
889 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
891 pa_sink_input_ref(i);
893 if (pa_sink_input_start_move(i) >= 0)
896 pa_sink_input_unref(i);
902 /* Called from main context */
903 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, pa_bool_t save) {
906 pa_sink_assert_ref(s);
907 pa_assert_ctl_context();
908 pa_assert(PA_SINK_IS_LINKED(s->state));
911 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
912 if (pa_sink_input_finish_move(i, s, save) < 0)
913 pa_sink_input_fail_move(i);
915 pa_sink_input_unref(i);
918 pa_queue_free(q, NULL);
921 /* Called from main context */
922 void pa_sink_move_all_fail(pa_queue *q) {
925 pa_assert_ctl_context();
928 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
929 pa_sink_input_fail_move(i);
930 pa_sink_input_unref(i);
933 pa_queue_free(q, NULL);
936 /* Called from IO thread context */
937 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
942 pa_sink_assert_ref(s);
943 pa_sink_assert_io_context(s);
945 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
946 size_t uf = i->thread_info.underrun_for_sink;
949 if (uf >= left_to_play) {
950 if (pa_sink_input_process_underrun(i))
953 else if (uf > result)
958 pa_log_debug("Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", (long) result, (long) left_to_play - result);
959 return left_to_play - result;
962 /* Called from IO thread context */
963 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
967 pa_sink_assert_ref(s);
968 pa_sink_assert_io_context(s);
969 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
971 /* If nobody requested this and this is actually no real rewind
972 * then we can short cut this. Please note that this means that
973 * not all rewind requests triggered upstream will always be
974 * translated in actual requests! */
975 if (!s->thread_info.rewind_requested && nbytes <= 0)
978 s->thread_info.rewind_nbytes = 0;
979 s->thread_info.rewind_requested = FALSE;
982 pa_log_debug("Processing rewind...");
983 if (s->flags & PA_SINK_DEFERRED_VOLUME)
984 pa_sink_volume_change_rewind(s, nbytes);
987 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
988 pa_sink_input_assert_ref(i);
989 pa_sink_input_process_rewind(i, nbytes);
993 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
994 pa_source_process_rewind(s->monitor_source, nbytes);
998 /* Called from IO thread context */
999 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1003 size_t mixlength = *length;
1005 pa_sink_assert_ref(s);
1006 pa_sink_assert_io_context(s);
1009 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1010 pa_sink_input_assert_ref(i);
1012 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1014 if (mixlength == 0 || info->chunk.length < mixlength)
1015 mixlength = info->chunk.length;
1017 if (pa_memblock_is_silence(info->chunk.memblock)) {
1018 pa_memblock_unref(info->chunk.memblock);
1022 info->userdata = pa_sink_input_ref(i);
1024 pa_assert(info->chunk.memblock);
1025 pa_assert(info->chunk.length > 0);
1033 *length = mixlength;
1038 /* Called from IO thread context */
1039 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1043 unsigned n_unreffed = 0;
1045 pa_sink_assert_ref(s);
1046 pa_sink_assert_io_context(s);
1048 pa_assert(result->memblock);
1049 pa_assert(result->length > 0);
1051 /* We optimize for the case where the order of the inputs has not changed */
1053 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1055 pa_mix_info* m = NULL;
1057 pa_sink_input_assert_ref(i);
1059 /* Let's try to find the matching entry info the pa_mix_info array */
1060 for (j = 0; j < n; j ++) {
1062 if (info[p].userdata == i) {
1072 /* Drop read data */
1073 pa_sink_input_drop(i, result->length);
1075 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1077 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1078 void *ostate = NULL;
1079 pa_source_output *o;
1082 if (m && m->chunk.memblock) {
1084 pa_memblock_ref(c.memblock);
1085 pa_assert(result->length <= c.length);
1086 c.length = result->length;
1088 pa_memchunk_make_writable(&c, 0);
1089 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1092 pa_memblock_ref(c.memblock);
1093 pa_assert(result->length <= c.length);
1094 c.length = result->length;
1097 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1098 pa_source_output_assert_ref(o);
1099 pa_assert(o->direct_on_input == i);
1100 pa_source_post_direct(s->monitor_source, o, &c);
1103 pa_memblock_unref(c.memblock);
1108 if (m->chunk.memblock)
1109 pa_memblock_unref(m->chunk.memblock);
1110 pa_memchunk_reset(&m->chunk);
1112 pa_sink_input_unref(m->userdata);
1119 /* Now drop references to entries that are included in the
1120 * pa_mix_info array but don't exist anymore */
1122 if (n_unreffed < n) {
1123 for (; n > 0; info++, n--) {
1125 pa_sink_input_unref(info->userdata);
1126 if (info->chunk.memblock)
1127 pa_memblock_unref(info->chunk.memblock);
1131 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1132 pa_source_post(s->monitor_source, result);
1135 /* Called from IO thread context */
1136 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1137 pa_mix_info info[MAX_MIX_CHANNELS];
1139 size_t block_size_max;
1141 pa_sink_assert_ref(s);
1142 pa_sink_assert_io_context(s);
1143 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1144 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1147 pa_assert(!s->thread_info.rewind_requested);
1148 pa_assert(s->thread_info.rewind_nbytes == 0);
1150 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1151 result->memblock = pa_memblock_ref(s->silence.memblock);
1152 result->index = s->silence.index;
1153 result->length = PA_MIN(s->silence.length, length);
1160 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1162 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1163 if (length > block_size_max)
1164 length = pa_frame_align(block_size_max, &s->sample_spec);
1166 pa_assert(length > 0);
1168 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1172 *result = s->silence;
1173 pa_memblock_ref(result->memblock);
1175 if (result->length > length)
1176 result->length = length;
1178 } else if (n == 1) {
1181 *result = info[0].chunk;
1182 pa_memblock_ref(result->memblock);
1184 if (result->length > length)
1185 result->length = length;
1187 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1189 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1190 pa_memblock_unref(result->memblock);
1191 pa_silence_memchunk_get(&s->core->silence_cache,
1196 } else if (!pa_cvolume_is_norm(&volume)) {
1197 pa_memchunk_make_writable(result, 0);
1198 pa_volume_memchunk(result, &s->sample_spec, &volume);
1202 result->memblock = pa_memblock_new(s->core->mempool, length);
1204 ptr = pa_memblock_acquire(result->memblock);
1205 result->length = pa_mix(info, n,
1208 &s->thread_info.soft_volume,
1209 s->thread_info.soft_muted);
1210 pa_memblock_release(result->memblock);
1215 inputs_drop(s, info, n, result);
1220 /* Called from IO thread context */
1221 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1222 pa_mix_info info[MAX_MIX_CHANNELS];
1224 size_t length, block_size_max;
1226 pa_sink_assert_ref(s);
1227 pa_sink_assert_io_context(s);
1228 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1230 pa_assert(target->memblock);
1231 pa_assert(target->length > 0);
1232 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1234 pa_assert(!s->thread_info.rewind_requested);
1235 pa_assert(s->thread_info.rewind_nbytes == 0);
1237 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1238 pa_silence_memchunk(target, &s->sample_spec);
1244 length = target->length;
1245 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1246 if (length > block_size_max)
1247 length = pa_frame_align(block_size_max, &s->sample_spec);
1249 pa_assert(length > 0);
1251 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1254 if (target->length > length)
1255 target->length = length;
1257 pa_silence_memchunk(target, &s->sample_spec);
1258 } else if (n == 1) {
1261 if (target->length > length)
1262 target->length = length;
1264 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1266 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1267 pa_silence_memchunk(target, &s->sample_spec);
1271 vchunk = info[0].chunk;
1272 pa_memblock_ref(vchunk.memblock);
1274 if (vchunk.length > length)
1275 vchunk.length = length;
1277 if (!pa_cvolume_is_norm(&volume)) {
1278 pa_memchunk_make_writable(&vchunk, 0);
1279 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1282 pa_memchunk_memcpy(target, &vchunk);
1283 pa_memblock_unref(vchunk.memblock);
1289 ptr = pa_memblock_acquire(target->memblock);
1291 target->length = pa_mix(info, n,
1292 (uint8_t*) ptr + target->index, length,
1294 &s->thread_info.soft_volume,
1295 s->thread_info.soft_muted);
1297 pa_memblock_release(target->memblock);
1300 inputs_drop(s, info, n, target);
1305 /* Called from IO thread context */
1306 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1310 pa_sink_assert_ref(s);
1311 pa_sink_assert_io_context(s);
1312 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1314 pa_assert(target->memblock);
1315 pa_assert(target->length > 0);
1316 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1318 pa_assert(!s->thread_info.rewind_requested);
1319 pa_assert(s->thread_info.rewind_nbytes == 0);
1321 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1322 pa_silence_memchunk(target, &s->sample_spec);
1335 pa_sink_render_into(s, &chunk);
1344 /* Called from IO thread context */
1345 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1346 pa_sink_assert_ref(s);
1347 pa_sink_assert_io_context(s);
1348 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1349 pa_assert(length > 0);
1350 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1353 pa_assert(!s->thread_info.rewind_requested);
1354 pa_assert(s->thread_info.rewind_nbytes == 0);
1358 pa_sink_render(s, length, result);
1360 if (result->length < length) {
1363 pa_memchunk_make_writable(result, length);
1365 chunk.memblock = result->memblock;
1366 chunk.index = result->index + result->length;
1367 chunk.length = length - result->length;
1369 pa_sink_render_into_full(s, &chunk);
1371 result->length = length;
1377 /* Called from main thread */
1378 pa_bool_t pa_sink_update_rate(pa_sink *s, uint32_t rate, pa_bool_t passthrough)
1380 if (s->update_rate) {
1381 uint32_t desired_rate = rate;
1382 uint32_t default_rate = s->default_sample_rate;
1383 uint32_t alternate_rate = s->alternate_sample_rate;
1386 pa_bool_t use_alternate = FALSE;
1388 if (PA_UNLIKELY(default_rate == alternate_rate)) {
1389 pa_log_warn("Default and alternate sample rates are the same.");
1393 if (PA_SINK_IS_RUNNING(s->state)) {
1394 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1395 s->sample_spec.rate);
1399 if (s->monitor_source) {
1400 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == TRUE) {
1401 pa_log_info("Cannot update rate, monitor source is RUNNING");
1406 if (PA_UNLIKELY (desired_rate < 8000 ||
1407 desired_rate > PA_RATE_MAX))
1411 pa_assert(default_rate % 4000 || default_rate % 11025);
1412 pa_assert(alternate_rate % 4000 || alternate_rate % 11025);
1414 if (default_rate % 4000) {
1415 /* default is a 11025 multiple */
1416 if ((alternate_rate % 4000 == 0) && (desired_rate % 4000 == 0))
1419 /* default is 4000 multiple */
1420 if ((alternate_rate % 11025 == 0) && (desired_rate % 11025 == 0))
1425 desired_rate = alternate_rate;
1427 desired_rate = default_rate;
1429 desired_rate = rate; /* use stream sampling rate, discard default/alternate settings */
1432 if (desired_rate == s->sample_spec.rate)
1435 if (!passthrough && pa_sink_used_by(s) > 0)
1438 pa_log_debug("Suspending sink %s due to changing the sample rate.", s->name);
1439 pa_sink_suspend(s, TRUE, PA_SUSPEND_IDLE); /* needed before rate update, will be resumed automatically */
1441 if (s->update_rate(s, desired_rate) == TRUE) {
1442 /* update monitor source as well */
1443 if (s->monitor_source && !passthrough)
1444 pa_source_update_rate(s->monitor_source, desired_rate, FALSE);
1445 pa_log_info("Changed sampling rate successfully");
1447 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1448 if (i->state == PA_SINK_INPUT_CORKED)
1449 pa_sink_input_update_rate(i);
1458 /* Called from main thread */
1459 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1462 pa_sink_assert_ref(s);
1463 pa_assert_ctl_context();
1464 pa_assert(PA_SINK_IS_LINKED(s->state));
1466 /* The returned value is supposed to be in the time domain of the sound card! */
1468 if (s->state == PA_SINK_SUSPENDED)
1471 if (!(s->flags & PA_SINK_LATENCY))
1474 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1476 /* usec is unsigned, so check that the offset can be added to usec without
1478 if (-s->latency_offset <= (int64_t) usec)
1479 usec += s->latency_offset;
1486 /* Called from IO thread */
1487 pa_usec_t pa_sink_get_latency_within_thread(pa_sink *s) {
1491 pa_sink_assert_ref(s);
1492 pa_sink_assert_io_context(s);
1493 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1495 /* The returned value is supposed to be in the time domain of the sound card! */
1497 if (s->thread_info.state == PA_SINK_SUSPENDED)
1500 if (!(s->flags & PA_SINK_LATENCY))
1503 o = PA_MSGOBJECT(s);
1505 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1507 if (o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1510 /* usec is unsigned, so check that the offset can be added to usec without
1512 if (-s->thread_info.latency_offset <= (int64_t) usec)
1513 usec += s->thread_info.latency_offset;
1520 /* Called from the main thread (and also from the IO thread while the main
1521 * thread is waiting).
1523 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1524 * set. Instead, flat volume mode is detected by checking whether the root sink
1525 * has the flag set. */
1526 pa_bool_t pa_sink_flat_volume_enabled(pa_sink *s) {
1527 pa_sink_assert_ref(s);
1529 s = pa_sink_get_master(s);
1532 return (s->flags & PA_SINK_FLAT_VOLUME);
1537 /* Called from the main thread (and also from the IO thread while the main
1538 * thread is waiting). */
1539 pa_sink *pa_sink_get_master(pa_sink *s) {
1540 pa_sink_assert_ref(s);
1542 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1543 if (PA_UNLIKELY(!s->input_to_master))
1546 s = s->input_to_master->sink;
1552 /* Called from main context */
1553 pa_bool_t pa_sink_is_passthrough(pa_sink *s) {
1554 pa_sink_input *alt_i;
1557 pa_sink_assert_ref(s);
1559 /* one and only one PASSTHROUGH input can possibly be connected */
1560 if (pa_idxset_size(s->inputs) == 1) {
1561 alt_i = pa_idxset_first(s->inputs, &idx);
1563 if (pa_sink_input_is_passthrough(alt_i))
1570 /* Called from main context */
1571 void pa_sink_enter_passthrough(pa_sink *s) {
1574 /* disable the monitor in passthrough mode */
1575 if (s->monitor_source) {
1576 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1577 pa_source_suspend(s->monitor_source, TRUE, PA_SUSPEND_PASSTHROUGH);
1580 /* set the volume to NORM */
1581 s->saved_volume = *pa_sink_get_volume(s, TRUE);
1582 s->saved_save_volume = s->save_volume;
1584 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1585 pa_sink_set_volume(s, &volume, TRUE, FALSE);
1588 /* Called from main context */
1589 void pa_sink_leave_passthrough(pa_sink *s) {
1590 /* Unsuspend monitor */
1591 if (s->monitor_source) {
1592 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1593 pa_source_suspend(s->monitor_source, FALSE, PA_SUSPEND_PASSTHROUGH);
1596 /* Restore sink volume to what it was before we entered passthrough mode */
1597 pa_sink_set_volume(s, &s->saved_volume, TRUE, s->saved_save_volume);
1599 pa_cvolume_init(&s->saved_volume);
1600 s->saved_save_volume = FALSE;
1603 /* Called from main context. */
1604 static void compute_reference_ratio(pa_sink_input *i) {
1606 pa_cvolume remapped;
1609 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1612 * Calculates the reference ratio from the sink's reference
1613 * volume. This basically calculates:
1615 * i->reference_ratio = i->volume / i->sink->reference_volume
1618 remapped = i->sink->reference_volume;
1619 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1621 i->reference_ratio.channels = i->sample_spec.channels;
1623 for (c = 0; c < i->sample_spec.channels; c++) {
1625 /* We don't update when the sink volume is 0 anyway */
1626 if (remapped.values[c] <= PA_VOLUME_MUTED)
1629 /* Don't update the reference ratio unless necessary */
1630 if (pa_sw_volume_multiply(
1631 i->reference_ratio.values[c],
1632 remapped.values[c]) == i->volume.values[c])
1635 i->reference_ratio.values[c] = pa_sw_volume_divide(
1636 i->volume.values[c],
1637 remapped.values[c]);
1641 /* Called from main context. Only called for the root sink in volume sharing
1642 * cases, except for internal recursive calls. */
1643 static void compute_reference_ratios(pa_sink *s) {
1647 pa_sink_assert_ref(s);
1648 pa_assert_ctl_context();
1649 pa_assert(PA_SINK_IS_LINKED(s->state));
1650 pa_assert(pa_sink_flat_volume_enabled(s));
1652 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1653 compute_reference_ratio(i);
1655 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1656 compute_reference_ratios(i->origin_sink);
1660 /* Called from main context. Only called for the root sink in volume sharing
1661 * cases, except for internal recursive calls. */
1662 static void compute_real_ratios(pa_sink *s) {
1666 pa_sink_assert_ref(s);
1667 pa_assert_ctl_context();
1668 pa_assert(PA_SINK_IS_LINKED(s->state));
1669 pa_assert(pa_sink_flat_volume_enabled(s));
1671 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1673 pa_cvolume remapped;
1675 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1676 /* The origin sink uses volume sharing, so this input's real ratio
1677 * is handled as a special case - the real ratio must be 0 dB, and
1678 * as a result i->soft_volume must equal i->volume_factor. */
1679 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1680 i->soft_volume = i->volume_factor;
1682 compute_real_ratios(i->origin_sink);
1688 * This basically calculates:
1690 * i->real_ratio := i->volume / s->real_volume
1691 * i->soft_volume := i->real_ratio * i->volume_factor
1694 remapped = s->real_volume;
1695 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1697 i->real_ratio.channels = i->sample_spec.channels;
1698 i->soft_volume.channels = i->sample_spec.channels;
1700 for (c = 0; c < i->sample_spec.channels; c++) {
1702 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1703 /* We leave i->real_ratio untouched */
1704 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1708 /* Don't lose accuracy unless necessary */
1709 if (pa_sw_volume_multiply(
1710 i->real_ratio.values[c],
1711 remapped.values[c]) != i->volume.values[c])
1713 i->real_ratio.values[c] = pa_sw_volume_divide(
1714 i->volume.values[c],
1715 remapped.values[c]);
1717 i->soft_volume.values[c] = pa_sw_volume_multiply(
1718 i->real_ratio.values[c],
1719 i->volume_factor.values[c]);
1722 /* We don't copy the soft_volume to the thread_info data
1723 * here. That must be done by the caller */
1727 static pa_cvolume *cvolume_remap_minimal_impact(
1729 const pa_cvolume *template,
1730 const pa_channel_map *from,
1731 const pa_channel_map *to) {
1736 pa_assert(template);
1739 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1740 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1742 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1743 * mapping from sink input to sink volumes:
1745 * If template is a possible remapping from v it is used instead
1746 * of remapping anew.
1748 * If the channel maps don't match we set an all-channel volume on
1749 * the sink to ensure that changing a volume on one stream has no
1750 * effect that cannot be compensated for in another stream that
1751 * does not have the same channel map as the sink. */
1753 if (pa_channel_map_equal(from, to))
1757 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1762 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1766 /* Called from main thread. Only called for the root sink in volume sharing
1767 * cases, except for internal recursive calls. */
1768 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1772 pa_sink_assert_ref(s);
1773 pa_assert(max_volume);
1774 pa_assert(channel_map);
1775 pa_assert(pa_sink_flat_volume_enabled(s));
1777 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1778 pa_cvolume remapped;
1780 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1781 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1783 /* Ignore this input. The origin sink uses volume sharing, so this
1784 * input's volume will be set to be equal to the root sink's real
1785 * volume. Obviously this input's current volume must not then
1786 * affect what the root sink's real volume will be. */
1790 remapped = i->volume;
1791 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1792 pa_cvolume_merge(max_volume, max_volume, &remapped);
1796 /* Called from main thread. Only called for the root sink in volume sharing
1797 * cases, except for internal recursive calls. */
1798 static pa_bool_t has_inputs(pa_sink *s) {
1802 pa_sink_assert_ref(s);
1804 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1805 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1812 /* Called from main thread. Only called for the root sink in volume sharing
1813 * cases, except for internal recursive calls. */
1814 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1818 pa_sink_assert_ref(s);
1819 pa_assert(new_volume);
1820 pa_assert(channel_map);
1822 s->real_volume = *new_volume;
1823 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1825 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1826 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1827 if (pa_sink_flat_volume_enabled(s)) {
1828 pa_cvolume old_volume = i->volume;
1830 /* Follow the root sink's real volume. */
1831 i->volume = *new_volume;
1832 pa_cvolume_remap(&i->volume, channel_map, &i->channel_map);
1833 compute_reference_ratio(i);
1835 /* The volume changed, let's tell people so */
1836 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1837 if (i->volume_changed)
1838 i->volume_changed(i);
1840 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1844 update_real_volume(i->origin_sink, new_volume, channel_map);
1849 /* Called from main thread. Only called for the root sink in shared volume
1851 static void compute_real_volume(pa_sink *s) {
1852 pa_sink_assert_ref(s);
1853 pa_assert_ctl_context();
1854 pa_assert(PA_SINK_IS_LINKED(s->state));
1855 pa_assert(pa_sink_flat_volume_enabled(s));
1856 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1858 /* This determines the maximum volume of all streams and sets
1859 * s->real_volume accordingly. */
1861 if (!has_inputs(s)) {
1862 /* In the special case that we have no sink inputs we leave the
1863 * volume unmodified. */
1864 update_real_volume(s, &s->reference_volume, &s->channel_map);
1868 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1870 /* First let's determine the new maximum volume of all inputs
1871 * connected to this sink */
1872 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1873 update_real_volume(s, &s->real_volume, &s->channel_map);
1875 /* Then, let's update the real ratios/soft volumes of all inputs
1876 * connected to this sink */
1877 compute_real_ratios(s);
1880 /* Called from main thread. Only called for the root sink in shared volume
1881 * cases, except for internal recursive calls. */
1882 static void propagate_reference_volume(pa_sink *s) {
1886 pa_sink_assert_ref(s);
1887 pa_assert_ctl_context();
1888 pa_assert(PA_SINK_IS_LINKED(s->state));
1889 pa_assert(pa_sink_flat_volume_enabled(s));
1891 /* This is called whenever the sink volume changes that is not
1892 * caused by a sink input volume change. We need to fix up the
1893 * sink input volumes accordingly */
1895 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1896 pa_cvolume old_volume;
1898 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1899 propagate_reference_volume(i->origin_sink);
1901 /* Since the origin sink uses volume sharing, this input's volume
1902 * needs to be updated to match the root sink's real volume, but
1903 * that will be done later in update_shared_real_volume(). */
1907 old_volume = i->volume;
1909 /* This basically calculates:
1911 * i->volume := s->reference_volume * i->reference_ratio */
1913 i->volume = s->reference_volume;
1914 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
1915 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
1917 /* The volume changed, let's tell people so */
1918 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1920 if (i->volume_changed)
1921 i->volume_changed(i);
1923 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1928 /* Called from main thread. Only called for the root sink in volume sharing
1929 * cases, except for internal recursive calls. The return value indicates
1930 * whether any reference volume actually changed. */
1931 static pa_bool_t update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1933 pa_bool_t reference_volume_changed;
1937 pa_sink_assert_ref(s);
1938 pa_assert(PA_SINK_IS_LINKED(s->state));
1940 pa_assert(channel_map);
1941 pa_assert(pa_cvolume_valid(v));
1944 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1946 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1947 s->reference_volume = volume;
1949 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1951 if (reference_volume_changed)
1952 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1953 else if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1954 /* If the root sink's volume doesn't change, then there can't be any
1955 * changes in the other sinks in the sink tree either.
1957 * It's probably theoretically possible that even if the root sink's
1958 * volume changes slightly, some filter sink doesn't change its volume
1959 * due to rounding errors. If that happens, we still want to propagate
1960 * the changed root sink volume to the sinks connected to the
1961 * intermediate sink that didn't change its volume. This theoretical
1962 * possibility is the reason why we have that !(s->flags &
1963 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1964 * notice even if we returned here FALSE always if
1965 * reference_volume_changed is FALSE. */
1968 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1969 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1970 update_reference_volume(i->origin_sink, v, channel_map, FALSE);
1976 /* Called from main thread */
1977 void pa_sink_set_volume(
1979 const pa_cvolume *volume,
1983 pa_cvolume new_reference_volume;
1986 pa_sink_assert_ref(s);
1987 pa_assert_ctl_context();
1988 pa_assert(PA_SINK_IS_LINKED(s->state));
1989 pa_assert(!volume || pa_cvolume_valid(volume));
1990 pa_assert(volume || pa_sink_flat_volume_enabled(s));
1991 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1993 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
1994 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1995 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1996 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2000 /* In case of volume sharing, the volume is set for the root sink first,
2001 * from which it's then propagated to the sharing sinks. */
2002 root_sink = pa_sink_get_master(s);
2004 if (PA_UNLIKELY(!root_sink))
2007 /* As a special exception we accept mono volumes on all sinks --
2008 * even on those with more complex channel maps */
2011 if (pa_cvolume_compatible(volume, &s->sample_spec))
2012 new_reference_volume = *volume;
2014 new_reference_volume = s->reference_volume;
2015 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2018 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2020 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2021 if (pa_sink_flat_volume_enabled(root_sink)) {
2022 /* OK, propagate this volume change back to the inputs */
2023 propagate_reference_volume(root_sink);
2025 /* And now recalculate the real volume */
2026 compute_real_volume(root_sink);
2028 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2032 /* If volume is NULL we synchronize the sink's real and
2033 * reference volumes with the stream volumes. */
2035 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2037 /* Ok, let's determine the new real volume */
2038 compute_real_volume(root_sink);
2040 /* Let's 'push' the reference volume if necessary */
2041 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2042 /* If the sink and it's root don't have the same number of channels, we need to remap */
2043 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2044 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2045 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2047 /* Now that the reference volume is updated, we can update the streams'
2048 * reference ratios. */
2049 compute_reference_ratios(root_sink);
2052 if (root_sink->set_volume) {
2053 /* If we have a function set_volume(), then we do not apply a
2054 * soft volume by default. However, set_volume() is free to
2055 * apply one to root_sink->soft_volume */
2057 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2058 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2059 root_sink->set_volume(root_sink);
2062 /* If we have no function set_volume(), then the soft volume
2063 * becomes the real volume */
2064 root_sink->soft_volume = root_sink->real_volume;
2066 /* This tells the sink that soft volume and/or real volume changed */
2068 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2071 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2072 * Only to be called by sink implementor */
2073 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2075 pa_sink_assert_ref(s);
2076 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2078 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2079 pa_sink_assert_io_context(s);
2081 pa_assert_ctl_context();
2084 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2086 s->soft_volume = *volume;
2088 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2089 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2091 s->thread_info.soft_volume = s->soft_volume;
2094 /* Called from the main thread. Only called for the root sink in volume sharing
2095 * cases, except for internal recursive calls. */
2096 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2100 pa_sink_assert_ref(s);
2101 pa_assert(old_real_volume);
2102 pa_assert_ctl_context();
2103 pa_assert(PA_SINK_IS_LINKED(s->state));
2105 /* This is called when the hardware's real volume changes due to
2106 * some external event. We copy the real volume into our
2107 * reference volume and then rebuild the stream volumes based on
2108 * i->real_ratio which should stay fixed. */
2110 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2111 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2114 /* 1. Make the real volume the reference volume */
2115 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
2118 if (pa_sink_flat_volume_enabled(s)) {
2120 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2121 pa_cvolume old_volume = i->volume;
2123 /* 2. Since the sink's reference and real volumes are equal
2124 * now our ratios should be too. */
2125 i->reference_ratio = i->real_ratio;
2127 /* 3. Recalculate the new stream reference volume based on the
2128 * reference ratio and the sink's reference volume.
2130 * This basically calculates:
2132 * i->volume = s->reference_volume * i->reference_ratio
2134 * This is identical to propagate_reference_volume() */
2135 i->volume = s->reference_volume;
2136 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
2137 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
2139 /* Notify if something changed */
2140 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
2142 if (i->volume_changed)
2143 i->volume_changed(i);
2145 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
2148 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2149 propagate_real_volume(i->origin_sink, old_real_volume);
2153 /* Something got changed in the hardware. It probably makes sense
2154 * to save changed hw settings given that hw volume changes not
2155 * triggered by PA are almost certainly done by the user. */
2156 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2157 s->save_volume = TRUE;
2160 /* Called from io thread */
2161 void pa_sink_update_volume_and_mute(pa_sink *s) {
2163 pa_sink_assert_io_context(s);
2165 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2168 /* Called from main thread */
2169 const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_bool_t force_refresh) {
2170 pa_sink_assert_ref(s);
2171 pa_assert_ctl_context();
2172 pa_assert(PA_SINK_IS_LINKED(s->state));
2174 if (s->refresh_volume || force_refresh) {
2175 struct pa_cvolume old_real_volume;
2177 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2179 old_real_volume = s->real_volume;
2181 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2184 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2186 update_real_volume(s, &s->real_volume, &s->channel_map);
2187 propagate_real_volume(s, &old_real_volume);
2190 return &s->reference_volume;
2193 /* Called from main thread. In volume sharing cases, only the root sink may
2195 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2196 pa_cvolume old_real_volume;
2198 pa_sink_assert_ref(s);
2199 pa_assert_ctl_context();
2200 pa_assert(PA_SINK_IS_LINKED(s->state));
2201 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2203 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2205 old_real_volume = s->real_volume;
2206 update_real_volume(s, new_real_volume, &s->channel_map);
2207 propagate_real_volume(s, &old_real_volume);
2210 /* Called from main thread */
2211 void pa_sink_set_mute(pa_sink *s, pa_bool_t mute, pa_bool_t save) {
2212 pa_bool_t old_muted;
2214 pa_sink_assert_ref(s);
2215 pa_assert_ctl_context();
2216 pa_assert(PA_SINK_IS_LINKED(s->state));
2218 old_muted = s->muted;
2220 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
2222 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute)
2225 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2227 if (old_muted != s->muted)
2228 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2231 /* Called from main thread */
2232 pa_bool_t pa_sink_get_mute(pa_sink *s, pa_bool_t force_refresh) {
2234 pa_sink_assert_ref(s);
2235 pa_assert_ctl_context();
2236 pa_assert(PA_SINK_IS_LINKED(s->state));
2238 if (s->refresh_muted || force_refresh) {
2239 pa_bool_t old_muted = s->muted;
2241 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_mute)
2244 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
2246 if (old_muted != s->muted) {
2247 s->save_muted = TRUE;
2249 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2251 /* Make sure the soft mute status stays in sync */
2252 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2259 /* Called from main thread */
2260 void pa_sink_mute_changed(pa_sink *s, pa_bool_t new_muted) {
2261 pa_sink_assert_ref(s);
2262 pa_assert_ctl_context();
2263 pa_assert(PA_SINK_IS_LINKED(s->state));
2265 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2267 if (s->muted == new_muted)
2270 s->muted = new_muted;
2271 s->save_muted = TRUE;
2273 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2276 /* Called from main thread */
2277 pa_bool_t pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2278 pa_sink_assert_ref(s);
2279 pa_assert_ctl_context();
2282 pa_proplist_update(s->proplist, mode, p);
2284 if (PA_SINK_IS_LINKED(s->state)) {
2285 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2286 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2292 /* Called from main thread */
2293 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2294 void pa_sink_set_description(pa_sink *s, const char *description) {
2296 pa_sink_assert_ref(s);
2297 pa_assert_ctl_context();
2299 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2302 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2304 if (old && description && pa_streq(old, description))
2308 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2310 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2312 if (s->monitor_source) {
2315 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2316 pa_source_set_description(s->monitor_source, n);
2320 if (PA_SINK_IS_LINKED(s->state)) {
2321 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2322 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2326 /* Called from main thread */
2327 unsigned pa_sink_linked_by(pa_sink *s) {
2330 pa_sink_assert_ref(s);
2331 pa_assert_ctl_context();
2332 pa_assert(PA_SINK_IS_LINKED(s->state));
2334 ret = pa_idxset_size(s->inputs);
2336 /* We add in the number of streams connected to us here. Please
2337 * note the asymmetry to pa_sink_used_by()! */
2339 if (s->monitor_source)
2340 ret += pa_source_linked_by(s->monitor_source);
2345 /* Called from main thread */
2346 unsigned pa_sink_used_by(pa_sink *s) {
2349 pa_sink_assert_ref(s);
2350 pa_assert_ctl_context();
2351 pa_assert(PA_SINK_IS_LINKED(s->state));
2353 ret = pa_idxset_size(s->inputs);
2354 pa_assert(ret >= s->n_corked);
2356 /* Streams connected to our monitor source do not matter for
2357 * pa_sink_used_by()!.*/
2359 return ret - s->n_corked;
2362 /* Called from main thread */
2363 unsigned pa_sink_check_suspend(pa_sink *s) {
2368 pa_sink_assert_ref(s);
2369 pa_assert_ctl_context();
2371 if (!PA_SINK_IS_LINKED(s->state))
2376 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2377 pa_sink_input_state_t st;
2379 st = pa_sink_input_get_state(i);
2381 /* We do not assert here. It is perfectly valid for a sink input to
2382 * be in the INIT state (i.e. created, marked done but not yet put)
2383 * and we should not care if it's unlinked as it won't contribute
2384 * towards our busy status.
2386 if (!PA_SINK_INPUT_IS_LINKED(st))
2389 if (st == PA_SINK_INPUT_CORKED)
2392 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2398 if (s->monitor_source)
2399 ret += pa_source_check_suspend(s->monitor_source);
2404 /* Called from the IO thread */
2405 static void sync_input_volumes_within_thread(pa_sink *s) {
2409 pa_sink_assert_ref(s);
2410 pa_sink_assert_io_context(s);
2412 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2413 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2416 i->thread_info.soft_volume = i->soft_volume;
2417 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
2421 /* Called from the IO thread. Only called for the root sink in volume sharing
2422 * cases, except for internal recursive calls. */
2423 static void set_shared_volume_within_thread(pa_sink *s) {
2424 pa_sink_input *i = NULL;
2427 pa_sink_assert_ref(s);
2429 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2431 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2432 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2433 set_shared_volume_within_thread(i->origin_sink);
2437 /* Called from IO thread, except when it is not */
2438 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2439 pa_sink *s = PA_SINK(o);
2440 pa_sink_assert_ref(s);
2442 switch ((pa_sink_message_t) code) {
2444 case PA_SINK_MESSAGE_ADD_INPUT: {
2445 pa_sink_input *i = PA_SINK_INPUT(userdata);
2447 /* If you change anything here, make sure to change the
2448 * sink input handling a few lines down at
2449 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2451 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2453 /* Since the caller sleeps in pa_sink_input_put(), we can
2454 * safely access data outside of thread_info even though
2457 if ((i->thread_info.sync_prev = i->sync_prev)) {
2458 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2459 pa_assert(i->sync_prev->sync_next == i);
2460 i->thread_info.sync_prev->thread_info.sync_next = i;
2463 if ((i->thread_info.sync_next = i->sync_next)) {
2464 pa_assert(i->sink == i->thread_info.sync_next->sink);
2465 pa_assert(i->sync_next->sync_prev == i);
2466 i->thread_info.sync_next->thread_info.sync_prev = i;
2469 pa_assert(!i->thread_info.attached);
2470 i->thread_info.attached = TRUE;
2475 pa_sink_input_set_state_within_thread(i, i->state);
2477 /* The requested latency of the sink input needs to be fixed up and
2478 * then configured on the sink. If this causes the sink latency to
2479 * go down, the sink implementor is responsible for doing a rewind
2480 * in the update_requested_latency() callback to ensure that the
2481 * sink buffer doesn't contain more data than what the new latency
2484 * XXX: Does it really make sense to push this responsibility to
2485 * the sink implementors? Wouldn't it be better to do it once in
2486 * the core than many times in the modules? */
2488 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2489 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2491 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2492 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2494 /* We don't rewind here automatically. This is left to the
2495 * sink input implementor because some sink inputs need a
2496 * slow start, i.e. need some time to buffer client
2497 * samples before beginning streaming.
2499 * XXX: Does it really make sense to push this functionality to
2500 * the sink implementors? Wouldn't it be better to do it once in
2501 * the core than many times in the modules? */
2503 /* In flat volume mode we need to update the volume as
2505 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2508 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2509 pa_sink_input *i = PA_SINK_INPUT(userdata);
2511 /* If you change anything here, make sure to change the
2512 * sink input handling a few lines down at
2513 * PA_SINK_MESSAGE_START_MOVE, too. */
2518 pa_sink_input_set_state_within_thread(i, i->state);
2520 pa_assert(i->thread_info.attached);
2521 i->thread_info.attached = FALSE;
2523 /* Since the caller sleeps in pa_sink_input_unlink(),
2524 * we can safely access data outside of thread_info even
2525 * though it is mutable */
2527 pa_assert(!i->sync_prev);
2528 pa_assert(!i->sync_next);
2530 if (i->thread_info.sync_prev) {
2531 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2532 i->thread_info.sync_prev = NULL;
2535 if (i->thread_info.sync_next) {
2536 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2537 i->thread_info.sync_next = NULL;
2540 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2541 pa_sink_input_unref(i);
2543 pa_sink_invalidate_requested_latency(s, TRUE);
2544 pa_sink_request_rewind(s, (size_t) -1);
2546 /* In flat volume mode we need to update the volume as
2548 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2551 case PA_SINK_MESSAGE_START_MOVE: {
2552 pa_sink_input *i = PA_SINK_INPUT(userdata);
2554 /* We don't support moving synchronized streams. */
2555 pa_assert(!i->sync_prev);
2556 pa_assert(!i->sync_next);
2557 pa_assert(!i->thread_info.sync_next);
2558 pa_assert(!i->thread_info.sync_prev);
2560 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2562 size_t sink_nbytes, total_nbytes;
2564 /* The old sink probably has some audio from this
2565 * stream in its buffer. We want to "take it back" as
2566 * much as possible and play it to the new sink. We
2567 * don't know at this point how much the old sink can
2568 * rewind. We have to pick something, and that
2569 * something is the full latency of the old sink here.
2570 * So we rewind the stream buffer by the sink latency
2571 * amount, which may be more than what we should
2572 * rewind. This can result in a chunk of audio being
2573 * played both to the old sink and the new sink.
2575 * FIXME: Fix this code so that we don't have to make
2576 * guesses about how much the sink will actually be
2577 * able to rewind. If someone comes up with a solution
2578 * for this, something to note is that the part of the
2579 * latency that the old sink couldn't rewind should
2580 * ideally be compensated after the stream has moved
2581 * to the new sink by adding silence. The new sink
2582 * most likely can't start playing the moved stream
2583 * immediately, and that gap should be removed from
2584 * the "compensation silence" (at least at the time of
2585 * writing this, the move finish code will actually
2586 * already take care of dropping the new sink's
2587 * unrewindable latency, so taking into account the
2588 * unrewindable latency of the old sink is the only
2591 * The render_memblockq contents are discarded,
2592 * because when the sink changes, the format of the
2593 * audio stored in the render_memblockq may change
2594 * too, making the stored audio invalid. FIXME:
2595 * However, the read and write indices are moved back
2596 * the same amount, so if they are not the same now,
2597 * they won't be the same after the rewind either. If
2598 * the write index of the render_memblockq is ahead of
2599 * the read index, then the render_memblockq will feed
2600 * the new sink some silence first, which it shouldn't
2601 * do. The write index should be flushed to be the
2602 * same as the read index. */
2604 /* Get the latency of the sink */
2605 usec = pa_sink_get_latency_within_thread(s);
2606 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2607 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2609 if (total_nbytes > 0) {
2610 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2611 i->thread_info.rewrite_flush = TRUE;
2612 pa_sink_input_process_rewind(i, sink_nbytes);
2619 pa_assert(i->thread_info.attached);
2620 i->thread_info.attached = FALSE;
2622 /* Let's remove the sink input ...*/
2623 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2624 pa_sink_input_unref(i);
2626 pa_sink_invalidate_requested_latency(s, TRUE);
2628 pa_log_debug("Requesting rewind due to started move");
2629 pa_sink_request_rewind(s, (size_t) -1);
2631 /* In flat volume mode we need to update the volume as
2633 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2636 case PA_SINK_MESSAGE_FINISH_MOVE: {
2637 pa_sink_input *i = PA_SINK_INPUT(userdata);
2639 /* We don't support moving synchronized streams. */
2640 pa_assert(!i->sync_prev);
2641 pa_assert(!i->sync_next);
2642 pa_assert(!i->thread_info.sync_next);
2643 pa_assert(!i->thread_info.sync_prev);
2645 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2647 pa_assert(!i->thread_info.attached);
2648 i->thread_info.attached = TRUE;
2653 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2657 /* In the ideal case the new sink would start playing
2658 * the stream immediately. That requires the sink to
2659 * be able to rewind all of its latency, which usually
2660 * isn't possible, so there will probably be some gap
2661 * before the moved stream becomes audible. We then
2662 * have two possibilities: 1) start playing the stream
2663 * from where it is now, or 2) drop the unrewindable
2664 * latency of the sink from the stream. With option 1
2665 * we won't lose any audio but the stream will have a
2666 * pause. With option 2 we may lose some audio but the
2667 * stream time will be somewhat in sync with the wall
2668 * clock. Lennart seems to have chosen option 2 (one
2669 * of the reasons might have been that option 1 is
2670 * actually much harder to implement), so we drop the
2671 * latency of the new sink from the moved stream and
2672 * hope that the sink will undo most of that in the
2675 /* Get the latency of the sink */
2676 usec = pa_sink_get_latency_within_thread(s);
2677 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2680 pa_sink_input_drop(i, nbytes);
2682 pa_log_debug("Requesting rewind due to finished move");
2683 pa_sink_request_rewind(s, nbytes);
2686 /* Updating the requested sink latency has to be done
2687 * after the sink rewind request, not before, because
2688 * otherwise the sink may limit the rewind amount
2691 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2692 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2694 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2695 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2697 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2700 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2701 pa_sink *root_sink = pa_sink_get_master(s);
2703 if (PA_LIKELY(root_sink))
2704 set_shared_volume_within_thread(root_sink);
2709 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2711 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2713 pa_sink_volume_change_push(s);
2715 /* Fall through ... */
2717 case PA_SINK_MESSAGE_SET_VOLUME:
2719 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2720 s->thread_info.soft_volume = s->soft_volume;
2721 pa_sink_request_rewind(s, (size_t) -1);
2724 /* Fall through ... */
2726 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2727 sync_input_volumes_within_thread(s);
2730 case PA_SINK_MESSAGE_GET_VOLUME:
2732 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2734 pa_sink_volume_change_flush(s);
2735 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2738 /* In case sink implementor reset SW volume. */
2739 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2740 s->thread_info.soft_volume = s->soft_volume;
2741 pa_sink_request_rewind(s, (size_t) -1);
2746 case PA_SINK_MESSAGE_SET_MUTE:
2748 if (s->thread_info.soft_muted != s->muted) {
2749 s->thread_info.soft_muted = s->muted;
2750 pa_sink_request_rewind(s, (size_t) -1);
2753 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2758 case PA_SINK_MESSAGE_GET_MUTE:
2760 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2765 case PA_SINK_MESSAGE_SET_STATE: {
2767 pa_bool_t suspend_change =
2768 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2769 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2771 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2773 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2774 s->thread_info.rewind_nbytes = 0;
2775 s->thread_info.rewind_requested = FALSE;
2778 if (suspend_change) {
2782 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2783 if (i->suspend_within_thread)
2784 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2790 case PA_SINK_MESSAGE_DETACH:
2792 /* Detach all streams */
2793 pa_sink_detach_within_thread(s);
2796 case PA_SINK_MESSAGE_ATTACH:
2798 /* Reattach all streams */
2799 pa_sink_attach_within_thread(s);
2802 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2804 pa_usec_t *usec = userdata;
2805 *usec = pa_sink_get_requested_latency_within_thread(s);
2807 /* Yes, that's right, the IO thread will see -1 when no
2808 * explicit requested latency is configured, the main
2809 * thread will see max_latency */
2810 if (*usec == (pa_usec_t) -1)
2811 *usec = s->thread_info.max_latency;
2816 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2817 pa_usec_t *r = userdata;
2819 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2824 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2825 pa_usec_t *r = userdata;
2827 r[0] = s->thread_info.min_latency;
2828 r[1] = s->thread_info.max_latency;
2833 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2835 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2838 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2840 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2843 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2845 *((size_t*) userdata) = s->thread_info.max_rewind;
2848 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2850 *((size_t*) userdata) = s->thread_info.max_request;
2853 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2855 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2858 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2860 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2863 case PA_SINK_MESSAGE_SET_PORT:
2865 pa_assert(userdata);
2867 struct sink_message_set_port *msg_data = userdata;
2868 msg_data->ret = s->set_port(s, msg_data->port);
2872 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2873 /* This message is sent from IO-thread and handled in main thread. */
2874 pa_assert_ctl_context();
2876 /* Make sure we're not messing with main thread when no longer linked */
2877 if (!PA_SINK_IS_LINKED(s->state))
2880 pa_sink_get_volume(s, TRUE);
2881 pa_sink_get_mute(s, TRUE);
2884 case PA_SINK_MESSAGE_SET_LATENCY_OFFSET:
2885 s->thread_info.latency_offset = offset;
2888 case PA_SINK_MESSAGE_GET_LATENCY:
2889 case PA_SINK_MESSAGE_MAX:
2896 /* Called from main thread */
2897 int pa_sink_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2902 pa_core_assert_ref(c);
2903 pa_assert_ctl_context();
2904 pa_assert(cause != 0);
2906 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2909 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2916 /* Called from main thread */
2917 void pa_sink_detach(pa_sink *s) {
2918 pa_sink_assert_ref(s);
2919 pa_assert_ctl_context();
2920 pa_assert(PA_SINK_IS_LINKED(s->state));
2922 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2925 /* Called from main thread */
2926 void pa_sink_attach(pa_sink *s) {
2927 pa_sink_assert_ref(s);
2928 pa_assert_ctl_context();
2929 pa_assert(PA_SINK_IS_LINKED(s->state));
2931 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2934 /* Called from IO thread */
2935 void pa_sink_detach_within_thread(pa_sink *s) {
2939 pa_sink_assert_ref(s);
2940 pa_sink_assert_io_context(s);
2941 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2943 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2947 if (s->monitor_source)
2948 pa_source_detach_within_thread(s->monitor_source);
2951 /* Called from IO thread */
2952 void pa_sink_attach_within_thread(pa_sink *s) {
2956 pa_sink_assert_ref(s);
2957 pa_sink_assert_io_context(s);
2958 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2960 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2964 if (s->monitor_source)
2965 pa_source_attach_within_thread(s->monitor_source);
2968 /* Called from IO thread */
2969 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2970 pa_sink_assert_ref(s);
2971 pa_sink_assert_io_context(s);
2972 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2974 if (nbytes == (size_t) -1)
2975 nbytes = s->thread_info.max_rewind;
2977 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2979 if (s->thread_info.rewind_requested &&
2980 nbytes <= s->thread_info.rewind_nbytes)
2983 s->thread_info.rewind_nbytes = nbytes;
2984 s->thread_info.rewind_requested = TRUE;
2986 if (s->request_rewind)
2987 s->request_rewind(s);
2990 /* Called from IO thread */
2991 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
2992 pa_usec_t result = (pa_usec_t) -1;
2995 pa_usec_t monitor_latency;
2997 pa_sink_assert_ref(s);
2998 pa_sink_assert_io_context(s);
3000 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3001 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3003 if (s->thread_info.requested_latency_valid)
3004 return s->thread_info.requested_latency;
3006 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3007 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3008 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3009 result = i->thread_info.requested_sink_latency;
3011 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3013 if (monitor_latency != (pa_usec_t) -1 &&
3014 (result == (pa_usec_t) -1 || result > monitor_latency))
3015 result = monitor_latency;
3017 if (result != (pa_usec_t) -1)
3018 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3020 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3021 /* Only cache if properly initialized */
3022 s->thread_info.requested_latency = result;
3023 s->thread_info.requested_latency_valid = TRUE;
3029 /* Called from main thread */
3030 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3033 pa_sink_assert_ref(s);
3034 pa_assert_ctl_context();
3035 pa_assert(PA_SINK_IS_LINKED(s->state));
3037 if (s->state == PA_SINK_SUSPENDED)
3040 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3045 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3046 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3050 pa_sink_assert_ref(s);
3051 pa_sink_assert_io_context(s);
3053 if (max_rewind == s->thread_info.max_rewind)
3056 s->thread_info.max_rewind = max_rewind;
3058 if (PA_SINK_IS_LINKED(s->thread_info.state))
3059 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3060 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3062 if (s->monitor_source)
3063 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3066 /* Called from main thread */
3067 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3068 pa_sink_assert_ref(s);
3069 pa_assert_ctl_context();
3071 if (PA_SINK_IS_LINKED(s->state))
3072 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3074 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3077 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3078 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3081 pa_sink_assert_ref(s);
3082 pa_sink_assert_io_context(s);
3084 if (max_request == s->thread_info.max_request)
3087 s->thread_info.max_request = max_request;
3089 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3092 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3093 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3097 /* Called from main thread */
3098 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3099 pa_sink_assert_ref(s);
3100 pa_assert_ctl_context();
3102 if (PA_SINK_IS_LINKED(s->state))
3103 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3105 pa_sink_set_max_request_within_thread(s, max_request);
3108 /* Called from IO thread */
3109 void pa_sink_invalidate_requested_latency(pa_sink *s, pa_bool_t dynamic) {
3113 pa_sink_assert_ref(s);
3114 pa_sink_assert_io_context(s);
3116 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3117 s->thread_info.requested_latency_valid = FALSE;
3121 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3123 if (s->update_requested_latency)
3124 s->update_requested_latency(s);
3126 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3127 if (i->update_sink_requested_latency)
3128 i->update_sink_requested_latency(i);
3132 /* Called from main thread */
3133 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3134 pa_sink_assert_ref(s);
3135 pa_assert_ctl_context();
3137 /* min_latency == 0: no limit
3138 * min_latency anything else: specified limit
3140 * Similar for max_latency */
3142 if (min_latency < ABSOLUTE_MIN_LATENCY)
3143 min_latency = ABSOLUTE_MIN_LATENCY;
3145 if (max_latency <= 0 ||
3146 max_latency > ABSOLUTE_MAX_LATENCY)
3147 max_latency = ABSOLUTE_MAX_LATENCY;
3149 pa_assert(min_latency <= max_latency);
3151 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3152 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3153 max_latency == ABSOLUTE_MAX_LATENCY) ||
3154 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3156 if (PA_SINK_IS_LINKED(s->state)) {
3162 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3164 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3167 /* Called from main thread */
3168 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3169 pa_sink_assert_ref(s);
3170 pa_assert_ctl_context();
3171 pa_assert(min_latency);
3172 pa_assert(max_latency);
3174 if (PA_SINK_IS_LINKED(s->state)) {
3175 pa_usec_t r[2] = { 0, 0 };
3177 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3179 *min_latency = r[0];
3180 *max_latency = r[1];
3182 *min_latency = s->thread_info.min_latency;
3183 *max_latency = s->thread_info.max_latency;
3187 /* Called from IO thread */
3188 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3189 pa_sink_assert_ref(s);
3190 pa_sink_assert_io_context(s);
3192 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3193 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3194 pa_assert(min_latency <= max_latency);
3196 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3197 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3198 max_latency == ABSOLUTE_MAX_LATENCY) ||
3199 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3201 if (s->thread_info.min_latency == min_latency &&
3202 s->thread_info.max_latency == max_latency)
3205 s->thread_info.min_latency = min_latency;
3206 s->thread_info.max_latency = max_latency;
3208 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3212 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3213 if (i->update_sink_latency_range)
3214 i->update_sink_latency_range(i);
3217 pa_sink_invalidate_requested_latency(s, FALSE);
3219 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3222 /* Called from main thread */
3223 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3224 pa_sink_assert_ref(s);
3225 pa_assert_ctl_context();
3227 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3228 pa_assert(latency == 0);
3232 if (latency < ABSOLUTE_MIN_LATENCY)
3233 latency = ABSOLUTE_MIN_LATENCY;
3235 if (latency > ABSOLUTE_MAX_LATENCY)
3236 latency = ABSOLUTE_MAX_LATENCY;
3238 if (PA_SINK_IS_LINKED(s->state))
3239 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3241 s->thread_info.fixed_latency = latency;
3243 pa_source_set_fixed_latency(s->monitor_source, latency);
3246 /* Called from main thread */
3247 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3250 pa_sink_assert_ref(s);
3251 pa_assert_ctl_context();
3253 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3256 if (PA_SINK_IS_LINKED(s->state))
3257 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3259 latency = s->thread_info.fixed_latency;
3264 /* Called from IO thread */
3265 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3266 pa_sink_assert_ref(s);
3267 pa_sink_assert_io_context(s);
3269 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3270 pa_assert(latency == 0);
3274 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3275 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3277 if (s->thread_info.fixed_latency == latency)
3280 s->thread_info.fixed_latency = latency;
3282 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3286 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3287 if (i->update_sink_fixed_latency)
3288 i->update_sink_fixed_latency(i);
3291 pa_sink_invalidate_requested_latency(s, FALSE);
3293 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3296 /* Called from main context */
3297 void pa_sink_set_latency_offset(pa_sink *s, int64_t offset) {
3298 pa_sink_assert_ref(s);
3300 s->latency_offset = offset;
3302 if (PA_SINK_IS_LINKED(s->state))
3303 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3305 s->thread_info.latency_offset = offset;
3308 /* Called from main context */
3309 size_t pa_sink_get_max_rewind(pa_sink *s) {
3311 pa_assert_ctl_context();
3312 pa_sink_assert_ref(s);
3314 if (!PA_SINK_IS_LINKED(s->state))
3315 return s->thread_info.max_rewind;
3317 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3322 /* Called from main context */
3323 size_t pa_sink_get_max_request(pa_sink *s) {
3325 pa_sink_assert_ref(s);
3326 pa_assert_ctl_context();
3328 if (!PA_SINK_IS_LINKED(s->state))
3329 return s->thread_info.max_request;
3331 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3336 /* Called from main context */
3337 int pa_sink_set_port(pa_sink *s, const char *name, pa_bool_t save) {
3338 pa_device_port *port;
3341 pa_sink_assert_ref(s);
3342 pa_assert_ctl_context();
3345 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3346 return -PA_ERR_NOTIMPLEMENTED;
3350 return -PA_ERR_NOENTITY;
3352 if (!(port = pa_hashmap_get(s->ports, name)))
3353 return -PA_ERR_NOENTITY;
3355 if (s->active_port == port) {
3356 s->save_port = s->save_port || save;
3360 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3361 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3362 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3366 ret = s->set_port(s, port);
3369 return -PA_ERR_NOENTITY;
3371 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3373 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3375 s->active_port = port;
3376 s->save_port = save;
3378 pa_sink_set_latency_offset(s, s->active_port->latency_offset);
3380 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3385 pa_bool_t pa_device_init_icon(pa_proplist *p, pa_bool_t is_sink) {
3386 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3390 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3393 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3395 if (pa_streq(ff, "microphone"))
3396 t = "audio-input-microphone";
3397 else if (pa_streq(ff, "webcam"))
3399 else if (pa_streq(ff, "computer"))
3401 else if (pa_streq(ff, "handset"))
3403 else if (pa_streq(ff, "portable"))
3404 t = "multimedia-player";
3405 else if (pa_streq(ff, "tv"))
3406 t = "video-display";
3409 * The following icons are not part of the icon naming spec,
3410 * because Rodney Dawes sucks as the maintainer of that spec.
3412 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3414 else if (pa_streq(ff, "headset"))
3415 t = "audio-headset";
3416 else if (pa_streq(ff, "headphone"))
3417 t = "audio-headphones";
3418 else if (pa_streq(ff, "speaker"))
3419 t = "audio-speakers";
3420 else if (pa_streq(ff, "hands-free"))
3421 t = "audio-handsfree";
3425 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3426 if (pa_streq(c, "modem"))
3433 t = "audio-input-microphone";
3436 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3437 if (strstr(profile, "analog"))
3439 else if (strstr(profile, "iec958"))
3441 else if (strstr(profile, "hdmi"))
3445 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3447 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3452 pa_bool_t pa_device_init_description(pa_proplist *p) {
3453 const char *s, *d = NULL, *k;
3456 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3459 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3460 if (pa_streq(s, "internal"))
3461 d = _("Built-in Audio");
3464 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3465 if (pa_streq(s, "modem"))
3469 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3474 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3477 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3479 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3484 pa_bool_t pa_device_init_intended_roles(pa_proplist *p) {
3488 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3491 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3492 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3493 || pa_streq(s, "headset")) {
3494 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3501 unsigned pa_device_init_priority(pa_proplist *p) {
3503 unsigned priority = 0;
3507 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3509 if (pa_streq(s, "sound"))
3511 else if (!pa_streq(s, "modem"))
3515 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3517 if (pa_streq(s, "internal"))
3519 else if (pa_streq(s, "speaker"))
3521 else if (pa_streq(s, "headphone"))
3525 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3527 if (pa_streq(s, "pci"))
3529 else if (pa_streq(s, "usb"))
3531 else if (pa_streq(s, "bluetooth"))
3535 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3537 if (pa_startswith(s, "analog-"))
3539 else if (pa_startswith(s, "iec958-"))
3546 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3548 /* Called from the IO thread. */
3549 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3550 pa_sink_volume_change *c;
3551 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3552 c = pa_xnew(pa_sink_volume_change, 1);
3554 PA_LLIST_INIT(pa_sink_volume_change, c);
3556 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3560 /* Called from the IO thread. */
3561 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3563 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3567 /* Called from the IO thread. */
3568 void pa_sink_volume_change_push(pa_sink *s) {
3569 pa_sink_volume_change *c = NULL;
3570 pa_sink_volume_change *nc = NULL;
3571 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3573 const char *direction = NULL;
3576 nc = pa_sink_volume_change_new(s);
3578 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3579 * Adding one more volume for HW would get us rid of this, but I am trying
3580 * to survive with the ones we already have. */
3581 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3583 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3584 pa_log_debug("Volume not changing");
3585 pa_sink_volume_change_free(nc);
3589 nc->at = pa_sink_get_latency_within_thread(s);
3590 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3592 if (s->thread_info.volume_changes_tail) {
3593 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3594 /* If volume is going up let's do it a bit late. If it is going
3595 * down let's do it a bit early. */
3596 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3597 if (nc->at + safety_margin > c->at) {
3598 nc->at += safety_margin;
3603 else if (nc->at - safety_margin > c->at) {
3604 nc->at -= safety_margin;
3612 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3613 nc->at += safety_margin;
3616 nc->at -= safety_margin;
3619 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3622 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3625 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3627 /* We can ignore volume events that came earlier but should happen later than this. */
3628 PA_LLIST_FOREACH(c, nc->next) {
3629 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3630 pa_sink_volume_change_free(c);
3633 s->thread_info.volume_changes_tail = nc;
3636 /* Called from the IO thread. */
3637 static void pa_sink_volume_change_flush(pa_sink *s) {
3638 pa_sink_volume_change *c = s->thread_info.volume_changes;
3640 s->thread_info.volume_changes = NULL;
3641 s->thread_info.volume_changes_tail = NULL;
3643 pa_sink_volume_change *next = c->next;
3644 pa_sink_volume_change_free(c);
3649 /* Called from the IO thread. */
3650 pa_bool_t pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3652 pa_bool_t ret = FALSE;
3656 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3662 pa_assert(s->write_volume);
3664 now = pa_rtclock_now();
3666 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3667 pa_sink_volume_change *c = s->thread_info.volume_changes;
3668 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3669 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3670 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3672 s->thread_info.current_hw_volume = c->hw_volume;
3673 pa_sink_volume_change_free(c);
3679 if (s->thread_info.volume_changes) {
3681 *usec_to_next = s->thread_info.volume_changes->at - now;
3682 if (pa_log_ratelimit(PA_LOG_DEBUG))
3683 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3688 s->thread_info.volume_changes_tail = NULL;
3693 /* Called from the IO thread. */
3694 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3695 /* All the queued volume events later than current latency are shifted to happen earlier. */
3696 pa_sink_volume_change *c;
3697 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3698 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3699 pa_usec_t limit = pa_sink_get_latency_within_thread(s);
3701 pa_log_debug("latency = %lld", (long long) limit);
3702 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3704 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3705 pa_usec_t modified_limit = limit;
3706 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3707 modified_limit -= s->thread_info.volume_change_safety_margin;
3709 modified_limit += s->thread_info.volume_change_safety_margin;
3710 if (c->at > modified_limit) {
3712 if (c->at < modified_limit)
3713 c->at = modified_limit;
3715 prev_vol = pa_cvolume_avg(&c->hw_volume);
3717 pa_sink_volume_change_apply(s, NULL);
3720 /* Called from the main thread */
3721 /* Gets the list of formats supported by the sink. The members and idxset must
3722 * be freed by the caller. */
3723 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3728 if (s->get_formats) {
3729 /* Sink supports format query, all is good */
3730 ret = s->get_formats(s);
3732 /* Sink doesn't support format query, so assume it does PCM */
3733 pa_format_info *f = pa_format_info_new();
3734 f->encoding = PA_ENCODING_PCM;
3736 ret = pa_idxset_new(NULL, NULL);
3737 pa_idxset_put(ret, f, NULL);
3743 /* Called from the main thread */
3744 /* Allows an external source to set what formats a sink supports if the sink
3745 * permits this. The function makes a copy of the formats on success. */
3746 pa_bool_t pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3751 /* Sink supports setting formats -- let's give it a shot */
3752 return s->set_formats(s, formats);
3754 /* Sink doesn't support setting this -- bail out */
3758 /* Called from the main thread */
3759 /* Checks if the sink can accept this format */
3760 pa_bool_t pa_sink_check_format(pa_sink *s, pa_format_info *f)
3762 pa_idxset *formats = NULL;
3763 pa_bool_t ret = FALSE;
3768 formats = pa_sink_get_formats(s);
3771 pa_format_info *finfo_device;
3774 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3775 if (pa_format_info_is_compatible(finfo_device, f)) {
3781 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3787 /* Called from the main thread */
3788 /* Calculates the intersection between formats supported by the sink and
3789 * in_formats, and returns these, in the order of the sink's formats. */
3790 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3791 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3792 pa_format_info *f_sink, *f_in;
3797 if (!in_formats || pa_idxset_isempty(in_formats))
3800 sink_formats = pa_sink_get_formats(s);
3802 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3803 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3804 if (pa_format_info_is_compatible(f_sink, f_in))
3805 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3811 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);