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/core-subscribe.h>
46 #include <pulsecore/log.h>
47 #include <pulsecore/macro.h>
48 #include <pulsecore/play-memblockq.h>
49 #include <pulsecore/flist.h>
53 #define MAX_MIX_CHANNELS 32
54 #define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
55 #define ABSOLUTE_MIN_LATENCY (500)
56 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
57 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
59 PA_DEFINE_PUBLIC_CLASS(pa_sink, pa_msgobject);
61 struct pa_sink_volume_change {
65 PA_LLIST_FIELDS(pa_sink_volume_change);
68 struct sink_message_set_port {
73 static void sink_free(pa_object *s);
75 static void pa_sink_volume_change_push(pa_sink *s);
76 static void pa_sink_volume_change_flush(pa_sink *s);
77 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes);
79 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
83 data->proplist = pa_proplist_new();
84 data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
89 void pa_sink_new_data_set_name(pa_sink_new_data *data, const char *name) {
93 data->name = pa_xstrdup(name);
96 void pa_sink_new_data_set_sample_spec(pa_sink_new_data *data, const pa_sample_spec *spec) {
99 if ((data->sample_spec_is_set = !!spec))
100 data->sample_spec = *spec;
103 void pa_sink_new_data_set_channel_map(pa_sink_new_data *data, const pa_channel_map *map) {
106 if ((data->channel_map_is_set = !!map))
107 data->channel_map = *map;
110 void pa_sink_new_data_set_alternate_sample_rate(pa_sink_new_data *data, const uint32_t alternate_sample_rate) {
113 data->alternate_sample_rate_is_set = TRUE;
114 data->alternate_sample_rate = alternate_sample_rate;
117 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
120 if ((data->volume_is_set = !!volume))
121 data->volume = *volume;
124 void pa_sink_new_data_set_muted(pa_sink_new_data *data, pa_bool_t mute) {
127 data->muted_is_set = TRUE;
128 data->muted = !!mute;
131 void pa_sink_new_data_set_port(pa_sink_new_data *data, const char *port) {
134 pa_xfree(data->active_port);
135 data->active_port = pa_xstrdup(port);
138 void pa_sink_new_data_done(pa_sink_new_data *data) {
141 pa_proplist_free(data->proplist);
144 pa_device_port_hashmap_free(data->ports);
146 pa_xfree(data->name);
147 pa_xfree(data->active_port);
151 /* Called from main context */
152 static void reset_callbacks(pa_sink *s) {
156 s->get_volume = NULL;
157 s->set_volume = NULL;
158 s->write_volume = NULL;
161 s->request_rewind = NULL;
162 s->update_requested_latency = NULL;
164 s->get_formats = NULL;
165 s->set_formats = NULL;
166 s->update_rate = NULL;
169 /* Called from main context */
170 pa_sink* pa_sink_new(
172 pa_sink_new_data *data,
173 pa_sink_flags_t flags) {
177 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
178 pa_source_new_data source_data;
184 pa_assert(data->name);
185 pa_assert_ctl_context();
187 s = pa_msgobject_new(pa_sink);
189 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
190 pa_log_debug("Failed to register name %s.", data->name);
195 pa_sink_new_data_set_name(data, name);
197 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
199 pa_namereg_unregister(core, name);
203 /* FIXME, need to free s here on failure */
205 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
206 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
208 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
210 if (!data->channel_map_is_set)
211 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
213 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
214 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
216 /* FIXME: There should probably be a general function for checking whether
217 * the sink volume is allowed to be set, like there is for sink inputs. */
218 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
220 if (!data->volume_is_set) {
221 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
222 data->save_volume = FALSE;
225 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
226 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
228 if (!data->muted_is_set)
232 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
234 pa_device_init_description(data->proplist);
235 pa_device_init_icon(data->proplist, TRUE);
236 pa_device_init_intended_roles(data->proplist);
238 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
240 pa_namereg_unregister(core, name);
244 s->parent.parent.free = sink_free;
245 s->parent.process_msg = pa_sink_process_msg;
248 s->state = PA_SINK_INIT;
251 s->suspend_cause = 0;
252 pa_sink_set_mixer_dirty(s, FALSE);
253 s->name = pa_xstrdup(name);
254 s->proplist = pa_proplist_copy(data->proplist);
255 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
256 s->module = data->module;
257 s->card = data->card;
259 s->priority = pa_device_init_priority(s->proplist);
261 s->sample_spec = data->sample_spec;
262 s->channel_map = data->channel_map;
263 s->default_sample_rate = s->sample_spec.rate;
265 if (data->alternate_sample_rate_is_set)
266 s->alternate_sample_rate = data->alternate_sample_rate;
268 s->alternate_sample_rate = s->core->alternate_sample_rate;
270 if (s->sample_spec.rate == s->alternate_sample_rate) {
271 pa_log_warn("Default and alternate sample rates are the same.");
272 s->alternate_sample_rate = 0;
275 s->inputs = pa_idxset_new(NULL, NULL);
277 s->input_to_master = NULL;
279 s->reference_volume = s->real_volume = data->volume;
280 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
281 s->base_volume = PA_VOLUME_NORM;
282 s->n_volume_steps = PA_VOLUME_NORM+1;
283 s->muted = data->muted;
284 s->refresh_volume = s->refresh_muted = FALSE;
291 /* As a minor optimization we just steal the list instead of
293 s->ports = data->ports;
296 s->active_port = NULL;
297 s->save_port = FALSE;
299 if (data->active_port)
300 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
301 s->save_port = data->save_port;
303 if (!s->active_port) {
307 PA_HASHMAP_FOREACH(p, s->ports, state)
308 if (!s->active_port || p->priority > s->active_port->priority)
313 s->latency_offset = s->active_port->latency_offset;
315 s->latency_offset = 0;
317 s->save_volume = data->save_volume;
318 s->save_muted = data->save_muted;
320 pa_silence_memchunk_get(
321 &core->silence_cache,
327 s->thread_info.rtpoll = NULL;
328 s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
329 s->thread_info.soft_volume = s->soft_volume;
330 s->thread_info.soft_muted = s->muted;
331 s->thread_info.state = s->state;
332 s->thread_info.rewind_nbytes = 0;
333 s->thread_info.rewind_requested = FALSE;
334 s->thread_info.max_rewind = 0;
335 s->thread_info.max_request = 0;
336 s->thread_info.requested_latency_valid = FALSE;
337 s->thread_info.requested_latency = 0;
338 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
339 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
340 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
342 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
343 s->thread_info.volume_changes_tail = NULL;
344 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
345 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
346 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
347 s->thread_info.latency_offset = s->latency_offset;
349 /* FIXME: This should probably be moved to pa_sink_put() */
350 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
353 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
355 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
356 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
359 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
360 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
364 pa_source_new_data_init(&source_data);
365 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
366 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
367 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
368 source_data.name = pa_sprintf_malloc("%s.monitor", name);
369 source_data.driver = data->driver;
370 source_data.module = data->module;
371 source_data.card = data->card;
373 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
374 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
375 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
377 s->monitor_source = pa_source_new(core, &source_data,
378 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
379 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
381 pa_source_new_data_done(&source_data);
383 if (!s->monitor_source) {
389 s->monitor_source->monitor_of = s;
391 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
392 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
393 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
398 /* Called from main context */
399 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
401 pa_bool_t suspend_change;
402 pa_sink_state_t original_state;
405 pa_assert_ctl_context();
407 if (s->state == state)
410 original_state = s->state;
413 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
414 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
417 if ((ret = s->set_state(s, state)) < 0)
421 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
424 s->set_state(s, original_state);
431 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
432 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
433 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
436 if (suspend_change) {
440 /* We're suspending or resuming, tell everyone about it */
442 PA_IDXSET_FOREACH(i, s->inputs, idx)
443 if (s->state == PA_SINK_SUSPENDED &&
444 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
445 pa_sink_input_kill(i);
447 i->suspend(i, state == PA_SINK_SUSPENDED);
449 if (s->monitor_source)
450 pa_source_sync_suspend(s->monitor_source);
456 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
462 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
463 pa_sink_flags_t flags;
466 pa_assert(!s->write_volume || cb);
470 /* Save the current flags so we can tell if they've changed */
474 /* The sink implementor is responsible for setting decibel volume support */
475 s->flags |= PA_SINK_HW_VOLUME_CTRL;
477 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
478 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
479 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
482 /* If the flags have changed after init, let any clients know via a change event */
483 if (s->state != PA_SINK_INIT && flags != s->flags)
484 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
487 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
488 pa_sink_flags_t flags;
491 pa_assert(!cb || s->set_volume);
493 s->write_volume = cb;
495 /* Save the current flags so we can tell if they've changed */
499 s->flags |= PA_SINK_DEFERRED_VOLUME;
501 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
503 /* If the flags have changed after init, let any clients know via a change event */
504 if (s->state != PA_SINK_INIT && flags != s->flags)
505 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
508 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
514 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
515 pa_sink_flags_t flags;
521 /* Save the current flags so we can tell if they've changed */
525 s->flags |= PA_SINK_HW_MUTE_CTRL;
527 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
529 /* If the flags have changed after init, let any clients know via a change event */
530 if (s->state != PA_SINK_INIT && flags != s->flags)
531 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
534 static void enable_flat_volume(pa_sink *s, pa_bool_t enable) {
535 pa_sink_flags_t flags;
539 /* Always follow the overall user preference here */
540 enable = enable && s->core->flat_volumes;
542 /* Save the current flags so we can tell if they've changed */
546 s->flags |= PA_SINK_FLAT_VOLUME;
548 s->flags &= ~PA_SINK_FLAT_VOLUME;
550 /* If the flags have changed after init, let any clients know via a change event */
551 if (s->state != PA_SINK_INIT && flags != s->flags)
552 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
555 void pa_sink_enable_decibel_volume(pa_sink *s, pa_bool_t enable) {
556 pa_sink_flags_t flags;
560 /* Save the current flags so we can tell if they've changed */
564 s->flags |= PA_SINK_DECIBEL_VOLUME;
565 enable_flat_volume(s, TRUE);
567 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
568 enable_flat_volume(s, FALSE);
571 /* If the flags have changed after init, let any clients know via a change event */
572 if (s->state != PA_SINK_INIT && flags != s->flags)
573 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
576 /* Called from main context */
577 void pa_sink_put(pa_sink* s) {
578 pa_sink_assert_ref(s);
579 pa_assert_ctl_context();
581 pa_assert(s->state == PA_SINK_INIT);
582 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || s->input_to_master);
584 /* The following fields must be initialized properly when calling _put() */
585 pa_assert(s->asyncmsgq);
586 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
588 /* Generally, flags should be initialized via pa_sink_new(). As a
589 * special exception we allow some volume related flags to be set
590 * between _new() and _put() by the callback setter functions above.
592 * Thus we implement a couple safeguards here which ensure the above
593 * setters were used (or at least the implementor made manual changes
594 * in a compatible way).
596 * Note: All of these flags set here can change over the life time
598 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
599 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
600 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
602 /* XXX: Currently decibel volume is disabled for all sinks that use volume
603 * sharing. When the master sink supports decibel volume, it would be good
604 * to have the flag also in the filter sink, but currently we don't do that
605 * so that the flags of the filter sink never change when it's moved from
606 * a master sink to another. One solution for this problem would be to
607 * remove user-visible volume altogether from filter sinks when volume
608 * sharing is used, but the current approach was easier to implement... */
609 /* We always support decibel volumes in software, otherwise we leave it to
610 * the sink implementor to set this flag as needed.
612 * Note: This flag can also change over the life time of the sink. */
613 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
614 pa_sink_enable_decibel_volume(s, TRUE);
616 /* If the sink implementor support DB volumes by itself, we should always
617 * try and enable flat volumes too */
618 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
619 enable_flat_volume(s, TRUE);
621 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
622 pa_sink *root_sink = pa_sink_get_master(s);
624 pa_assert(root_sink);
626 s->reference_volume = root_sink->reference_volume;
627 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
629 s->real_volume = root_sink->real_volume;
630 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
632 /* We assume that if the sink implementor changed the default
633 * volume he did so in real_volume, because that is the usual
634 * place where he is supposed to place his changes. */
635 s->reference_volume = s->real_volume;
637 s->thread_info.soft_volume = s->soft_volume;
638 s->thread_info.soft_muted = s->muted;
639 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
641 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
642 || (s->base_volume == PA_VOLUME_NORM
643 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
644 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
645 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
646 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
647 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
649 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
650 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
651 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
653 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
655 pa_source_put(s->monitor_source);
657 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
658 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
661 /* Called from main context */
662 void pa_sink_unlink(pa_sink* s) {
664 pa_sink_input *i, *j = NULL;
667 pa_assert_ctl_context();
669 /* Please note that pa_sink_unlink() does more than simply
670 * reversing pa_sink_put(). It also undoes the registrations
671 * already done in pa_sink_new()! */
673 /* All operations here shall be idempotent, i.e. pa_sink_unlink()
674 * may be called multiple times on the same sink without bad
677 linked = PA_SINK_IS_LINKED(s->state);
680 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
682 if (s->state != PA_SINK_UNLINKED)
683 pa_namereg_unregister(s->core, s->name);
684 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
687 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
689 while ((i = pa_idxset_first(s->inputs, NULL))) {
691 pa_sink_input_kill(i);
696 sink_set_state(s, PA_SINK_UNLINKED);
698 s->state = PA_SINK_UNLINKED;
702 if (s->monitor_source)
703 pa_source_unlink(s->monitor_source);
706 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
707 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
711 /* Called from main context */
712 static void sink_free(pa_object *o) {
713 pa_sink *s = PA_SINK(o);
717 pa_assert_ctl_context();
718 pa_assert(pa_sink_refcnt(s) == 0);
720 if (PA_SINK_IS_LINKED(s->state))
723 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
725 if (s->monitor_source) {
726 pa_source_unref(s->monitor_source);
727 s->monitor_source = NULL;
730 pa_idxset_free(s->inputs, NULL, NULL);
732 while ((i = pa_hashmap_steal_first(s->thread_info.inputs)))
733 pa_sink_input_unref(i);
735 pa_hashmap_free(s->thread_info.inputs, NULL, NULL);
737 if (s->silence.memblock)
738 pa_memblock_unref(s->silence.memblock);
744 pa_proplist_free(s->proplist);
747 pa_device_port_hashmap_free(s->ports);
752 /* Called from main context, and not while the IO thread is active, please */
753 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
754 pa_sink_assert_ref(s);
755 pa_assert_ctl_context();
759 if (s->monitor_source)
760 pa_source_set_asyncmsgq(s->monitor_source, q);
763 /* Called from main context, and not while the IO thread is active, please */
764 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
765 pa_sink_assert_ref(s);
766 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 s->flags = (s->flags & ~mask) | (value & mask);
776 pa_source_update_flags(s->monitor_source,
777 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
778 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
779 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
780 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SINK_DYNAMIC_LATENCY : 0));
783 /* Called from IO context, or before _put() from main context */
784 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
785 pa_sink_assert_ref(s);
786 pa_sink_assert_io_context(s);
788 s->thread_info.rtpoll = p;
790 if (s->monitor_source)
791 pa_source_set_rtpoll(s->monitor_source, p);
794 /* Called from main context */
795 int pa_sink_update_status(pa_sink*s) {
796 pa_sink_assert_ref(s);
797 pa_assert_ctl_context();
798 pa_assert(PA_SINK_IS_LINKED(s->state));
800 if (s->state == PA_SINK_SUSPENDED)
803 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
806 /* Called from any context - must be threadsafe */
807 void pa_sink_set_mixer_dirty(pa_sink *s, pa_bool_t is_dirty)
809 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
812 /* Called from main context */
813 int pa_sink_suspend(pa_sink *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
814 pa_sink_assert_ref(s);
815 pa_assert_ctl_context();
816 pa_assert(PA_SINK_IS_LINKED(s->state));
817 pa_assert(cause != 0);
820 s->suspend_cause |= cause;
821 s->monitor_source->suspend_cause |= cause;
823 s->suspend_cause &= ~cause;
824 s->monitor_source->suspend_cause &= ~cause;
827 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
828 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
829 it'll be handled just fine. */
830 pa_sink_set_mixer_dirty(s, FALSE);
831 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
832 if (s->active_port && s->set_port) {
833 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
834 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
835 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
838 s->set_port(s, s->active_port);
848 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
851 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
853 if (s->suspend_cause)
854 return sink_set_state(s, PA_SINK_SUSPENDED);
856 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
859 /* Called from main context */
860 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
861 pa_sink_input *i, *n;
864 pa_sink_assert_ref(s);
865 pa_assert_ctl_context();
866 pa_assert(PA_SINK_IS_LINKED(s->state));
871 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
872 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
874 pa_sink_input_ref(i);
876 if (pa_sink_input_start_move(i) >= 0)
879 pa_sink_input_unref(i);
885 /* Called from main context */
886 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, pa_bool_t save) {
889 pa_sink_assert_ref(s);
890 pa_assert_ctl_context();
891 pa_assert(PA_SINK_IS_LINKED(s->state));
894 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
895 if (pa_sink_input_finish_move(i, s, save) < 0)
896 pa_sink_input_fail_move(i);
898 pa_sink_input_unref(i);
901 pa_queue_free(q, NULL);
904 /* Called from main context */
905 void pa_sink_move_all_fail(pa_queue *q) {
908 pa_assert_ctl_context();
911 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
912 pa_sink_input_fail_move(i);
913 pa_sink_input_unref(i);
916 pa_queue_free(q, NULL);
919 /* Called from IO thread context */
920 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
924 pa_sink_assert_ref(s);
925 pa_sink_assert_io_context(s);
926 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
928 /* If nobody requested this and this is actually no real rewind
929 * then we can short cut this. Please note that this means that
930 * not all rewind requests triggered upstream will always be
931 * translated in actual requests! */
932 if (!s->thread_info.rewind_requested && nbytes <= 0)
935 s->thread_info.rewind_nbytes = 0;
936 s->thread_info.rewind_requested = FALSE;
938 if (s->thread_info.state == PA_SINK_SUSPENDED)
942 pa_log_debug("Processing rewind...");
943 if (s->flags & PA_SINK_DEFERRED_VOLUME)
944 pa_sink_volume_change_rewind(s, nbytes);
947 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
948 pa_sink_input_assert_ref(i);
949 pa_sink_input_process_rewind(i, nbytes);
953 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
954 pa_source_process_rewind(s->monitor_source, nbytes);
958 /* Called from IO thread context */
959 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
963 size_t mixlength = *length;
965 pa_sink_assert_ref(s);
966 pa_sink_assert_io_context(s);
969 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
970 pa_sink_input_assert_ref(i);
972 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
974 if (mixlength == 0 || info->chunk.length < mixlength)
975 mixlength = info->chunk.length;
977 if (pa_memblock_is_silence(info->chunk.memblock)) {
978 pa_memblock_unref(info->chunk.memblock);
982 info->userdata = pa_sink_input_ref(i);
984 pa_assert(info->chunk.memblock);
985 pa_assert(info->chunk.length > 0);
998 /* Called from IO thread context */
999 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1003 unsigned n_unreffed = 0;
1005 pa_sink_assert_ref(s);
1006 pa_sink_assert_io_context(s);
1008 pa_assert(result->memblock);
1009 pa_assert(result->length > 0);
1011 /* We optimize for the case where the order of the inputs has not changed */
1013 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1015 pa_mix_info* m = NULL;
1017 pa_sink_input_assert_ref(i);
1019 /* Let's try to find the matching entry info the pa_mix_info array */
1020 for (j = 0; j < n; j ++) {
1022 if (info[p].userdata == i) {
1032 /* Drop read data */
1033 pa_sink_input_drop(i, result->length);
1035 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1037 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1038 void *ostate = NULL;
1039 pa_source_output *o;
1042 if (m && m->chunk.memblock) {
1044 pa_memblock_ref(c.memblock);
1045 pa_assert(result->length <= c.length);
1046 c.length = result->length;
1048 pa_memchunk_make_writable(&c, 0);
1049 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1052 pa_memblock_ref(c.memblock);
1053 pa_assert(result->length <= c.length);
1054 c.length = result->length;
1057 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1058 pa_source_output_assert_ref(o);
1059 pa_assert(o->direct_on_input == i);
1060 pa_source_post_direct(s->monitor_source, o, &c);
1063 pa_memblock_unref(c.memblock);
1068 if (m->chunk.memblock)
1069 pa_memblock_unref(m->chunk.memblock);
1070 pa_memchunk_reset(&m->chunk);
1072 pa_sink_input_unref(m->userdata);
1079 /* Now drop references to entries that are included in the
1080 * pa_mix_info array but don't exist anymore */
1082 if (n_unreffed < n) {
1083 for (; n > 0; info++, n--) {
1085 pa_sink_input_unref(info->userdata);
1086 if (info->chunk.memblock)
1087 pa_memblock_unref(info->chunk.memblock);
1091 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1092 pa_source_post(s->monitor_source, result);
1095 /* Called from IO thread context */
1096 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1097 pa_mix_info info[MAX_MIX_CHANNELS];
1099 size_t block_size_max;
1101 pa_sink_assert_ref(s);
1102 pa_sink_assert_io_context(s);
1103 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1104 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1107 pa_assert(!s->thread_info.rewind_requested);
1108 pa_assert(s->thread_info.rewind_nbytes == 0);
1110 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1111 result->memblock = pa_memblock_ref(s->silence.memblock);
1112 result->index = s->silence.index;
1113 result->length = PA_MIN(s->silence.length, length);
1120 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1122 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1123 if (length > block_size_max)
1124 length = pa_frame_align(block_size_max, &s->sample_spec);
1126 pa_assert(length > 0);
1128 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1132 *result = s->silence;
1133 pa_memblock_ref(result->memblock);
1135 if (result->length > length)
1136 result->length = length;
1138 } else if (n == 1) {
1141 *result = info[0].chunk;
1142 pa_memblock_ref(result->memblock);
1144 if (result->length > length)
1145 result->length = length;
1147 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1149 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1150 pa_memblock_unref(result->memblock);
1151 pa_silence_memchunk_get(&s->core->silence_cache,
1156 } else if (!pa_cvolume_is_norm(&volume)) {
1157 pa_memchunk_make_writable(result, 0);
1158 pa_volume_memchunk(result, &s->sample_spec, &volume);
1162 result->memblock = pa_memblock_new(s->core->mempool, length);
1164 ptr = pa_memblock_acquire(result->memblock);
1165 result->length = pa_mix(info, n,
1168 &s->thread_info.soft_volume,
1169 s->thread_info.soft_muted);
1170 pa_memblock_release(result->memblock);
1175 inputs_drop(s, info, n, result);
1180 /* Called from IO thread context */
1181 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1182 pa_mix_info info[MAX_MIX_CHANNELS];
1184 size_t length, block_size_max;
1186 pa_sink_assert_ref(s);
1187 pa_sink_assert_io_context(s);
1188 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1190 pa_assert(target->memblock);
1191 pa_assert(target->length > 0);
1192 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1194 pa_assert(!s->thread_info.rewind_requested);
1195 pa_assert(s->thread_info.rewind_nbytes == 0);
1197 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1198 pa_silence_memchunk(target, &s->sample_spec);
1204 length = target->length;
1205 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1206 if (length > block_size_max)
1207 length = pa_frame_align(block_size_max, &s->sample_spec);
1209 pa_assert(length > 0);
1211 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1214 if (target->length > length)
1215 target->length = length;
1217 pa_silence_memchunk(target, &s->sample_spec);
1218 } else if (n == 1) {
1221 if (target->length > length)
1222 target->length = length;
1224 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1226 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1227 pa_silence_memchunk(target, &s->sample_spec);
1231 vchunk = info[0].chunk;
1232 pa_memblock_ref(vchunk.memblock);
1234 if (vchunk.length > length)
1235 vchunk.length = length;
1237 if (!pa_cvolume_is_norm(&volume)) {
1238 pa_memchunk_make_writable(&vchunk, 0);
1239 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1242 pa_memchunk_memcpy(target, &vchunk);
1243 pa_memblock_unref(vchunk.memblock);
1249 ptr = pa_memblock_acquire(target->memblock);
1251 target->length = pa_mix(info, n,
1252 (uint8_t*) ptr + target->index, length,
1254 &s->thread_info.soft_volume,
1255 s->thread_info.soft_muted);
1257 pa_memblock_release(target->memblock);
1260 inputs_drop(s, info, n, target);
1265 /* Called from IO thread context */
1266 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1270 pa_sink_assert_ref(s);
1271 pa_sink_assert_io_context(s);
1272 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1274 pa_assert(target->memblock);
1275 pa_assert(target->length > 0);
1276 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1278 pa_assert(!s->thread_info.rewind_requested);
1279 pa_assert(s->thread_info.rewind_nbytes == 0);
1281 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1282 pa_silence_memchunk(target, &s->sample_spec);
1295 pa_sink_render_into(s, &chunk);
1304 /* Called from IO thread context */
1305 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1306 pa_sink_assert_ref(s);
1307 pa_sink_assert_io_context(s);
1308 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1309 pa_assert(length > 0);
1310 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1313 pa_assert(!s->thread_info.rewind_requested);
1314 pa_assert(s->thread_info.rewind_nbytes == 0);
1318 pa_sink_render(s, length, result);
1320 if (result->length < length) {
1323 pa_memchunk_make_writable(result, length);
1325 chunk.memblock = result->memblock;
1326 chunk.index = result->index + result->length;
1327 chunk.length = length - result->length;
1329 pa_sink_render_into_full(s, &chunk);
1331 result->length = length;
1337 /* Called from main thread */
1338 pa_bool_t pa_sink_update_rate(pa_sink *s, uint32_t rate, pa_bool_t passthrough)
1340 if (s->update_rate) {
1341 uint32_t desired_rate = rate;
1342 uint32_t default_rate = s->default_sample_rate;
1343 uint32_t alternate_rate = s->alternate_sample_rate;
1346 pa_bool_t use_alternate = FALSE;
1348 if (PA_UNLIKELY(default_rate == alternate_rate)) {
1349 pa_log_warn("Default and alternate sample rates are the same.");
1353 if (PA_SINK_IS_RUNNING(s->state)) {
1354 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1355 s->sample_spec.rate);
1359 if (s->monitor_source) {
1360 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == TRUE) {
1361 pa_log_info("Cannot update rate, monitor source is RUNNING");
1366 if (PA_UNLIKELY (desired_rate < 8000 ||
1367 desired_rate > PA_RATE_MAX))
1371 pa_assert(default_rate % 4000 || default_rate % 11025);
1372 pa_assert(alternate_rate % 4000 || alternate_rate % 11025);
1374 if (default_rate % 4000) {
1375 /* default is a 11025 multiple */
1376 if ((alternate_rate % 4000 == 0) && (desired_rate % 4000 == 0))
1379 /* default is 4000 multiple */
1380 if ((alternate_rate % 11025 == 0) && (desired_rate % 11025 == 0))
1385 desired_rate = alternate_rate;
1387 desired_rate = default_rate;
1389 desired_rate = rate; /* use stream sampling rate, discard default/alternate settings */
1392 if (!passthrough && pa_sink_used_by(s) > 0)
1395 pa_sink_suspend(s, TRUE, PA_SUSPEND_IDLE); /* needed before rate update, will be resumed automatically */
1397 if (s->update_rate(s, desired_rate) == TRUE) {
1398 /* update monitor source as well */
1399 if (s->monitor_source && !passthrough)
1400 pa_source_update_rate(s->monitor_source, desired_rate, FALSE);
1401 pa_log_info("Changed sampling rate successfully");
1403 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1404 if (i->state == PA_SINK_INPUT_CORKED)
1405 pa_sink_input_update_rate(i);
1414 /* Called from main thread */
1415 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1418 pa_sink_assert_ref(s);
1419 pa_assert_ctl_context();
1420 pa_assert(PA_SINK_IS_LINKED(s->state));
1422 /* The returned value is supposed to be in the time domain of the sound card! */
1424 if (s->state == PA_SINK_SUSPENDED)
1427 if (!(s->flags & PA_SINK_LATENCY))
1430 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1432 /* usec is unsigned, so check that the offset can be added to usec without
1434 if (-s->latency_offset <= (int64_t) usec)
1435 usec += s->latency_offset;
1442 /* Called from IO thread */
1443 pa_usec_t pa_sink_get_latency_within_thread(pa_sink *s) {
1447 pa_sink_assert_ref(s);
1448 pa_sink_assert_io_context(s);
1449 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1451 /* The returned value is supposed to be in the time domain of the sound card! */
1453 if (s->thread_info.state == PA_SINK_SUSPENDED)
1456 if (!(s->flags & PA_SINK_LATENCY))
1459 o = PA_MSGOBJECT(s);
1461 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1463 if (o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1466 /* usec is unsigned, so check that the offset can be added to usec without
1468 if (-s->thread_info.latency_offset <= (int64_t) usec)
1469 usec += s->thread_info.latency_offset;
1476 /* Called from the main thread (and also from the IO thread while the main
1477 * thread is waiting).
1479 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1480 * set. Instead, flat volume mode is detected by checking whether the root sink
1481 * has the flag set. */
1482 pa_bool_t pa_sink_flat_volume_enabled(pa_sink *s) {
1483 pa_sink_assert_ref(s);
1485 s = pa_sink_get_master(s);
1488 return (s->flags & PA_SINK_FLAT_VOLUME);
1493 /* Called from the main thread (and also from the IO thread while the main
1494 * thread is waiting). */
1495 pa_sink *pa_sink_get_master(pa_sink *s) {
1496 pa_sink_assert_ref(s);
1498 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1499 if (PA_UNLIKELY(!s->input_to_master))
1502 s = s->input_to_master->sink;
1508 /* Called from main context */
1509 pa_bool_t pa_sink_is_passthrough(pa_sink *s) {
1510 pa_sink_input *alt_i;
1513 pa_sink_assert_ref(s);
1515 /* one and only one PASSTHROUGH input can possibly be connected */
1516 if (pa_idxset_size(s->inputs) == 1) {
1517 alt_i = pa_idxset_first(s->inputs, &idx);
1519 if (pa_sink_input_is_passthrough(alt_i))
1526 /* Called from main context */
1527 void pa_sink_enter_passthrough(pa_sink *s) {
1530 /* disable the monitor in passthrough mode */
1531 if (s->monitor_source)
1532 pa_source_suspend(s->monitor_source, TRUE, PA_SUSPEND_PASSTHROUGH);
1534 /* set the volume to NORM */
1535 s->saved_volume = *pa_sink_get_volume(s, TRUE);
1536 s->saved_save_volume = s->save_volume;
1538 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1539 pa_sink_set_volume(s, &volume, TRUE, FALSE);
1542 /* Called from main context */
1543 void pa_sink_leave_passthrough(pa_sink *s) {
1544 /* Unsuspend monitor */
1545 if (s->monitor_source)
1546 pa_source_suspend(s->monitor_source, FALSE, PA_SUSPEND_PASSTHROUGH);
1548 /* Restore sink volume to what it was before we entered passthrough mode */
1549 pa_sink_set_volume(s, &s->saved_volume, TRUE, s->saved_save_volume);
1551 pa_cvolume_init(&s->saved_volume);
1552 s->saved_save_volume = FALSE;
1555 /* Called from main context. */
1556 static void compute_reference_ratio(pa_sink_input *i) {
1558 pa_cvolume remapped;
1561 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1564 * Calculates the reference ratio from the sink's reference
1565 * volume. This basically calculates:
1567 * i->reference_ratio = i->volume / i->sink->reference_volume
1570 remapped = i->sink->reference_volume;
1571 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1573 i->reference_ratio.channels = i->sample_spec.channels;
1575 for (c = 0; c < i->sample_spec.channels; c++) {
1577 /* We don't update when the sink volume is 0 anyway */
1578 if (remapped.values[c] <= PA_VOLUME_MUTED)
1581 /* Don't update the reference ratio unless necessary */
1582 if (pa_sw_volume_multiply(
1583 i->reference_ratio.values[c],
1584 remapped.values[c]) == i->volume.values[c])
1587 i->reference_ratio.values[c] = pa_sw_volume_divide(
1588 i->volume.values[c],
1589 remapped.values[c]);
1593 /* Called from main context. Only called for the root sink in volume sharing
1594 * cases, except for internal recursive calls. */
1595 static void compute_reference_ratios(pa_sink *s) {
1599 pa_sink_assert_ref(s);
1600 pa_assert_ctl_context();
1601 pa_assert(PA_SINK_IS_LINKED(s->state));
1602 pa_assert(pa_sink_flat_volume_enabled(s));
1604 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1605 compute_reference_ratio(i);
1607 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1608 compute_reference_ratios(i->origin_sink);
1612 /* Called from main context. Only called for the root sink in volume sharing
1613 * cases, except for internal recursive calls. */
1614 static void compute_real_ratios(pa_sink *s) {
1618 pa_sink_assert_ref(s);
1619 pa_assert_ctl_context();
1620 pa_assert(PA_SINK_IS_LINKED(s->state));
1621 pa_assert(pa_sink_flat_volume_enabled(s));
1623 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1625 pa_cvolume remapped;
1627 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1628 /* The origin sink uses volume sharing, so this input's real ratio
1629 * is handled as a special case - the real ratio must be 0 dB, and
1630 * as a result i->soft_volume must equal i->volume_factor. */
1631 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1632 i->soft_volume = i->volume_factor;
1634 compute_real_ratios(i->origin_sink);
1640 * This basically calculates:
1642 * i->real_ratio := i->volume / s->real_volume
1643 * i->soft_volume := i->real_ratio * i->volume_factor
1646 remapped = s->real_volume;
1647 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1649 i->real_ratio.channels = i->sample_spec.channels;
1650 i->soft_volume.channels = i->sample_spec.channels;
1652 for (c = 0; c < i->sample_spec.channels; c++) {
1654 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1655 /* We leave i->real_ratio untouched */
1656 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1660 /* Don't lose accuracy unless necessary */
1661 if (pa_sw_volume_multiply(
1662 i->real_ratio.values[c],
1663 remapped.values[c]) != i->volume.values[c])
1665 i->real_ratio.values[c] = pa_sw_volume_divide(
1666 i->volume.values[c],
1667 remapped.values[c]);
1669 i->soft_volume.values[c] = pa_sw_volume_multiply(
1670 i->real_ratio.values[c],
1671 i->volume_factor.values[c]);
1674 /* We don't copy the soft_volume to the thread_info data
1675 * here. That must be done by the caller */
1679 static pa_cvolume *cvolume_remap_minimal_impact(
1681 const pa_cvolume *template,
1682 const pa_channel_map *from,
1683 const pa_channel_map *to) {
1688 pa_assert(template);
1691 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1692 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1694 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1695 * mapping from sink input to sink volumes:
1697 * If template is a possible remapping from v it is used instead
1698 * of remapping anew.
1700 * If the channel maps don't match we set an all-channel volume on
1701 * the sink to ensure that changing a volume on one stream has no
1702 * effect that cannot be compensated for in another stream that
1703 * does not have the same channel map as the sink. */
1705 if (pa_channel_map_equal(from, to))
1709 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1714 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1718 /* Called from main thread. Only called for the root sink in volume sharing
1719 * cases, except for internal recursive calls. */
1720 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1724 pa_sink_assert_ref(s);
1725 pa_assert(max_volume);
1726 pa_assert(channel_map);
1727 pa_assert(pa_sink_flat_volume_enabled(s));
1729 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1730 pa_cvolume remapped;
1732 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1733 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1735 /* Ignore this input. The origin sink uses volume sharing, so this
1736 * input's volume will be set to be equal to the root sink's real
1737 * volume. Obviously this input's current volume must not then
1738 * affect what the root sink's real volume will be. */
1742 remapped = i->volume;
1743 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1744 pa_cvolume_merge(max_volume, max_volume, &remapped);
1748 /* Called from main thread. Only called for the root sink in volume sharing
1749 * cases, except for internal recursive calls. */
1750 static pa_bool_t has_inputs(pa_sink *s) {
1754 pa_sink_assert_ref(s);
1756 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1757 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1764 /* Called from main thread. Only called for the root sink in volume sharing
1765 * cases, except for internal recursive calls. */
1766 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1770 pa_sink_assert_ref(s);
1771 pa_assert(new_volume);
1772 pa_assert(channel_map);
1774 s->real_volume = *new_volume;
1775 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1777 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1778 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1779 if (pa_sink_flat_volume_enabled(s)) {
1780 pa_cvolume old_volume = i->volume;
1782 /* Follow the root sink's real volume. */
1783 i->volume = *new_volume;
1784 pa_cvolume_remap(&i->volume, channel_map, &i->channel_map);
1785 compute_reference_ratio(i);
1787 /* The volume changed, let's tell people so */
1788 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1789 if (i->volume_changed)
1790 i->volume_changed(i);
1792 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1796 update_real_volume(i->origin_sink, new_volume, channel_map);
1801 /* Called from main thread. Only called for the root sink in shared volume
1803 static void compute_real_volume(pa_sink *s) {
1804 pa_sink_assert_ref(s);
1805 pa_assert_ctl_context();
1806 pa_assert(PA_SINK_IS_LINKED(s->state));
1807 pa_assert(pa_sink_flat_volume_enabled(s));
1808 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1810 /* This determines the maximum volume of all streams and sets
1811 * s->real_volume accordingly. */
1813 if (!has_inputs(s)) {
1814 /* In the special case that we have no sink inputs we leave the
1815 * volume unmodified. */
1816 update_real_volume(s, &s->reference_volume, &s->channel_map);
1820 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1822 /* First let's determine the new maximum volume of all inputs
1823 * connected to this sink */
1824 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1825 update_real_volume(s, &s->real_volume, &s->channel_map);
1827 /* Then, let's update the real ratios/soft volumes of all inputs
1828 * connected to this sink */
1829 compute_real_ratios(s);
1832 /* Called from main thread. Only called for the root sink in shared volume
1833 * cases, except for internal recursive calls. */
1834 static void propagate_reference_volume(pa_sink *s) {
1838 pa_sink_assert_ref(s);
1839 pa_assert_ctl_context();
1840 pa_assert(PA_SINK_IS_LINKED(s->state));
1841 pa_assert(pa_sink_flat_volume_enabled(s));
1843 /* This is called whenever the sink volume changes that is not
1844 * caused by a sink input volume change. We need to fix up the
1845 * sink input volumes accordingly */
1847 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1848 pa_cvolume old_volume;
1850 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1851 propagate_reference_volume(i->origin_sink);
1853 /* Since the origin sink uses volume sharing, this input's volume
1854 * needs to be updated to match the root sink's real volume, but
1855 * that will be done later in update_shared_real_volume(). */
1859 old_volume = i->volume;
1861 /* This basically calculates:
1863 * i->volume := s->reference_volume * i->reference_ratio */
1865 i->volume = s->reference_volume;
1866 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
1867 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
1869 /* The volume changed, let's tell people so */
1870 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1872 if (i->volume_changed)
1873 i->volume_changed(i);
1875 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1880 /* Called from main thread. Only called for the root sink in volume sharing
1881 * cases, except for internal recursive calls. The return value indicates
1882 * whether any reference volume actually changed. */
1883 static pa_bool_t update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1885 pa_bool_t reference_volume_changed;
1889 pa_sink_assert_ref(s);
1890 pa_assert(PA_SINK_IS_LINKED(s->state));
1892 pa_assert(channel_map);
1893 pa_assert(pa_cvolume_valid(v));
1896 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1898 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1899 s->reference_volume = volume;
1901 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1903 if (reference_volume_changed)
1904 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1905 else if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1906 /* If the root sink's volume doesn't change, then there can't be any
1907 * changes in the other sinks in the sink tree either.
1909 * It's probably theoretically possible that even if the root sink's
1910 * volume changes slightly, some filter sink doesn't change its volume
1911 * due to rounding errors. If that happens, we still want to propagate
1912 * the changed root sink volume to the sinks connected to the
1913 * intermediate sink that didn't change its volume. This theoretical
1914 * possibility is the reason why we have that !(s->flags &
1915 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1916 * notice even if we returned here FALSE always if
1917 * reference_volume_changed is FALSE. */
1920 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1921 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1922 update_reference_volume(i->origin_sink, v, channel_map, FALSE);
1928 /* Called from main thread */
1929 void pa_sink_set_volume(
1931 const pa_cvolume *volume,
1935 pa_cvolume new_reference_volume;
1938 pa_sink_assert_ref(s);
1939 pa_assert_ctl_context();
1940 pa_assert(PA_SINK_IS_LINKED(s->state));
1941 pa_assert(!volume || pa_cvolume_valid(volume));
1942 pa_assert(volume || pa_sink_flat_volume_enabled(s));
1943 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1945 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
1946 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1947 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1948 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
1952 /* In case of volume sharing, the volume is set for the root sink first,
1953 * from which it's then propagated to the sharing sinks. */
1954 root_sink = pa_sink_get_master(s);
1956 if (PA_UNLIKELY(!root_sink))
1959 /* As a special exception we accept mono volumes on all sinks --
1960 * even on those with more complex channel maps */
1963 if (pa_cvolume_compatible(volume, &s->sample_spec))
1964 new_reference_volume = *volume;
1966 new_reference_volume = s->reference_volume;
1967 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1970 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
1972 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
1973 if (pa_sink_flat_volume_enabled(root_sink)) {
1974 /* OK, propagate this volume change back to the inputs */
1975 propagate_reference_volume(root_sink);
1977 /* And now recalculate the real volume */
1978 compute_real_volume(root_sink);
1980 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
1984 /* If volume is NULL we synchronize the sink's real and
1985 * reference volumes with the stream volumes. */
1987 pa_assert(pa_sink_flat_volume_enabled(root_sink));
1989 /* Ok, let's determine the new real volume */
1990 compute_real_volume(root_sink);
1992 /* Let's 'push' the reference volume if necessary */
1993 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
1994 /* If the sink and it's root don't have the same number of channels, we need to remap */
1995 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
1996 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
1997 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
1999 /* Now that the reference volume is updated, we can update the streams'
2000 * reference ratios. */
2001 compute_reference_ratios(root_sink);
2004 if (root_sink->set_volume) {
2005 /* If we have a function set_volume(), then we do not apply a
2006 * soft volume by default. However, set_volume() is free to
2007 * apply one to root_sink->soft_volume */
2009 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2010 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2011 root_sink->set_volume(root_sink);
2014 /* If we have no function set_volume(), then the soft volume
2015 * becomes the real volume */
2016 root_sink->soft_volume = root_sink->real_volume;
2018 /* This tells the sink that soft volume and/or real volume changed */
2020 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2023 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2024 * Only to be called by sink implementor */
2025 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2027 pa_sink_assert_ref(s);
2028 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2030 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2031 pa_sink_assert_io_context(s);
2033 pa_assert_ctl_context();
2036 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2038 s->soft_volume = *volume;
2040 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2041 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2043 s->thread_info.soft_volume = s->soft_volume;
2046 /* Called from the main thread. Only called for the root sink in volume sharing
2047 * cases, except for internal recursive calls. */
2048 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2052 pa_sink_assert_ref(s);
2053 pa_assert(old_real_volume);
2054 pa_assert_ctl_context();
2055 pa_assert(PA_SINK_IS_LINKED(s->state));
2057 /* This is called when the hardware's real volume changes due to
2058 * some external event. We copy the real volume into our
2059 * reference volume and then rebuild the stream volumes based on
2060 * i->real_ratio which should stay fixed. */
2062 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2063 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2066 /* 1. Make the real volume the reference volume */
2067 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
2070 if (pa_sink_flat_volume_enabled(s)) {
2072 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2073 pa_cvolume old_volume = i->volume;
2075 /* 2. Since the sink's reference and real volumes are equal
2076 * now our ratios should be too. */
2077 i->reference_ratio = i->real_ratio;
2079 /* 3. Recalculate the new stream reference volume based on the
2080 * reference ratio and the sink's reference volume.
2082 * This basically calculates:
2084 * i->volume = s->reference_volume * i->reference_ratio
2086 * This is identical to propagate_reference_volume() */
2087 i->volume = s->reference_volume;
2088 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
2089 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
2091 /* Notify if something changed */
2092 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
2094 if (i->volume_changed)
2095 i->volume_changed(i);
2097 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
2100 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2101 propagate_real_volume(i->origin_sink, old_real_volume);
2105 /* Something got changed in the hardware. It probably makes sense
2106 * to save changed hw settings given that hw volume changes not
2107 * triggered by PA are almost certainly done by the user. */
2108 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2109 s->save_volume = TRUE;
2112 /* Called from io thread */
2113 void pa_sink_update_volume_and_mute(pa_sink *s) {
2115 pa_sink_assert_io_context(s);
2117 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2120 /* Called from main thread */
2121 const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_bool_t force_refresh) {
2122 pa_sink_assert_ref(s);
2123 pa_assert_ctl_context();
2124 pa_assert(PA_SINK_IS_LINKED(s->state));
2126 if (s->refresh_volume || force_refresh) {
2127 struct pa_cvolume old_real_volume;
2129 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2131 old_real_volume = s->real_volume;
2133 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2136 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2138 update_real_volume(s, &s->real_volume, &s->channel_map);
2139 propagate_real_volume(s, &old_real_volume);
2142 return &s->reference_volume;
2145 /* Called from main thread. In volume sharing cases, only the root sink may
2147 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2148 pa_cvolume old_real_volume;
2150 pa_sink_assert_ref(s);
2151 pa_assert_ctl_context();
2152 pa_assert(PA_SINK_IS_LINKED(s->state));
2153 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2155 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2157 old_real_volume = s->real_volume;
2158 update_real_volume(s, new_real_volume, &s->channel_map);
2159 propagate_real_volume(s, &old_real_volume);
2162 /* Called from main thread */
2163 void pa_sink_set_mute(pa_sink *s, pa_bool_t mute, pa_bool_t save) {
2164 pa_bool_t old_muted;
2166 pa_sink_assert_ref(s);
2167 pa_assert_ctl_context();
2168 pa_assert(PA_SINK_IS_LINKED(s->state));
2170 old_muted = s->muted;
2172 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
2174 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute)
2177 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2179 if (old_muted != s->muted)
2180 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2183 /* Called from main thread */
2184 pa_bool_t pa_sink_get_mute(pa_sink *s, pa_bool_t force_refresh) {
2186 pa_sink_assert_ref(s);
2187 pa_assert_ctl_context();
2188 pa_assert(PA_SINK_IS_LINKED(s->state));
2190 if (s->refresh_muted || force_refresh) {
2191 pa_bool_t old_muted = s->muted;
2193 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_mute)
2196 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
2198 if (old_muted != s->muted) {
2199 s->save_muted = TRUE;
2201 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2203 /* Make sure the soft mute status stays in sync */
2204 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2211 /* Called from main thread */
2212 void pa_sink_mute_changed(pa_sink *s, pa_bool_t new_muted) {
2213 pa_sink_assert_ref(s);
2214 pa_assert_ctl_context();
2215 pa_assert(PA_SINK_IS_LINKED(s->state));
2217 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2219 if (s->muted == new_muted)
2222 s->muted = new_muted;
2223 s->save_muted = TRUE;
2225 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2228 /* Called from main thread */
2229 pa_bool_t pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2230 pa_sink_assert_ref(s);
2231 pa_assert_ctl_context();
2234 pa_proplist_update(s->proplist, mode, p);
2236 if (PA_SINK_IS_LINKED(s->state)) {
2237 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2238 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2244 /* Called from main thread */
2245 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2246 void pa_sink_set_description(pa_sink *s, const char *description) {
2248 pa_sink_assert_ref(s);
2249 pa_assert_ctl_context();
2251 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2254 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2256 if (old && description && pa_streq(old, description))
2260 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2262 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2264 if (s->monitor_source) {
2267 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2268 pa_source_set_description(s->monitor_source, n);
2272 if (PA_SINK_IS_LINKED(s->state)) {
2273 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2274 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2278 /* Called from main thread */
2279 unsigned pa_sink_linked_by(pa_sink *s) {
2282 pa_sink_assert_ref(s);
2283 pa_assert_ctl_context();
2284 pa_assert(PA_SINK_IS_LINKED(s->state));
2286 ret = pa_idxset_size(s->inputs);
2288 /* We add in the number of streams connected to us here. Please
2289 * note the asymmetry to pa_sink_used_by()! */
2291 if (s->monitor_source)
2292 ret += pa_source_linked_by(s->monitor_source);
2297 /* Called from main thread */
2298 unsigned pa_sink_used_by(pa_sink *s) {
2301 pa_sink_assert_ref(s);
2302 pa_assert_ctl_context();
2303 pa_assert(PA_SINK_IS_LINKED(s->state));
2305 ret = pa_idxset_size(s->inputs);
2306 pa_assert(ret >= s->n_corked);
2308 /* Streams connected to our monitor source do not matter for
2309 * pa_sink_used_by()!.*/
2311 return ret - s->n_corked;
2314 /* Called from main thread */
2315 unsigned pa_sink_check_suspend(pa_sink *s) {
2320 pa_sink_assert_ref(s);
2321 pa_assert_ctl_context();
2323 if (!PA_SINK_IS_LINKED(s->state))
2328 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2329 pa_sink_input_state_t st;
2331 st = pa_sink_input_get_state(i);
2333 /* We do not assert here. It is perfectly valid for a sink input to
2334 * be in the INIT state (i.e. created, marked done but not yet put)
2335 * and we should not care if it's unlinked as it won't contribute
2336 * towards our busy status.
2338 if (!PA_SINK_INPUT_IS_LINKED(st))
2341 if (st == PA_SINK_INPUT_CORKED)
2344 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2350 if (s->monitor_source)
2351 ret += pa_source_check_suspend(s->monitor_source);
2356 /* Called from the IO thread */
2357 static void sync_input_volumes_within_thread(pa_sink *s) {
2361 pa_sink_assert_ref(s);
2362 pa_sink_assert_io_context(s);
2364 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2365 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2368 i->thread_info.soft_volume = i->soft_volume;
2369 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
2373 /* Called from the IO thread. Only called for the root sink in volume sharing
2374 * cases, except for internal recursive calls. */
2375 static void set_shared_volume_within_thread(pa_sink *s) {
2376 pa_sink_input *i = NULL;
2379 pa_sink_assert_ref(s);
2381 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2383 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2384 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2385 set_shared_volume_within_thread(i->origin_sink);
2389 /* Called from IO thread, except when it is not */
2390 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2391 pa_sink *s = PA_SINK(o);
2392 pa_sink_assert_ref(s);
2394 switch ((pa_sink_message_t) code) {
2396 case PA_SINK_MESSAGE_ADD_INPUT: {
2397 pa_sink_input *i = PA_SINK_INPUT(userdata);
2399 /* If you change anything here, make sure to change the
2400 * sink input handling a few lines down at
2401 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2403 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2405 /* Since the caller sleeps in pa_sink_input_put(), we can
2406 * safely access data outside of thread_info even though
2409 if ((i->thread_info.sync_prev = i->sync_prev)) {
2410 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2411 pa_assert(i->sync_prev->sync_next == i);
2412 i->thread_info.sync_prev->thread_info.sync_next = i;
2415 if ((i->thread_info.sync_next = i->sync_next)) {
2416 pa_assert(i->sink == i->thread_info.sync_next->sink);
2417 pa_assert(i->sync_next->sync_prev == i);
2418 i->thread_info.sync_next->thread_info.sync_prev = i;
2421 pa_assert(!i->thread_info.attached);
2422 i->thread_info.attached = TRUE;
2427 pa_sink_input_set_state_within_thread(i, i->state);
2429 /* The requested latency of the sink input needs to be
2430 * fixed up and then configured on the sink */
2432 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2433 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2435 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2436 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2438 /* We don't rewind here automatically. This is left to the
2439 * sink input implementor because some sink inputs need a
2440 * slow start, i.e. need some time to buffer client
2441 * samples before beginning streaming. */
2443 /* FIXME: Actually rewinding should be requested before
2444 * updating the sink requested latency, because updating
2445 * the requested latency updates also max_rewind of the
2446 * sink. Now consider this: a sink has a 10 s buffer and
2447 * nobody has requested anything less. Then a new stream
2448 * appears while the sink buffer is full. The new stream
2449 * requests e.g. 100 ms latency. That request is forwarded
2450 * to the sink, so now max_rewind is 100 ms. When a rewind
2451 * is requested, the sink will only rewind 100 ms, and the
2452 * new stream will have to wait about 10 seconds before it
2453 * becomes audible. */
2455 /* In flat volume mode we need to update the volume as
2457 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2460 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2461 pa_sink_input *i = PA_SINK_INPUT(userdata);
2463 /* If you change anything here, make sure to change the
2464 * sink input handling a few lines down at
2465 * PA_SINK_MESSAGE_START_MOVE, too. */
2470 pa_sink_input_set_state_within_thread(i, i->state);
2472 pa_assert(i->thread_info.attached);
2473 i->thread_info.attached = FALSE;
2475 /* Since the caller sleeps in pa_sink_input_unlink(),
2476 * we can safely access data outside of thread_info even
2477 * though it is mutable */
2479 pa_assert(!i->sync_prev);
2480 pa_assert(!i->sync_next);
2482 if (i->thread_info.sync_prev) {
2483 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2484 i->thread_info.sync_prev = NULL;
2487 if (i->thread_info.sync_next) {
2488 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2489 i->thread_info.sync_next = NULL;
2492 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2493 pa_sink_input_unref(i);
2495 pa_sink_invalidate_requested_latency(s, TRUE);
2496 pa_sink_request_rewind(s, (size_t) -1);
2498 /* In flat volume mode we need to update the volume as
2500 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2503 case PA_SINK_MESSAGE_START_MOVE: {
2504 pa_sink_input *i = PA_SINK_INPUT(userdata);
2506 /* We don't support moving synchronized streams. */
2507 pa_assert(!i->sync_prev);
2508 pa_assert(!i->sync_next);
2509 pa_assert(!i->thread_info.sync_next);
2510 pa_assert(!i->thread_info.sync_prev);
2512 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2514 size_t sink_nbytes, total_nbytes;
2516 /* The old sink probably has some audio from this
2517 * stream in its buffer. We want to "take it back" as
2518 * much as possible and play it to the new sink. We
2519 * don't know at this point how much the old sink can
2520 * rewind. We have to pick something, and that
2521 * something is the full latency of the old sink here.
2522 * So we rewind the stream buffer by the sink latency
2523 * amount, which may be more than what we should
2524 * rewind. This can result in a chunk of audio being
2525 * played both to the old sink and the new sink.
2527 * FIXME: Fix this code so that we don't have to make
2528 * guesses about how much the sink will actually be
2529 * able to rewind. If someone comes up with a solution
2530 * for this, something to note is that the part of the
2531 * latency that the old sink couldn't rewind should
2532 * ideally be compensated after the stream has moved
2533 * to the new sink by adding silence. The new sink
2534 * most likely can't start playing the moved stream
2535 * immediately, and that gap should be removed from
2536 * the "compensation silence" (at least at the time of
2537 * writing this, the move finish code will actually
2538 * already take care of dropping the new sink's
2539 * unrewindable latency, so taking into account the
2540 * unrewindable latency of the old sink is the only
2543 * The render_memblockq contents are discarded,
2544 * because when the sink changes, the format of the
2545 * audio stored in the render_memblockq may change
2546 * too, making the stored audio invalid. FIXME:
2547 * However, the read and write indices are moved back
2548 * the same amount, so if they are not the same now,
2549 * they won't be the same after the rewind either. If
2550 * the write index of the render_memblockq is ahead of
2551 * the read index, then the render_memblockq will feed
2552 * the new sink some silence first, which it shouldn't
2553 * do. The write index should be flushed to be the
2554 * same as the read index. */
2556 /* Get the latency of the sink */
2557 usec = pa_sink_get_latency_within_thread(s);
2558 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2559 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2561 if (total_nbytes > 0) {
2562 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2563 i->thread_info.rewrite_flush = TRUE;
2564 pa_sink_input_process_rewind(i, sink_nbytes);
2571 pa_assert(i->thread_info.attached);
2572 i->thread_info.attached = FALSE;
2574 /* Let's remove the sink input ...*/
2575 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2576 pa_sink_input_unref(i);
2578 pa_sink_invalidate_requested_latency(s, TRUE);
2580 pa_log_debug("Requesting rewind due to started move");
2581 pa_sink_request_rewind(s, (size_t) -1);
2583 /* In flat volume mode we need to update the volume as
2585 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2588 case PA_SINK_MESSAGE_FINISH_MOVE: {
2589 pa_sink_input *i = PA_SINK_INPUT(userdata);
2591 /* We don't support moving synchronized streams. */
2592 pa_assert(!i->sync_prev);
2593 pa_assert(!i->sync_next);
2594 pa_assert(!i->thread_info.sync_next);
2595 pa_assert(!i->thread_info.sync_prev);
2597 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2599 pa_assert(!i->thread_info.attached);
2600 i->thread_info.attached = TRUE;
2605 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2609 /* In the ideal case the new sink would start playing
2610 * the stream immediately. That requires the sink to
2611 * be able to rewind all of its latency, which usually
2612 * isn't possible, so there will probably be some gap
2613 * before the moved stream becomes audible. We then
2614 * have two possibilities: 1) start playing the stream
2615 * from where it is now, or 2) drop the unrewindable
2616 * latency of the sink from the stream. With option 1
2617 * we won't lose any audio but the stream will have a
2618 * pause. With option 2 we may lose some audio but the
2619 * stream time will be somewhat in sync with the wall
2620 * clock. Lennart seems to have chosen option 2 (one
2621 * of the reasons might have been that option 1 is
2622 * actually much harder to implement), so we drop the
2623 * latency of the new sink from the moved stream and
2624 * hope that the sink will undo most of that in the
2627 /* Get the latency of the sink */
2628 usec = pa_sink_get_latency_within_thread(s);
2629 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2632 pa_sink_input_drop(i, nbytes);
2634 pa_log_debug("Requesting rewind due to finished move");
2635 pa_sink_request_rewind(s, nbytes);
2638 /* Updating the requested sink latency has to be done
2639 * after the sink rewind request, not before, because
2640 * otherwise the sink may limit the rewind amount
2643 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2644 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2646 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2647 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2649 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2652 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2653 pa_sink *root_sink = pa_sink_get_master(s);
2655 if (PA_LIKELY(root_sink))
2656 set_shared_volume_within_thread(root_sink);
2661 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2663 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2665 pa_sink_volume_change_push(s);
2667 /* Fall through ... */
2669 case PA_SINK_MESSAGE_SET_VOLUME:
2671 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2672 s->thread_info.soft_volume = s->soft_volume;
2673 pa_sink_request_rewind(s, (size_t) -1);
2676 /* Fall through ... */
2678 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2679 sync_input_volumes_within_thread(s);
2682 case PA_SINK_MESSAGE_GET_VOLUME:
2684 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2686 pa_sink_volume_change_flush(s);
2687 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2690 /* In case sink implementor reset SW volume. */
2691 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2692 s->thread_info.soft_volume = s->soft_volume;
2693 pa_sink_request_rewind(s, (size_t) -1);
2698 case PA_SINK_MESSAGE_SET_MUTE:
2700 if (s->thread_info.soft_muted != s->muted) {
2701 s->thread_info.soft_muted = s->muted;
2702 pa_sink_request_rewind(s, (size_t) -1);
2705 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2710 case PA_SINK_MESSAGE_GET_MUTE:
2712 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2717 case PA_SINK_MESSAGE_SET_STATE: {
2719 pa_bool_t suspend_change =
2720 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2721 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2723 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2725 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2726 s->thread_info.rewind_nbytes = 0;
2727 s->thread_info.rewind_requested = FALSE;
2730 if (suspend_change) {
2734 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2735 if (i->suspend_within_thread)
2736 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2742 case PA_SINK_MESSAGE_DETACH:
2744 /* Detach all streams */
2745 pa_sink_detach_within_thread(s);
2748 case PA_SINK_MESSAGE_ATTACH:
2750 /* Reattach all streams */
2751 pa_sink_attach_within_thread(s);
2754 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2756 pa_usec_t *usec = userdata;
2757 *usec = pa_sink_get_requested_latency_within_thread(s);
2759 /* Yes, that's right, the IO thread will see -1 when no
2760 * explicit requested latency is configured, the main
2761 * thread will see max_latency */
2762 if (*usec == (pa_usec_t) -1)
2763 *usec = s->thread_info.max_latency;
2768 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2769 pa_usec_t *r = userdata;
2771 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2776 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2777 pa_usec_t *r = userdata;
2779 r[0] = s->thread_info.min_latency;
2780 r[1] = s->thread_info.max_latency;
2785 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2787 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2790 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2792 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2795 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2797 *((size_t*) userdata) = s->thread_info.max_rewind;
2800 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2802 *((size_t*) userdata) = s->thread_info.max_request;
2805 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2807 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2810 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2812 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2815 case PA_SINK_MESSAGE_SET_PORT:
2817 pa_assert(userdata);
2819 struct sink_message_set_port *msg_data = userdata;
2820 msg_data->ret = s->set_port(s, msg_data->port);
2824 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2825 /* This message is sent from IO-thread and handled in main thread. */
2826 pa_assert_ctl_context();
2828 /* Make sure we're not messing with main thread when no longer linked */
2829 if (!PA_SINK_IS_LINKED(s->state))
2832 pa_sink_get_volume(s, TRUE);
2833 pa_sink_get_mute(s, TRUE);
2836 case PA_SINK_MESSAGE_SET_LATENCY_OFFSET:
2837 s->thread_info.latency_offset = offset;
2840 case PA_SINK_MESSAGE_GET_LATENCY:
2841 case PA_SINK_MESSAGE_MAX:
2848 /* Called from main thread */
2849 int pa_sink_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2854 pa_core_assert_ref(c);
2855 pa_assert_ctl_context();
2856 pa_assert(cause != 0);
2858 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2861 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2868 /* Called from main thread */
2869 void pa_sink_detach(pa_sink *s) {
2870 pa_sink_assert_ref(s);
2871 pa_assert_ctl_context();
2872 pa_assert(PA_SINK_IS_LINKED(s->state));
2874 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2877 /* Called from main thread */
2878 void pa_sink_attach(pa_sink *s) {
2879 pa_sink_assert_ref(s);
2880 pa_assert_ctl_context();
2881 pa_assert(PA_SINK_IS_LINKED(s->state));
2883 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2886 /* Called from IO thread */
2887 void pa_sink_detach_within_thread(pa_sink *s) {
2891 pa_sink_assert_ref(s);
2892 pa_sink_assert_io_context(s);
2893 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2895 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2899 if (s->monitor_source)
2900 pa_source_detach_within_thread(s->monitor_source);
2903 /* Called from IO thread */
2904 void pa_sink_attach_within_thread(pa_sink *s) {
2908 pa_sink_assert_ref(s);
2909 pa_sink_assert_io_context(s);
2910 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2912 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2916 if (s->monitor_source)
2917 pa_source_attach_within_thread(s->monitor_source);
2920 /* Called from IO thread */
2921 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2922 pa_sink_assert_ref(s);
2923 pa_sink_assert_io_context(s);
2924 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2926 if (s->thread_info.state == PA_SINK_SUSPENDED)
2929 if (nbytes == (size_t) -1)
2930 nbytes = s->thread_info.max_rewind;
2932 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2934 if (s->thread_info.rewind_requested &&
2935 nbytes <= s->thread_info.rewind_nbytes)
2938 s->thread_info.rewind_nbytes = nbytes;
2939 s->thread_info.rewind_requested = TRUE;
2941 if (s->request_rewind)
2942 s->request_rewind(s);
2945 /* Called from IO thread */
2946 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
2947 pa_usec_t result = (pa_usec_t) -1;
2950 pa_usec_t monitor_latency;
2952 pa_sink_assert_ref(s);
2953 pa_sink_assert_io_context(s);
2955 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
2956 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2958 if (s->thread_info.requested_latency_valid)
2959 return s->thread_info.requested_latency;
2961 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2962 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
2963 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
2964 result = i->thread_info.requested_sink_latency;
2966 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
2968 if (monitor_latency != (pa_usec_t) -1 &&
2969 (result == (pa_usec_t) -1 || result > monitor_latency))
2970 result = monitor_latency;
2972 if (result != (pa_usec_t) -1)
2973 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2975 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2976 /* Only cache if properly initialized */
2977 s->thread_info.requested_latency = result;
2978 s->thread_info.requested_latency_valid = TRUE;
2984 /* Called from main thread */
2985 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
2988 pa_sink_assert_ref(s);
2989 pa_assert_ctl_context();
2990 pa_assert(PA_SINK_IS_LINKED(s->state));
2992 if (s->state == PA_SINK_SUSPENDED)
2995 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3000 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3001 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3005 pa_sink_assert_ref(s);
3006 pa_sink_assert_io_context(s);
3008 if (max_rewind == s->thread_info.max_rewind)
3011 s->thread_info.max_rewind = max_rewind;
3013 if (PA_SINK_IS_LINKED(s->thread_info.state))
3014 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3015 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3017 if (s->monitor_source)
3018 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3021 /* Called from main thread */
3022 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3023 pa_sink_assert_ref(s);
3024 pa_assert_ctl_context();
3026 if (PA_SINK_IS_LINKED(s->state))
3027 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3029 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3032 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3033 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3036 pa_sink_assert_ref(s);
3037 pa_sink_assert_io_context(s);
3039 if (max_request == s->thread_info.max_request)
3042 s->thread_info.max_request = max_request;
3044 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3047 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3048 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3052 /* Called from main thread */
3053 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3054 pa_sink_assert_ref(s);
3055 pa_assert_ctl_context();
3057 if (PA_SINK_IS_LINKED(s->state))
3058 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3060 pa_sink_set_max_request_within_thread(s, max_request);
3063 /* Called from IO thread */
3064 void pa_sink_invalidate_requested_latency(pa_sink *s, pa_bool_t dynamic) {
3068 pa_sink_assert_ref(s);
3069 pa_sink_assert_io_context(s);
3071 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3072 s->thread_info.requested_latency_valid = FALSE;
3076 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3078 if (s->update_requested_latency)
3079 s->update_requested_latency(s);
3081 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3082 if (i->update_sink_requested_latency)
3083 i->update_sink_requested_latency(i);
3087 /* Called from main thread */
3088 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3089 pa_sink_assert_ref(s);
3090 pa_assert_ctl_context();
3092 /* min_latency == 0: no limit
3093 * min_latency anything else: specified limit
3095 * Similar for max_latency */
3097 if (min_latency < ABSOLUTE_MIN_LATENCY)
3098 min_latency = ABSOLUTE_MIN_LATENCY;
3100 if (max_latency <= 0 ||
3101 max_latency > ABSOLUTE_MAX_LATENCY)
3102 max_latency = ABSOLUTE_MAX_LATENCY;
3104 pa_assert(min_latency <= max_latency);
3106 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3107 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3108 max_latency == ABSOLUTE_MAX_LATENCY) ||
3109 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3111 if (PA_SINK_IS_LINKED(s->state)) {
3117 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3119 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3122 /* Called from main thread */
3123 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3124 pa_sink_assert_ref(s);
3125 pa_assert_ctl_context();
3126 pa_assert(min_latency);
3127 pa_assert(max_latency);
3129 if (PA_SINK_IS_LINKED(s->state)) {
3130 pa_usec_t r[2] = { 0, 0 };
3132 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3134 *min_latency = r[0];
3135 *max_latency = r[1];
3137 *min_latency = s->thread_info.min_latency;
3138 *max_latency = s->thread_info.max_latency;
3142 /* Called from IO thread */
3143 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3144 pa_sink_assert_ref(s);
3145 pa_sink_assert_io_context(s);
3147 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3148 pa_assert(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 (s->thread_info.min_latency == min_latency &&
3157 s->thread_info.max_latency == max_latency)
3160 s->thread_info.min_latency = min_latency;
3161 s->thread_info.max_latency = max_latency;
3163 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3167 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3168 if (i->update_sink_latency_range)
3169 i->update_sink_latency_range(i);
3172 pa_sink_invalidate_requested_latency(s, FALSE);
3174 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3177 /* Called from main thread */
3178 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3179 pa_sink_assert_ref(s);
3180 pa_assert_ctl_context();
3182 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3183 pa_assert(latency == 0);
3187 if (latency < ABSOLUTE_MIN_LATENCY)
3188 latency = ABSOLUTE_MIN_LATENCY;
3190 if (latency > ABSOLUTE_MAX_LATENCY)
3191 latency = ABSOLUTE_MAX_LATENCY;
3193 if (PA_SINK_IS_LINKED(s->state))
3194 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3196 s->thread_info.fixed_latency = latency;
3198 pa_source_set_fixed_latency(s->monitor_source, latency);
3201 /* Called from main thread */
3202 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3205 pa_sink_assert_ref(s);
3206 pa_assert_ctl_context();
3208 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3211 if (PA_SINK_IS_LINKED(s->state))
3212 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3214 latency = s->thread_info.fixed_latency;
3219 /* Called from IO thread */
3220 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3221 pa_sink_assert_ref(s);
3222 pa_sink_assert_io_context(s);
3224 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3225 pa_assert(latency == 0);
3229 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3230 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3232 if (s->thread_info.fixed_latency == latency)
3235 s->thread_info.fixed_latency = latency;
3237 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3241 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3242 if (i->update_sink_fixed_latency)
3243 i->update_sink_fixed_latency(i);
3246 pa_sink_invalidate_requested_latency(s, FALSE);
3248 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3251 /* Called from main context */
3252 void pa_sink_set_latency_offset(pa_sink *s, int64_t offset) {
3253 pa_sink_assert_ref(s);
3255 s->latency_offset = offset;
3257 if (PA_SINK_IS_LINKED(s->state))
3258 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3260 s->thread_info.latency_offset = offset;
3263 /* Called from main context */
3264 size_t pa_sink_get_max_rewind(pa_sink *s) {
3266 pa_assert_ctl_context();
3267 pa_sink_assert_ref(s);
3269 if (!PA_SINK_IS_LINKED(s->state))
3270 return s->thread_info.max_rewind;
3272 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3277 /* Called from main context */
3278 size_t pa_sink_get_max_request(pa_sink *s) {
3280 pa_sink_assert_ref(s);
3281 pa_assert_ctl_context();
3283 if (!PA_SINK_IS_LINKED(s->state))
3284 return s->thread_info.max_request;
3286 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3291 /* Called from main context */
3292 int pa_sink_set_port(pa_sink *s, const char *name, pa_bool_t save) {
3293 pa_device_port *port;
3296 pa_sink_assert_ref(s);
3297 pa_assert_ctl_context();
3300 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3301 return -PA_ERR_NOTIMPLEMENTED;
3305 return -PA_ERR_NOENTITY;
3307 if (!(port = pa_hashmap_get(s->ports, name)))
3308 return -PA_ERR_NOENTITY;
3310 if (s->active_port == port) {
3311 s->save_port = s->save_port || save;
3315 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3316 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3317 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3321 ret = s->set_port(s, port);
3324 return -PA_ERR_NOENTITY;
3326 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3328 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3330 s->active_port = port;
3331 s->save_port = save;
3333 pa_sink_set_latency_offset(s, s->active_port->latency_offset);
3335 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3340 pa_bool_t pa_device_init_icon(pa_proplist *p, pa_bool_t is_sink) {
3341 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3345 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3348 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3350 if (pa_streq(ff, "microphone"))
3351 t = "audio-input-microphone";
3352 else if (pa_streq(ff, "webcam"))
3354 else if (pa_streq(ff, "computer"))
3356 else if (pa_streq(ff, "handset"))
3358 else if (pa_streq(ff, "portable"))
3359 t = "multimedia-player";
3360 else if (pa_streq(ff, "tv"))
3361 t = "video-display";
3364 * The following icons are not part of the icon naming spec,
3365 * because Rodney Dawes sucks as the maintainer of that spec.
3367 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3369 else if (pa_streq(ff, "headset"))
3370 t = "audio-headset";
3371 else if (pa_streq(ff, "headphone"))
3372 t = "audio-headphones";
3373 else if (pa_streq(ff, "speaker"))
3374 t = "audio-speakers";
3375 else if (pa_streq(ff, "hands-free"))
3376 t = "audio-handsfree";
3380 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3381 if (pa_streq(c, "modem"))
3388 t = "audio-input-microphone";
3391 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3392 if (strstr(profile, "analog"))
3394 else if (strstr(profile, "iec958"))
3396 else if (strstr(profile, "hdmi"))
3400 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3402 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3407 pa_bool_t pa_device_init_description(pa_proplist *p) {
3408 const char *s, *d = NULL, *k;
3411 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3414 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3415 if (pa_streq(s, "internal"))
3416 d = _("Built-in Audio");
3419 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3420 if (pa_streq(s, "modem"))
3424 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3429 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3432 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3434 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3439 pa_bool_t pa_device_init_intended_roles(pa_proplist *p) {
3443 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3446 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3447 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3448 || pa_streq(s, "headset")) {
3449 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3456 unsigned pa_device_init_priority(pa_proplist *p) {
3458 unsigned priority = 0;
3462 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3464 if (pa_streq(s, "sound"))
3466 else if (!pa_streq(s, "modem"))
3470 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3472 if (pa_streq(s, "internal"))
3474 else if (pa_streq(s, "speaker"))
3476 else if (pa_streq(s, "headphone"))
3480 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3482 if (pa_streq(s, "pci"))
3484 else if (pa_streq(s, "usb"))
3486 else if (pa_streq(s, "bluetooth"))
3490 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3492 if (pa_startswith(s, "analog-"))
3494 else if (pa_startswith(s, "iec958-"))
3501 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3503 /* Called from the IO thread. */
3504 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3505 pa_sink_volume_change *c;
3506 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3507 c = pa_xnew(pa_sink_volume_change, 1);
3509 PA_LLIST_INIT(pa_sink_volume_change, c);
3511 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3515 /* Called from the IO thread. */
3516 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3518 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3522 /* Called from the IO thread. */
3523 void pa_sink_volume_change_push(pa_sink *s) {
3524 pa_sink_volume_change *c = NULL;
3525 pa_sink_volume_change *nc = NULL;
3526 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3528 const char *direction = NULL;
3531 nc = pa_sink_volume_change_new(s);
3533 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3534 * Adding one more volume for HW would get us rid of this, but I am trying
3535 * to survive with the ones we already have. */
3536 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3538 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3539 pa_log_debug("Volume not changing");
3540 pa_sink_volume_change_free(nc);
3544 nc->at = pa_sink_get_latency_within_thread(s);
3545 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3547 if (s->thread_info.volume_changes_tail) {
3548 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3549 /* If volume is going up let's do it a bit late. If it is going
3550 * down let's do it a bit early. */
3551 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3552 if (nc->at + safety_margin > c->at) {
3553 nc->at += safety_margin;
3558 else if (nc->at - safety_margin > c->at) {
3559 nc->at -= safety_margin;
3567 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3568 nc->at += safety_margin;
3571 nc->at -= safety_margin;
3574 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3577 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3580 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3582 /* We can ignore volume events that came earlier but should happen later than this. */
3583 PA_LLIST_FOREACH(c, nc->next) {
3584 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3585 pa_sink_volume_change_free(c);
3588 s->thread_info.volume_changes_tail = nc;
3591 /* Called from the IO thread. */
3592 static void pa_sink_volume_change_flush(pa_sink *s) {
3593 pa_sink_volume_change *c = s->thread_info.volume_changes;
3595 s->thread_info.volume_changes = NULL;
3596 s->thread_info.volume_changes_tail = NULL;
3598 pa_sink_volume_change *next = c->next;
3599 pa_sink_volume_change_free(c);
3604 /* Called from the IO thread. */
3605 pa_bool_t pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3607 pa_bool_t ret = FALSE;
3611 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3617 pa_assert(s->write_volume);
3619 now = pa_rtclock_now();
3621 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3622 pa_sink_volume_change *c = s->thread_info.volume_changes;
3623 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3624 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3625 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3627 s->thread_info.current_hw_volume = c->hw_volume;
3628 pa_sink_volume_change_free(c);
3634 if (s->thread_info.volume_changes) {
3636 *usec_to_next = s->thread_info.volume_changes->at - now;
3637 if (pa_log_ratelimit(PA_LOG_DEBUG))
3638 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3643 s->thread_info.volume_changes_tail = NULL;
3648 /* Called from the IO thread. */
3649 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3650 /* All the queued volume events later than current latency are shifted to happen earlier. */
3651 pa_sink_volume_change *c;
3652 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3653 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3654 pa_usec_t limit = pa_sink_get_latency_within_thread(s);
3656 pa_log_debug("latency = %lld", (long long) limit);
3657 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3659 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3660 pa_usec_t modified_limit = limit;
3661 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3662 modified_limit -= s->thread_info.volume_change_safety_margin;
3664 modified_limit += s->thread_info.volume_change_safety_margin;
3665 if (c->at > modified_limit) {
3667 if (c->at < modified_limit)
3668 c->at = modified_limit;
3670 prev_vol = pa_cvolume_avg(&c->hw_volume);
3672 pa_sink_volume_change_apply(s, NULL);
3675 /* Called from the main thread */
3676 /* Gets the list of formats supported by the sink. The members and idxset must
3677 * be freed by the caller. */
3678 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3683 if (s->get_formats) {
3684 /* Sink supports format query, all is good */
3685 ret = s->get_formats(s);
3687 /* Sink doesn't support format query, so assume it does PCM */
3688 pa_format_info *f = pa_format_info_new();
3689 f->encoding = PA_ENCODING_PCM;
3691 ret = pa_idxset_new(NULL, NULL);
3692 pa_idxset_put(ret, f, NULL);
3698 /* Called from the main thread */
3699 /* Allows an external source to set what formats a sink supports if the sink
3700 * permits this. The function makes a copy of the formats on success. */
3701 pa_bool_t pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3706 /* Sink supports setting formats -- let's give it a shot */
3707 return s->set_formats(s, formats);
3709 /* Sink doesn't support setting this -- bail out */
3713 /* Called from the main thread */
3714 /* Checks if the sink can accept this format */
3715 pa_bool_t pa_sink_check_format(pa_sink *s, pa_format_info *f)
3717 pa_idxset *formats = NULL;
3718 pa_bool_t ret = FALSE;
3723 formats = pa_sink_get_formats(s);
3726 pa_format_info *finfo_device;
3729 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3730 if (pa_format_info_is_compatible(finfo_device, f)) {
3736 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
3742 /* Called from the main thread */
3743 /* Calculates the intersection between formats supported by the sink and
3744 * in_formats, and returns these, in the order of the sink's formats. */
3745 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3746 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3747 pa_format_info *f_sink, *f_in;
3752 if (!in_formats || pa_idxset_isempty(in_formats))
3755 sink_formats = pa_sink_get_formats(s);
3757 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3758 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3759 if (pa_format_info_is_compatible(f_sink, f_in))
3760 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3766 pa_idxset_free(sink_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);