2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/introspect.h>
32 #include <pulse/format.h>
33 #include <pulse/utf8.h>
34 #include <pulse/xmalloc.h>
35 #include <pulse/timeval.h>
36 #include <pulse/util.h>
37 #include <pulse/rtclock.h>
38 #include <pulse/internal.h>
40 #include <pulsecore/i18n.h>
41 #include <pulsecore/sink-input.h>
42 #include <pulsecore/namereg.h>
43 #include <pulsecore/core-util.h>
44 #include <pulsecore/sample-util.h>
45 #include <pulsecore/mix.h>
46 #include <pulsecore/core-subscribe.h>
47 #include <pulsecore/log.h>
48 #include <pulsecore/macro.h>
49 #include <pulsecore/play-memblockq.h>
50 #include <pulsecore/flist.h>
54 #define MAX_MIX_CHANNELS 32
55 #define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
56 #define ABSOLUTE_MIN_LATENCY (500)
57 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
58 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
60 PA_DEFINE_PUBLIC_CLASS(pa_sink, pa_msgobject);
62 struct pa_sink_volume_change {
66 PA_LLIST_FIELDS(pa_sink_volume_change);
69 struct sink_message_set_port {
74 static void sink_free(pa_object *s);
76 static void pa_sink_volume_change_push(pa_sink *s);
77 static void pa_sink_volume_change_flush(pa_sink *s);
78 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes);
80 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
84 data->proplist = pa_proplist_new();
85 data->ports = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_device_port_unref);
90 void pa_sink_new_data_set_name(pa_sink_new_data *data, const char *name) {
94 data->name = pa_xstrdup(name);
97 void pa_sink_new_data_set_sample_spec(pa_sink_new_data *data, const pa_sample_spec *spec) {
100 if ((data->sample_spec_is_set = !!spec))
101 data->sample_spec = *spec;
104 void pa_sink_new_data_set_channel_map(pa_sink_new_data *data, const pa_channel_map *map) {
107 if ((data->channel_map_is_set = !!map))
108 data->channel_map = *map;
111 void pa_sink_new_data_set_alternate_sample_rate(pa_sink_new_data *data, const uint32_t alternate_sample_rate) {
114 data->alternate_sample_rate_is_set = true;
115 data->alternate_sample_rate = alternate_sample_rate;
118 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
121 if ((data->volume_is_set = !!volume))
122 data->volume = *volume;
125 void pa_sink_new_data_set_muted(pa_sink_new_data *data, bool mute) {
128 data->muted_is_set = true;
129 data->muted = !!mute;
132 void pa_sink_new_data_set_port(pa_sink_new_data *data, const char *port) {
135 pa_xfree(data->active_port);
136 data->active_port = pa_xstrdup(port);
139 void pa_sink_new_data_done(pa_sink_new_data *data) {
142 pa_proplist_free(data->proplist);
145 pa_hashmap_free(data->ports);
147 pa_xfree(data->name);
148 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 = data->suspend_cause;
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 (p->available == PA_AVAILABLE_NO)
311 if (!s->active_port || p->priority > s->active_port->priority)
314 if (!s->active_port) {
315 PA_HASHMAP_FOREACH(p, s->ports, state)
316 if (!s->active_port || p->priority > s->active_port->priority)
322 s->latency_offset = s->active_port->latency_offset;
324 s->latency_offset = 0;
326 s->save_volume = data->save_volume;
327 s->save_muted = data->save_muted;
329 pa_silence_memchunk_get(
330 &core->silence_cache,
336 pa_cvolume_ramp_int_init(&s->ramp, PA_VOLUME_NORM, data->sample_spec.channels);
338 s->thread_info.rtpoll = NULL;
339 s->thread_info.inputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
340 (pa_free_cb_t) pa_sink_input_unref);
341 s->thread_info.soft_volume = s->soft_volume;
342 s->thread_info.soft_muted = s->muted;
343 s->thread_info.state = s->state;
344 s->thread_info.rewind_nbytes = 0;
345 s->thread_info.rewind_requested = false;
346 s->thread_info.max_rewind = 0;
347 s->thread_info.max_request = 0;
348 s->thread_info.requested_latency_valid = false;
349 s->thread_info.requested_latency = 0;
350 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
351 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
352 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
354 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
355 s->thread_info.volume_changes_tail = NULL;
356 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
357 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
358 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
359 s->thread_info.latency_offset = s->latency_offset;
361 s->thread_info.ramp = s->ramp;
363 /* FIXME: This should probably be moved to pa_sink_put() */
364 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
367 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
369 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
370 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
373 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
374 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
378 pa_source_new_data_init(&source_data);
379 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
380 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
381 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
382 source_data.name = pa_sprintf_malloc("%s.monitor", name);
383 source_data.driver = data->driver;
384 source_data.module = data->module;
385 source_data.card = data->card;
387 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
388 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
389 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
391 s->monitor_source = pa_source_new(core, &source_data,
392 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
393 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
395 pa_source_new_data_done(&source_data);
397 if (!s->monitor_source) {
403 s->monitor_source->monitor_of = s;
405 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
406 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
407 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
412 /* Called from main context */
413 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
416 pa_sink_state_t original_state;
419 pa_assert_ctl_context();
421 if (s->state == state)
424 original_state = s->state;
427 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
428 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
431 if ((ret = s->set_state(s, state)) < 0)
435 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
438 s->set_state(s, original_state);
445 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
446 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
447 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
450 if (suspend_change) {
454 /* We're suspending or resuming, tell everyone about it */
456 PA_IDXSET_FOREACH(i, s->inputs, idx)
457 if (s->state == PA_SINK_SUSPENDED &&
458 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
459 pa_sink_input_kill(i);
461 i->suspend(i, state == PA_SINK_SUSPENDED);
463 if (s->monitor_source)
464 pa_source_sync_suspend(s->monitor_source);
470 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
476 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
477 pa_sink_flags_t flags;
480 pa_assert(!s->write_volume || cb);
484 /* Save the current flags so we can tell if they've changed */
488 /* The sink implementor is responsible for setting decibel volume support */
489 s->flags |= PA_SINK_HW_VOLUME_CTRL;
491 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
492 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
493 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
496 /* If the flags have changed after init, let any clients know via a change event */
497 if (s->state != PA_SINK_INIT && flags != s->flags)
498 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
501 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
502 pa_sink_flags_t flags;
505 pa_assert(!cb || s->set_volume);
507 s->write_volume = cb;
509 /* Save the current flags so we can tell if they've changed */
513 s->flags |= PA_SINK_DEFERRED_VOLUME;
515 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
517 /* If the flags have changed after init, let any clients know via a change event */
518 if (s->state != PA_SINK_INIT && flags != s->flags)
519 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
522 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
528 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
529 pa_sink_flags_t flags;
535 /* Save the current flags so we can tell if they've changed */
539 s->flags |= PA_SINK_HW_MUTE_CTRL;
541 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
543 /* If the flags have changed after init, let any clients know via a change event */
544 if (s->state != PA_SINK_INIT && flags != s->flags)
545 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
548 static void enable_flat_volume(pa_sink *s, bool enable) {
549 pa_sink_flags_t flags;
553 /* Always follow the overall user preference here */
554 enable = enable && s->core->flat_volumes;
556 /* Save the current flags so we can tell if they've changed */
560 s->flags |= PA_SINK_FLAT_VOLUME;
562 s->flags &= ~PA_SINK_FLAT_VOLUME;
564 /* If the flags have changed after init, let any clients know via a change event */
565 if (s->state != PA_SINK_INIT && flags != s->flags)
566 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
569 void pa_sink_enable_decibel_volume(pa_sink *s, bool enable) {
570 pa_sink_flags_t flags;
574 /* Save the current flags so we can tell if they've changed */
578 s->flags |= PA_SINK_DECIBEL_VOLUME;
579 enable_flat_volume(s, true);
581 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
582 enable_flat_volume(s, false);
585 /* If the flags have changed after init, let any clients know via a change event */
586 if (s->state != PA_SINK_INIT && flags != s->flags)
587 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
590 /* Called from main context */
591 void pa_sink_put(pa_sink* s) {
592 pa_sink_assert_ref(s);
593 pa_assert_ctl_context();
595 pa_assert(s->state == PA_SINK_INIT);
596 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || s->input_to_master);
598 /* The following fields must be initialized properly when calling _put() */
599 pa_assert(s->asyncmsgq);
600 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
602 /* Generally, flags should be initialized via pa_sink_new(). As a
603 * special exception we allow some volume related flags to be set
604 * between _new() and _put() by the callback setter functions above.
606 * Thus we implement a couple safeguards here which ensure the above
607 * setters were used (or at least the implementor made manual changes
608 * in a compatible way).
610 * Note: All of these flags set here can change over the life time
612 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
613 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
614 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
616 /* XXX: Currently decibel volume is disabled for all sinks that use volume
617 * sharing. When the master sink supports decibel volume, it would be good
618 * to have the flag also in the filter sink, but currently we don't do that
619 * so that the flags of the filter sink never change when it's moved from
620 * a master sink to another. One solution for this problem would be to
621 * remove user-visible volume altogether from filter sinks when volume
622 * sharing is used, but the current approach was easier to implement... */
623 /* We always support decibel volumes in software, otherwise we leave it to
624 * the sink implementor to set this flag as needed.
626 * Note: This flag can also change over the life time of the sink. */
627 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
628 pa_sink_enable_decibel_volume(s, true);
630 /* If the sink implementor support DB volumes by itself, we should always
631 * try and enable flat volumes too */
632 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
633 enable_flat_volume(s, true);
635 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
636 pa_sink *root_sink = pa_sink_get_master(s);
638 pa_assert(root_sink);
640 s->reference_volume = root_sink->reference_volume;
641 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
643 s->real_volume = root_sink->real_volume;
644 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
646 /* We assume that if the sink implementor changed the default
647 * volume he did so in real_volume, because that is the usual
648 * place where he is supposed to place his changes. */
649 s->reference_volume = s->real_volume;
651 s->thread_info.soft_volume = s->soft_volume;
652 s->thread_info.soft_muted = s->muted;
653 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
655 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
656 || (s->base_volume == PA_VOLUME_NORM
657 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
658 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
659 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
660 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
661 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
663 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
664 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
665 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
667 if (s->suspend_cause)
668 pa_assert_se(sink_set_state(s, PA_SINK_SUSPENDED) == 0);
670 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
672 pa_source_put(s->monitor_source);
674 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
675 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
678 /* Called from main context */
679 void pa_sink_unlink(pa_sink* s) {
681 pa_sink_input *i, *j = NULL;
684 pa_assert_ctl_context();
686 /* Please note that pa_sink_unlink() does more than simply
687 * reversing pa_sink_put(). It also undoes the registrations
688 * already done in pa_sink_new()! */
690 /* All operations here shall be idempotent, i.e. pa_sink_unlink()
691 * may be called multiple times on the same sink without bad
694 linked = PA_SINK_IS_LINKED(s->state);
697 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
699 if (s->state != PA_SINK_UNLINKED)
700 pa_namereg_unregister(s->core, s->name);
701 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
704 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
706 while ((i = pa_idxset_first(s->inputs, NULL))) {
708 pa_sink_input_kill(i);
713 sink_set_state(s, PA_SINK_UNLINKED);
715 s->state = PA_SINK_UNLINKED;
719 if (s->monitor_source)
720 pa_source_unlink(s->monitor_source);
723 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
724 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
728 /* Called from main context */
729 static void sink_free(pa_object *o) {
730 pa_sink *s = PA_SINK(o);
733 pa_assert_ctl_context();
734 pa_assert(pa_sink_refcnt(s) == 0);
736 if (PA_SINK_IS_LINKED(s->state))
739 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
741 if (s->monitor_source) {
742 pa_source_unref(s->monitor_source);
743 s->monitor_source = NULL;
746 pa_idxset_free(s->inputs, NULL);
747 pa_hashmap_free(s->thread_info.inputs);
749 if (s->silence.memblock)
750 pa_memblock_unref(s->silence.memblock);
756 pa_proplist_free(s->proplist);
759 pa_hashmap_free(s->ports);
764 /* Called from main context, and not while the IO thread is active, please */
765 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
766 pa_sink_assert_ref(s);
767 pa_assert_ctl_context();
771 if (s->monitor_source)
772 pa_source_set_asyncmsgq(s->monitor_source, q);
775 /* Called from main context, and not while the IO thread is active, please */
776 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
777 pa_sink_flags_t old_flags;
778 pa_sink_input *input;
781 pa_sink_assert_ref(s);
782 pa_assert_ctl_context();
784 /* For now, allow only a minimal set of flags to be changed. */
785 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
787 old_flags = s->flags;
788 s->flags = (s->flags & ~mask) | (value & mask);
790 if (s->flags == old_flags)
793 if ((s->flags & PA_SINK_LATENCY) != (old_flags & PA_SINK_LATENCY))
794 pa_log_debug("Sink %s: LATENCY flag %s.", s->name, (s->flags & PA_SINK_LATENCY) ? "enabled" : "disabled");
796 if ((s->flags & PA_SINK_DYNAMIC_LATENCY) != (old_flags & PA_SINK_DYNAMIC_LATENCY))
797 pa_log_debug("Sink %s: DYNAMIC_LATENCY flag %s.",
798 s->name, (s->flags & PA_SINK_DYNAMIC_LATENCY) ? "enabled" : "disabled");
800 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
801 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_FLAGS_CHANGED], s);
803 if (s->monitor_source)
804 pa_source_update_flags(s->monitor_source,
805 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
806 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
807 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
808 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
810 PA_IDXSET_FOREACH(input, s->inputs, idx) {
811 if (input->origin_sink)
812 pa_sink_update_flags(input->origin_sink, mask, value);
816 /* Called from IO context, or before _put() from main context */
817 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
818 pa_sink_assert_ref(s);
819 pa_sink_assert_io_context(s);
821 s->thread_info.rtpoll = p;
823 if (s->monitor_source)
824 pa_source_set_rtpoll(s->monitor_source, p);
827 /* Called from main context */
828 int pa_sink_update_status(pa_sink*s) {
829 pa_sink_assert_ref(s);
830 pa_assert_ctl_context();
831 pa_assert(PA_SINK_IS_LINKED(s->state));
833 if (s->state == PA_SINK_SUSPENDED)
836 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
839 /* Called from any context - must be threadsafe */
840 void pa_sink_set_mixer_dirty(pa_sink *s, bool is_dirty) {
841 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
844 /* Called from main context */
845 int pa_sink_suspend(pa_sink *s, bool suspend, pa_suspend_cause_t cause) {
846 pa_sink_assert_ref(s);
847 pa_assert_ctl_context();
848 pa_assert(PA_SINK_IS_LINKED(s->state));
849 pa_assert(cause != 0);
852 s->suspend_cause |= cause;
853 s->monitor_source->suspend_cause |= cause;
855 s->suspend_cause &= ~cause;
856 s->monitor_source->suspend_cause &= ~cause;
859 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
860 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
861 it'll be handled just fine. */
862 pa_sink_set_mixer_dirty(s, false);
863 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
864 if (s->active_port && s->set_port) {
865 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
866 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
867 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
870 s->set_port(s, s->active_port);
880 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
883 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
885 if (s->suspend_cause)
886 return sink_set_state(s, PA_SINK_SUSPENDED);
888 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
891 /* Called from main context */
892 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
893 pa_sink_input *i, *n;
896 pa_sink_assert_ref(s);
897 pa_assert_ctl_context();
898 pa_assert(PA_SINK_IS_LINKED(s->state));
903 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
904 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
906 pa_sink_input_ref(i);
908 if (pa_sink_input_start_move(i) >= 0)
911 pa_sink_input_unref(i);
917 /* Called from main context */
918 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, bool save) {
921 pa_sink_assert_ref(s);
922 pa_assert_ctl_context();
923 pa_assert(PA_SINK_IS_LINKED(s->state));
926 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
927 if (pa_sink_input_finish_move(i, s, save) < 0)
928 pa_sink_input_fail_move(i);
930 pa_sink_input_unref(i);
933 pa_queue_free(q, NULL);
936 /* Called from main context */
937 void pa_sink_move_all_fail(pa_queue *q) {
940 pa_assert_ctl_context();
943 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
944 pa_sink_input_fail_move(i);
945 pa_sink_input_unref(i);
948 pa_queue_free(q, NULL);
951 /* Called from IO thread context */
952 size_t pa_sink_process_input_underruns(pa_sink *s, size_t left_to_play) {
957 pa_sink_assert_ref(s);
958 pa_sink_assert_io_context(s);
960 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
961 size_t uf = i->thread_info.underrun_for_sink;
964 if (uf >= left_to_play) {
965 if (pa_sink_input_process_underrun(i))
968 else if (uf > result)
973 pa_log_debug("Found underrun %ld bytes ago (%ld bytes ahead in playback buffer)", (long) result, (long) left_to_play - result);
974 return left_to_play - result;
977 /* Called from IO thread context */
978 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
982 pa_sink_assert_ref(s);
983 pa_sink_assert_io_context(s);
984 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
986 /* If nobody requested this and this is actually no real rewind
987 * then we can short cut this. Please note that this means that
988 * not all rewind requests triggered upstream will always be
989 * translated in actual requests! */
990 if (!s->thread_info.rewind_requested && nbytes <= 0)
993 s->thread_info.rewind_nbytes = 0;
994 s->thread_info.rewind_requested = false;
997 pa_log_debug("Processing rewind...");
998 if (s->flags & PA_SINK_DEFERRED_VOLUME)
999 pa_sink_volume_change_rewind(s, nbytes);
1002 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1003 pa_sink_input_assert_ref(i);
1004 pa_sink_input_process_rewind(i, nbytes);
1008 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1009 pa_source_process_rewind(s->monitor_source, nbytes);
1013 /* Called from IO thread context */
1014 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
1018 size_t mixlength = *length;
1020 pa_sink_assert_ref(s);
1021 pa_sink_assert_io_context(s);
1024 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
1025 pa_sink_input_assert_ref(i);
1027 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
1029 if (mixlength == 0 || info->chunk.length < mixlength)
1030 mixlength = info->chunk.length;
1032 if (pa_memblock_is_silence(info->chunk.memblock)) {
1033 pa_memblock_unref(info->chunk.memblock);
1037 info->userdata = pa_sink_input_ref(i);
1039 pa_assert(info->chunk.memblock);
1040 pa_assert(info->chunk.length > 0);
1048 *length = mixlength;
1053 /* Called from IO thread context */
1054 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1058 unsigned n_unreffed = 0;
1060 pa_sink_assert_ref(s);
1061 pa_sink_assert_io_context(s);
1063 pa_assert(result->memblock);
1064 pa_assert(result->length > 0);
1066 /* We optimize for the case where the order of the inputs has not changed */
1068 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1070 pa_mix_info* m = NULL;
1072 pa_sink_input_assert_ref(i);
1074 /* Let's try to find the matching entry info the pa_mix_info array */
1075 for (j = 0; j < n; j ++) {
1077 if (info[p].userdata == i) {
1087 /* Drop read data */
1088 pa_sink_input_drop(i, result->length);
1090 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1092 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1093 void *ostate = NULL;
1094 pa_source_output *o;
1097 if (m && m->chunk.memblock) {
1099 pa_memblock_ref(c.memblock);
1100 pa_assert(result->length <= c.length);
1101 c.length = result->length;
1103 pa_memchunk_make_writable(&c, 0);
1104 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1107 pa_memblock_ref(c.memblock);
1108 pa_assert(result->length <= c.length);
1109 c.length = result->length;
1112 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1113 pa_source_output_assert_ref(o);
1114 pa_assert(o->direct_on_input == i);
1115 pa_source_post_direct(s->monitor_source, o, &c);
1118 pa_memblock_unref(c.memblock);
1123 if (m->chunk.memblock) {
1124 pa_memblock_unref(m->chunk.memblock);
1125 pa_memchunk_reset(&m->chunk);
1128 pa_sink_input_unref(m->userdata);
1135 /* Now drop references to entries that are included in the
1136 * pa_mix_info array but don't exist anymore */
1138 if (n_unreffed < n) {
1139 for (; n > 0; info++, n--) {
1141 pa_sink_input_unref(info->userdata);
1142 if (info->chunk.memblock)
1143 pa_memblock_unref(info->chunk.memblock);
1147 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1148 pa_source_post(s->monitor_source, result);
1151 /* Called from IO thread context */
1152 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1153 pa_mix_info info[MAX_MIX_CHANNELS];
1155 size_t block_size_max;
1157 pa_sink_assert_ref(s);
1158 pa_sink_assert_io_context(s);
1159 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1160 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1163 pa_assert(!s->thread_info.rewind_requested);
1164 pa_assert(s->thread_info.rewind_nbytes == 0);
1166 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1167 result->memblock = pa_memblock_ref(s->silence.memblock);
1168 result->index = s->silence.index;
1169 result->length = PA_MIN(s->silence.length, length);
1176 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1178 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1179 if (length > block_size_max)
1180 length = pa_frame_align(block_size_max, &s->sample_spec);
1182 pa_assert(length > 0);
1184 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1188 *result = s->silence;
1189 pa_memblock_ref(result->memblock);
1191 if (result->length > length)
1192 result->length = length;
1194 } else if (n == 1) {
1198 *result = info[0].chunk;
1199 pa_memblock_ref(result->memblock);
1201 if (result->length > length)
1202 result->length = length;
1204 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1206 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1207 pa_memblock_unref(result->memblock);
1208 pa_silence_memchunk_get(&s->core->silence_cache,
1213 } else if (!pa_cvolume_is_norm(&volume) || pa_cvolume_ramp_target_active(&s->thread_info.ramp) || pa_cvolume_ramp_active(&s->thread_info.ramp)) {
1214 pa_memchunk_make_writable(result, 0);
1215 if (pa_cvolume_ramp_active(&s->thread_info.ramp)) {
1216 if (!pa_cvolume_is_norm(&volume))
1217 pa_volume_memchunk(result, &s->sample_spec, &volume);
1218 pa_volume_ramp_memchunk(result, &s->sample_spec, &(s->thread_info.ramp));
1221 if (pa_cvolume_ramp_target_active(&s->thread_info.ramp)) {
1222 pa_cvolume_ramp_get_targets(&s->thread_info.ramp, &target);
1223 pa_sw_cvolume_multiply(&volume, &volume, &target);
1225 pa_volume_memchunk(result, &s->sample_spec, &volume);
1230 pa_cvolume target_vol;
1232 result->memblock = pa_memblock_new(s->core->mempool, length);
1234 ptr = pa_memblock_acquire(result->memblock);
1235 result->length = pa_mix(info, n,
1238 &s->thread_info.soft_volume,
1239 s->thread_info.soft_muted);
1241 if (pa_cvolume_ramp_target_active(&s->thread_info.ramp) || pa_cvolume_ramp_active(&s->thread_info.ramp)) {
1242 if (pa_cvolume_ramp_active(&s->thread_info.ramp))
1243 pa_volume_ramp_memchunk(result, &s->sample_spec, &(s->thread_info.ramp));
1245 pa_cvolume_ramp_get_targets(&s->thread_info.ramp, &target_vol);
1246 pa_volume_memchunk(result, &s->sample_spec, &target_vol);
1250 pa_memblock_release(result->memblock);
1255 inputs_drop(s, info, n, result);
1260 /* Called from IO thread context */
1261 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1262 pa_mix_info info[MAX_MIX_CHANNELS];
1264 size_t length, block_size_max;
1266 pa_sink_assert_ref(s);
1267 pa_sink_assert_io_context(s);
1268 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1270 pa_assert(target->memblock);
1271 pa_assert(target->length > 0);
1272 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1274 pa_assert(!s->thread_info.rewind_requested);
1275 pa_assert(s->thread_info.rewind_nbytes == 0);
1277 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1278 pa_silence_memchunk(target, &s->sample_spec);
1284 length = target->length;
1285 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1286 if (length > block_size_max)
1287 length = pa_frame_align(block_size_max, &s->sample_spec);
1289 pa_assert(length > 0);
1291 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1294 if (target->length > length)
1295 target->length = length;
1297 pa_silence_memchunk(target, &s->sample_spec);
1298 } else if (n == 1) {
1301 if (target->length > length)
1302 target->length = length;
1304 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1306 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1307 pa_silence_memchunk(target, &s->sample_spec);
1310 pa_cvolume target_vol;
1312 vchunk = info[0].chunk;
1313 pa_memblock_ref(vchunk.memblock);
1315 if (vchunk.length > length)
1316 vchunk.length = length;
1318 if (!pa_cvolume_is_norm(&volume) || pa_cvolume_ramp_target_active(&s->thread_info.ramp) || pa_cvolume_ramp_active(&s->thread_info.ramp)) {
1319 pa_memchunk_make_writable(&vchunk, 0);
1320 if (pa_cvolume_ramp_active(&s->thread_info.ramp)) {
1321 if (!pa_cvolume_is_norm(&volume))
1322 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1323 pa_volume_ramp_memchunk(&vchunk, &s->sample_spec, &(s->thread_info.ramp));
1326 if (pa_cvolume_ramp_target_active(&s->thread_info.ramp)) {
1327 pa_cvolume_ramp_get_targets(&s->thread_info.ramp, &target_vol);
1328 pa_sw_cvolume_multiply(&volume, &volume, &target_vol);
1330 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1334 pa_memchunk_memcpy(target, &vchunk);
1335 pa_memblock_unref(vchunk.memblock);
1340 pa_cvolume target_vol;
1342 ptr = pa_memblock_acquire(target->memblock);
1344 target->length = pa_mix(info, n,
1345 (uint8_t*) ptr + target->index, length,
1347 &s->thread_info.soft_volume,
1348 s->thread_info.soft_muted);
1350 if (pa_cvolume_ramp_target_active(&s->thread_info.ramp) || pa_cvolume_ramp_active(&s->thread_info.ramp)) {
1351 if (pa_cvolume_ramp_active(&s->thread_info.ramp))
1352 pa_volume_ramp_memchunk(target, &s->sample_spec, &(s->thread_info.ramp));
1354 pa_cvolume_ramp_get_targets(&s->thread_info.ramp, &target_vol);
1355 pa_volume_memchunk(target, &s->sample_spec, &target_vol);
1359 pa_memblock_release(target->memblock);
1362 inputs_drop(s, info, n, target);
1367 /* Called from IO thread context */
1368 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1372 pa_sink_assert_ref(s);
1373 pa_sink_assert_io_context(s);
1374 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1376 pa_assert(target->memblock);
1377 pa_assert(target->length > 0);
1378 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1380 pa_assert(!s->thread_info.rewind_requested);
1381 pa_assert(s->thread_info.rewind_nbytes == 0);
1383 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1384 pa_silence_memchunk(target, &s->sample_spec);
1397 pa_sink_render_into(s, &chunk);
1406 /* Called from IO thread context */
1407 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1408 pa_sink_assert_ref(s);
1409 pa_sink_assert_io_context(s);
1410 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1411 pa_assert(length > 0);
1412 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1415 pa_assert(!s->thread_info.rewind_requested);
1416 pa_assert(s->thread_info.rewind_nbytes == 0);
1420 pa_sink_render(s, length, result);
1422 if (result->length < length) {
1425 pa_memchunk_make_writable(result, length);
1427 chunk.memblock = result->memblock;
1428 chunk.index = result->index + result->length;
1429 chunk.length = length - result->length;
1431 pa_sink_render_into_full(s, &chunk);
1433 result->length = length;
1439 /* Called from main thread */
1440 int pa_sink_update_rate(pa_sink *s, uint32_t rate, bool passthrough) {
1442 uint32_t desired_rate = rate;
1443 uint32_t default_rate = s->default_sample_rate;
1444 uint32_t alternate_rate = s->alternate_sample_rate;
1447 bool use_alternate = false;
1449 if (rate == s->sample_spec.rate)
1452 if (!s->update_rate)
1455 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough)) {
1456 pa_log_debug("Default and alternate sample rates are the same.");
1460 if (PA_SINK_IS_RUNNING(s->state)) {
1461 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1462 s->sample_spec.rate);
1466 if (s->monitor_source) {
1467 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == true) {
1468 pa_log_info("Cannot update rate, monitor source is RUNNING");
1473 if (PA_UNLIKELY(!pa_sample_rate_valid(desired_rate)))
1477 pa_assert((default_rate % 4000 == 0) || (default_rate % 11025 == 0));
1478 pa_assert((alternate_rate % 4000 == 0) || (alternate_rate % 11025 == 0));
1480 if (default_rate % 11025 == 0) {
1481 if ((alternate_rate % 4000 == 0) && (desired_rate % 4000 == 0))
1484 /* default is 4000 multiple */
1485 if ((alternate_rate % 11025 == 0) && (desired_rate % 11025 == 0))
1490 desired_rate = alternate_rate;
1492 desired_rate = default_rate;
1494 desired_rate = rate; /* use stream sampling rate, discard default/alternate settings */
1497 if (desired_rate == s->sample_spec.rate)
1500 if (!passthrough && pa_sink_used_by(s) > 0)
1503 pa_log_debug("Suspending sink %s due to changing the sample rate.", s->name);
1504 pa_sink_suspend(s, true, PA_SUSPEND_INTERNAL);
1506 if (s->update_rate(s, desired_rate) >= 0) {
1507 /* update monitor source as well */
1508 if (s->monitor_source && !passthrough)
1509 pa_source_update_rate(s->monitor_source, desired_rate, false);
1510 pa_log_info("Changed sampling rate successfully");
1512 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1513 if (i->state == PA_SINK_INPUT_CORKED)
1514 pa_sink_input_update_rate(i);
1520 pa_sink_suspend(s, false, PA_SUSPEND_INTERNAL);
1525 /* Called from main thread */
1526 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1529 pa_sink_assert_ref(s);
1530 pa_assert_ctl_context();
1531 pa_assert(PA_SINK_IS_LINKED(s->state));
1533 /* The returned value is supposed to be in the time domain of the sound card! */
1535 if (s->state == PA_SINK_SUSPENDED)
1538 if (!(s->flags & PA_SINK_LATENCY))
1541 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1543 /* usec is unsigned, so check that the offset can be added to usec without
1545 if (-s->latency_offset <= (int64_t) usec)
1546 usec += s->latency_offset;
1553 /* Called from IO thread */
1554 pa_usec_t pa_sink_get_latency_within_thread(pa_sink *s) {
1558 pa_sink_assert_ref(s);
1559 pa_sink_assert_io_context(s);
1560 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1562 /* The returned value is supposed to be in the time domain of the sound card! */
1564 if (s->thread_info.state == PA_SINK_SUSPENDED)
1567 if (!(s->flags & PA_SINK_LATENCY))
1570 o = PA_MSGOBJECT(s);
1572 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1574 if (o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1577 /* usec is unsigned, so check that the offset can be added to usec without
1579 if (-s->thread_info.latency_offset <= (int64_t) usec)
1580 usec += s->thread_info.latency_offset;
1587 /* Called from the main thread (and also from the IO thread while the main
1588 * thread is waiting).
1590 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1591 * set. Instead, flat volume mode is detected by checking whether the root sink
1592 * has the flag set. */
1593 bool pa_sink_flat_volume_enabled(pa_sink *s) {
1594 pa_sink_assert_ref(s);
1596 s = pa_sink_get_master(s);
1599 return (s->flags & PA_SINK_FLAT_VOLUME);
1604 /* Called from the main thread (and also from the IO thread while the main
1605 * thread is waiting). */
1606 pa_sink *pa_sink_get_master(pa_sink *s) {
1607 pa_sink_assert_ref(s);
1609 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1610 if (PA_UNLIKELY(!s->input_to_master))
1613 s = s->input_to_master->sink;
1619 /* Called from main context */
1620 bool pa_sink_is_passthrough(pa_sink *s) {
1621 pa_sink_input *alt_i;
1624 pa_sink_assert_ref(s);
1626 /* one and only one PASSTHROUGH input can possibly be connected */
1627 if (pa_idxset_size(s->inputs) == 1) {
1628 alt_i = pa_idxset_first(s->inputs, &idx);
1630 if (pa_sink_input_is_passthrough(alt_i))
1637 /* Called from main context */
1638 void pa_sink_enter_passthrough(pa_sink *s) {
1641 /* disable the monitor in passthrough mode */
1642 if (s->monitor_source) {
1643 pa_log_debug("Suspending monitor source %s, because the sink is entering the passthrough mode.", s->monitor_source->name);
1644 pa_source_suspend(s->monitor_source, true, PA_SUSPEND_PASSTHROUGH);
1647 /* set the volume to NORM */
1648 s->saved_volume = *pa_sink_get_volume(s, true);
1649 s->saved_save_volume = s->save_volume;
1651 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1652 pa_sink_set_volume(s, &volume, true, false);
1655 /* Called from main context */
1656 void pa_sink_leave_passthrough(pa_sink *s) {
1657 /* Unsuspend monitor */
1658 if (s->monitor_source) {
1659 pa_log_debug("Resuming monitor source %s, because the sink is leaving the passthrough mode.", s->monitor_source->name);
1660 pa_source_suspend(s->monitor_source, false, PA_SUSPEND_PASSTHROUGH);
1663 /* Restore sink volume to what it was before we entered passthrough mode */
1664 pa_sink_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1666 pa_cvolume_init(&s->saved_volume);
1667 s->saved_save_volume = false;
1670 /* Called from main context. */
1671 static void compute_reference_ratio(pa_sink_input *i) {
1673 pa_cvolume remapped;
1676 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1679 * Calculates the reference ratio from the sink's reference
1680 * volume. This basically calculates:
1682 * i->reference_ratio = i->volume / i->sink->reference_volume
1685 remapped = i->sink->reference_volume;
1686 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1688 i->reference_ratio.channels = i->sample_spec.channels;
1690 for (c = 0; c < i->sample_spec.channels; c++) {
1692 /* We don't update when the sink volume is 0 anyway */
1693 if (remapped.values[c] <= PA_VOLUME_MUTED)
1696 /* Don't update the reference ratio unless necessary */
1697 if (pa_sw_volume_multiply(
1698 i->reference_ratio.values[c],
1699 remapped.values[c]) == i->volume.values[c])
1702 i->reference_ratio.values[c] = pa_sw_volume_divide(
1703 i->volume.values[c],
1704 remapped.values[c]);
1708 /* Called from main context. Only called for the root sink in volume sharing
1709 * cases, except for internal recursive calls. */
1710 static void compute_reference_ratios(pa_sink *s) {
1714 pa_sink_assert_ref(s);
1715 pa_assert_ctl_context();
1716 pa_assert(PA_SINK_IS_LINKED(s->state));
1717 pa_assert(pa_sink_flat_volume_enabled(s));
1719 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1720 compute_reference_ratio(i);
1722 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1723 compute_reference_ratios(i->origin_sink);
1727 /* Called from main context. Only called for the root sink in volume sharing
1728 * cases, except for internal recursive calls. */
1729 static void compute_real_ratios(pa_sink *s) {
1733 pa_sink_assert_ref(s);
1734 pa_assert_ctl_context();
1735 pa_assert(PA_SINK_IS_LINKED(s->state));
1736 pa_assert(pa_sink_flat_volume_enabled(s));
1738 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1740 pa_cvolume remapped;
1742 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1743 /* The origin sink uses volume sharing, so this input's real ratio
1744 * is handled as a special case - the real ratio must be 0 dB, and
1745 * as a result i->soft_volume must equal i->volume_factor. */
1746 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1747 i->soft_volume = i->volume_factor;
1749 compute_real_ratios(i->origin_sink);
1755 * This basically calculates:
1757 * i->real_ratio := i->volume / s->real_volume
1758 * i->soft_volume := i->real_ratio * i->volume_factor
1761 remapped = s->real_volume;
1762 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1764 i->real_ratio.channels = i->sample_spec.channels;
1765 i->soft_volume.channels = i->sample_spec.channels;
1767 for (c = 0; c < i->sample_spec.channels; c++) {
1769 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1770 /* We leave i->real_ratio untouched */
1771 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1775 /* Don't lose accuracy unless necessary */
1776 if (pa_sw_volume_multiply(
1777 i->real_ratio.values[c],
1778 remapped.values[c]) != i->volume.values[c])
1780 i->real_ratio.values[c] = pa_sw_volume_divide(
1781 i->volume.values[c],
1782 remapped.values[c]);
1784 i->soft_volume.values[c] = pa_sw_volume_multiply(
1785 i->real_ratio.values[c],
1786 i->volume_factor.values[c]);
1789 /* We don't copy the soft_volume to the thread_info data
1790 * here. That must be done by the caller */
1794 static pa_cvolume *cvolume_remap_minimal_impact(
1796 const pa_cvolume *template,
1797 const pa_channel_map *from,
1798 const pa_channel_map *to) {
1803 pa_assert(template);
1806 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1807 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1809 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1810 * mapping from sink input to sink volumes:
1812 * If template is a possible remapping from v it is used instead
1813 * of remapping anew.
1815 * If the channel maps don't match we set an all-channel volume on
1816 * the sink to ensure that changing a volume on one stream has no
1817 * effect that cannot be compensated for in another stream that
1818 * does not have the same channel map as the sink. */
1820 if (pa_channel_map_equal(from, to))
1824 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1829 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1833 /* Called from main thread. Only called for the root sink in volume sharing
1834 * cases, except for internal recursive calls. */
1835 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1839 pa_sink_assert_ref(s);
1840 pa_assert(max_volume);
1841 pa_assert(channel_map);
1842 pa_assert(pa_sink_flat_volume_enabled(s));
1844 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1845 pa_cvolume remapped;
1847 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1848 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1850 /* Ignore this input. The origin sink uses volume sharing, so this
1851 * input's volume will be set to be equal to the root sink's real
1852 * volume. Obviously this input's current volume must not then
1853 * affect what the root sink's real volume will be. */
1857 remapped = i->volume;
1858 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1859 pa_cvolume_merge(max_volume, max_volume, &remapped);
1863 /* Called from main thread. Only called for the root sink in volume sharing
1864 * cases, except for internal recursive calls. */
1865 static bool has_inputs(pa_sink *s) {
1869 pa_sink_assert_ref(s);
1871 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1872 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1879 /* Called from main thread. Only called for the root sink in volume sharing
1880 * cases, except for internal recursive calls. */
1881 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1885 pa_sink_assert_ref(s);
1886 pa_assert(new_volume);
1887 pa_assert(channel_map);
1889 s->real_volume = *new_volume;
1890 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1892 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1893 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1894 if (pa_sink_flat_volume_enabled(s)) {
1895 pa_cvolume old_volume = i->volume;
1897 /* Follow the root sink's real volume. */
1898 i->volume = *new_volume;
1899 pa_cvolume_remap(&i->volume, channel_map, &i->channel_map);
1900 compute_reference_ratio(i);
1902 /* The volume changed, let's tell people so */
1903 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1904 if (i->volume_changed)
1905 i->volume_changed(i);
1907 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1911 update_real_volume(i->origin_sink, new_volume, channel_map);
1916 /* Called from main thread. Only called for the root sink in shared volume
1918 static void compute_real_volume(pa_sink *s) {
1919 pa_sink_assert_ref(s);
1920 pa_assert_ctl_context();
1921 pa_assert(PA_SINK_IS_LINKED(s->state));
1922 pa_assert(pa_sink_flat_volume_enabled(s));
1923 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1925 /* This determines the maximum volume of all streams and sets
1926 * s->real_volume accordingly. */
1928 if (!has_inputs(s)) {
1929 /* In the special case that we have no sink inputs we leave the
1930 * volume unmodified. */
1931 update_real_volume(s, &s->reference_volume, &s->channel_map);
1935 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1937 /* First let's determine the new maximum volume of all inputs
1938 * connected to this sink */
1939 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1940 update_real_volume(s, &s->real_volume, &s->channel_map);
1942 /* Then, let's update the real ratios/soft volumes of all inputs
1943 * connected to this sink */
1944 compute_real_ratios(s);
1947 /* Called from main thread. Only called for the root sink in shared volume
1948 * cases, except for internal recursive calls. */
1949 static void propagate_reference_volume(pa_sink *s) {
1953 pa_sink_assert_ref(s);
1954 pa_assert_ctl_context();
1955 pa_assert(PA_SINK_IS_LINKED(s->state));
1956 pa_assert(pa_sink_flat_volume_enabled(s));
1958 /* This is called whenever the sink volume changes that is not
1959 * caused by a sink input volume change. We need to fix up the
1960 * sink input volumes accordingly */
1962 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1963 pa_cvolume old_volume;
1965 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1966 propagate_reference_volume(i->origin_sink);
1968 /* Since the origin sink uses volume sharing, this input's volume
1969 * needs to be updated to match the root sink's real volume, but
1970 * that will be done later in update_shared_real_volume(). */
1974 old_volume = i->volume;
1976 /* This basically calculates:
1978 * i->volume := s->reference_volume * i->reference_ratio */
1980 i->volume = s->reference_volume;
1981 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
1982 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
1984 /* The volume changed, let's tell people so */
1985 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1987 if (i->volume_changed)
1988 i->volume_changed(i);
1990 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1995 /* Called from main thread. Only called for the root sink in volume sharing
1996 * cases, except for internal recursive calls. The return value indicates
1997 * whether any reference volume actually changed. */
1998 static bool update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
2000 bool reference_volume_changed;
2004 pa_sink_assert_ref(s);
2005 pa_assert(PA_SINK_IS_LINKED(s->state));
2007 pa_assert(channel_map);
2008 pa_assert(pa_cvolume_valid(v));
2011 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
2013 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
2014 s->reference_volume = volume;
2016 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
2018 if (reference_volume_changed)
2019 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2020 else if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2021 /* If the root sink's volume doesn't change, then there can't be any
2022 * changes in the other sinks in the sink tree either.
2024 * It's probably theoretically possible that even if the root sink's
2025 * volume changes slightly, some filter sink doesn't change its volume
2026 * due to rounding errors. If that happens, we still want to propagate
2027 * the changed root sink volume to the sinks connected to the
2028 * intermediate sink that didn't change its volume. This theoretical
2029 * possibility is the reason why we have that !(s->flags &
2030 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
2031 * notice even if we returned here false always if
2032 * reference_volume_changed is false. */
2035 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2036 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2037 update_reference_volume(i->origin_sink, v, channel_map, false);
2043 /* Called from main thread */
2044 void pa_sink_set_volume(
2046 const pa_cvolume *volume,
2050 pa_cvolume new_reference_volume;
2053 pa_sink_assert_ref(s);
2054 pa_assert_ctl_context();
2055 pa_assert(PA_SINK_IS_LINKED(s->state));
2056 pa_assert(!volume || pa_cvolume_valid(volume));
2057 pa_assert(volume || pa_sink_flat_volume_enabled(s));
2058 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
2060 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2061 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2062 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
2063 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
2067 /* In case of volume sharing, the volume is set for the root sink first,
2068 * from which it's then propagated to the sharing sinks. */
2069 root_sink = pa_sink_get_master(s);
2071 if (PA_UNLIKELY(!root_sink))
2074 /* As a special exception we accept mono volumes on all sinks --
2075 * even on those with more complex channel maps */
2078 if (pa_cvolume_compatible(volume, &s->sample_spec))
2079 new_reference_volume = *volume;
2081 new_reference_volume = s->reference_volume;
2082 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
2085 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2087 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
2088 if (pa_sink_flat_volume_enabled(root_sink)) {
2089 /* OK, propagate this volume change back to the inputs */
2090 propagate_reference_volume(root_sink);
2092 /* And now recalculate the real volume */
2093 compute_real_volume(root_sink);
2095 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
2099 /* If volume is NULL we synchronize the sink's real and
2100 * reference volumes with the stream volumes. */
2102 pa_assert(pa_sink_flat_volume_enabled(root_sink));
2104 /* Ok, let's determine the new real volume */
2105 compute_real_volume(root_sink);
2107 /* Let's 'push' the reference volume if necessary */
2108 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
2109 /* If the sink and it's root don't have the same number of channels, we need to remap */
2110 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
2111 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
2112 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
2114 /* Now that the reference volume is updated, we can update the streams'
2115 * reference ratios. */
2116 compute_reference_ratios(root_sink);
2119 if (root_sink->set_volume) {
2120 /* If we have a function set_volume(), then we do not apply a
2121 * soft volume by default. However, set_volume() is free to
2122 * apply one to root_sink->soft_volume */
2124 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
2125 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2126 root_sink->set_volume(root_sink);
2129 /* If we have no function set_volume(), then the soft volume
2130 * becomes the real volume */
2131 root_sink->soft_volume = root_sink->real_volume;
2133 /* This tells the sink that soft volume and/or real volume changed */
2135 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2138 /* Called from main thread */
2139 void pa_sink_set_volume_ramp(
2141 const pa_cvolume_ramp *ramp,
2145 pa_sink_assert_ref(s);
2146 pa_assert_ctl_context();
2147 pa_assert(PA_SINK_IS_LINKED(s->state));
2150 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
2151 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
2152 if (pa_sink_is_passthrough(s)) {
2153 pa_log_warn("Cannot do volume ramp, Sink is connected to PASSTHROUGH input");
2157 pa_cvolume_ramp_convert(ramp, &s->ramp, s->sample_spec.rate);
2159 /* This tells the sink that volume ramp changed */
2161 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_RAMP, NULL, 0, NULL) == 0);
2164 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2165 * Only to be called by sink implementor */
2166 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2168 pa_sink_assert_ref(s);
2169 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2171 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2172 pa_sink_assert_io_context(s);
2174 pa_assert_ctl_context();
2177 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2179 s->soft_volume = *volume;
2181 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2182 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2184 s->thread_info.soft_volume = s->soft_volume;
2187 /* Called from the main thread. Only called for the root sink in volume sharing
2188 * cases, except for internal recursive calls. */
2189 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2193 pa_sink_assert_ref(s);
2194 pa_assert(old_real_volume);
2195 pa_assert_ctl_context();
2196 pa_assert(PA_SINK_IS_LINKED(s->state));
2198 /* This is called when the hardware's real volume changes due to
2199 * some external event. We copy the real volume into our
2200 * reference volume and then rebuild the stream volumes based on
2201 * i->real_ratio which should stay fixed. */
2203 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2204 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2207 /* 1. Make the real volume the reference volume */
2208 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
2211 if (pa_sink_flat_volume_enabled(s)) {
2213 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2214 pa_cvolume old_volume = i->volume;
2216 /* 2. Since the sink's reference and real volumes are equal
2217 * now our ratios should be too. */
2218 i->reference_ratio = i->real_ratio;
2220 /* 3. Recalculate the new stream reference volume based on the
2221 * reference ratio and the sink's reference volume.
2223 * This basically calculates:
2225 * i->volume = s->reference_volume * i->reference_ratio
2227 * This is identical to propagate_reference_volume() */
2228 i->volume = s->reference_volume;
2229 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
2230 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
2232 /* Notify if something changed */
2233 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
2235 if (i->volume_changed)
2236 i->volume_changed(i);
2238 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
2241 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2242 propagate_real_volume(i->origin_sink, old_real_volume);
2246 /* Something got changed in the hardware. It probably makes sense
2247 * to save changed hw settings given that hw volume changes not
2248 * triggered by PA are almost certainly done by the user. */
2249 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2250 s->save_volume = true;
2253 /* Called from io thread */
2254 void pa_sink_update_volume_and_mute(pa_sink *s) {
2256 pa_sink_assert_io_context(s);
2258 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2261 /* Called from main thread */
2262 const pa_cvolume *pa_sink_get_volume(pa_sink *s, bool force_refresh) {
2263 pa_sink_assert_ref(s);
2264 pa_assert_ctl_context();
2265 pa_assert(PA_SINK_IS_LINKED(s->state));
2267 if (s->refresh_volume || force_refresh) {
2268 struct pa_cvolume old_real_volume;
2270 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2272 old_real_volume = s->real_volume;
2274 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2277 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2279 update_real_volume(s, &s->real_volume, &s->channel_map);
2280 propagate_real_volume(s, &old_real_volume);
2283 return &s->reference_volume;
2286 /* Called from main thread. In volume sharing cases, only the root sink may
2288 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2289 pa_cvolume old_real_volume;
2291 pa_sink_assert_ref(s);
2292 pa_assert_ctl_context();
2293 pa_assert(PA_SINK_IS_LINKED(s->state));
2294 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2296 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2298 old_real_volume = s->real_volume;
2299 update_real_volume(s, new_real_volume, &s->channel_map);
2300 propagate_real_volume(s, &old_real_volume);
2303 /* Called from main thread */
2304 void pa_sink_set_mute(pa_sink *s, bool mute, bool save) {
2307 pa_sink_assert_ref(s);
2308 pa_assert_ctl_context();
2309 pa_assert(PA_SINK_IS_LINKED(s->state));
2311 old_muted = s->muted;
2313 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
2315 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute)
2318 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2320 if (old_muted != s->muted)
2321 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2324 /* Called from main thread */
2325 bool pa_sink_get_mute(pa_sink *s, bool force_refresh) {
2327 pa_sink_assert_ref(s);
2328 pa_assert_ctl_context();
2329 pa_assert(PA_SINK_IS_LINKED(s->state));
2331 if (s->refresh_muted || force_refresh) {
2332 bool old_muted = s->muted;
2334 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_mute)
2337 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
2339 if (old_muted != s->muted) {
2340 s->save_muted = true;
2342 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2344 /* Make sure the soft mute status stays in sync */
2345 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2352 /* Called from main thread */
2353 void pa_sink_mute_changed(pa_sink *s, bool new_muted) {
2354 pa_sink_assert_ref(s);
2355 pa_assert_ctl_context();
2356 pa_assert(PA_SINK_IS_LINKED(s->state));
2358 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2360 if (s->muted == new_muted)
2363 s->muted = new_muted;
2364 s->save_muted = true;
2366 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2369 /* Called from main thread */
2370 bool pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2371 pa_sink_assert_ref(s);
2372 pa_assert_ctl_context();
2375 pa_proplist_update(s->proplist, mode, p);
2377 if (PA_SINK_IS_LINKED(s->state)) {
2378 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2379 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2385 /* Called from main thread */
2386 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2387 void pa_sink_set_description(pa_sink *s, const char *description) {
2389 pa_sink_assert_ref(s);
2390 pa_assert_ctl_context();
2392 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2395 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2397 if (old && description && pa_streq(old, description))
2401 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2403 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2405 if (s->monitor_source) {
2408 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2409 pa_source_set_description(s->monitor_source, n);
2413 if (PA_SINK_IS_LINKED(s->state)) {
2414 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2415 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2419 /* Called from main thread */
2420 unsigned pa_sink_linked_by(pa_sink *s) {
2423 pa_sink_assert_ref(s);
2424 pa_assert_ctl_context();
2425 pa_assert(PA_SINK_IS_LINKED(s->state));
2427 ret = pa_idxset_size(s->inputs);
2429 /* We add in the number of streams connected to us here. Please
2430 * note the asymmetry to pa_sink_used_by()! */
2432 if (s->monitor_source)
2433 ret += pa_source_linked_by(s->monitor_source);
2438 /* Called from main thread */
2439 unsigned pa_sink_used_by(pa_sink *s) {
2442 pa_sink_assert_ref(s);
2443 pa_assert_ctl_context();
2444 pa_assert(PA_SINK_IS_LINKED(s->state));
2446 ret = pa_idxset_size(s->inputs);
2447 pa_assert(ret >= s->n_corked);
2449 /* Streams connected to our monitor source do not matter for
2450 * pa_sink_used_by()!.*/
2452 return ret - s->n_corked;
2455 /* Called from main thread */
2456 unsigned pa_sink_check_suspend(pa_sink *s) {
2461 pa_sink_assert_ref(s);
2462 pa_assert_ctl_context();
2464 if (!PA_SINK_IS_LINKED(s->state))
2469 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2470 pa_sink_input_state_t st;
2472 st = pa_sink_input_get_state(i);
2474 /* We do not assert here. It is perfectly valid for a sink input to
2475 * be in the INIT state (i.e. created, marked done but not yet put)
2476 * and we should not care if it's unlinked as it won't contribute
2477 * towards our busy status.
2479 if (!PA_SINK_INPUT_IS_LINKED(st))
2482 if (st == PA_SINK_INPUT_CORKED)
2485 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2491 if (s->monitor_source)
2492 ret += pa_source_check_suspend(s->monitor_source);
2497 /* Called from the IO thread */
2498 static void sync_input_volumes_within_thread(pa_sink *s) {
2502 pa_sink_assert_ref(s);
2503 pa_sink_assert_io_context(s);
2505 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2506 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2509 i->thread_info.soft_volume = i->soft_volume;
2510 pa_sink_input_request_rewind(i, 0, true, false, false);
2514 /* Called from the IO thread. Only called for the root sink in volume sharing
2515 * cases, except for internal recursive calls. */
2516 static void set_shared_volume_within_thread(pa_sink *s) {
2517 pa_sink_input *i = NULL;
2520 pa_sink_assert_ref(s);
2522 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2524 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2525 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2526 set_shared_volume_within_thread(i->origin_sink);
2530 /* Called from IO thread, except when it is not */
2531 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2532 pa_sink *s = PA_SINK(o);
2533 pa_sink_assert_ref(s);
2535 switch ((pa_sink_message_t) code) {
2537 case PA_SINK_MESSAGE_ADD_INPUT: {
2538 pa_sink_input *i = PA_SINK_INPUT(userdata);
2540 /* If you change anything here, make sure to change the
2541 * sink input handling a few lines down at
2542 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2544 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2546 /* Since the caller sleeps in pa_sink_input_put(), we can
2547 * safely access data outside of thread_info even though
2550 if ((i->thread_info.sync_prev = i->sync_prev)) {
2551 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2552 pa_assert(i->sync_prev->sync_next == i);
2553 i->thread_info.sync_prev->thread_info.sync_next = i;
2556 if ((i->thread_info.sync_next = i->sync_next)) {
2557 pa_assert(i->sink == i->thread_info.sync_next->sink);
2558 pa_assert(i->sync_next->sync_prev == i);
2559 i->thread_info.sync_next->thread_info.sync_prev = i;
2562 pa_assert(!i->thread_info.attached);
2563 i->thread_info.attached = true;
2568 pa_sink_input_set_state_within_thread(i, i->state);
2570 /* The requested latency of the sink input needs to be fixed up and
2571 * then configured on the sink. If this causes the sink latency to
2572 * go down, the sink implementor is responsible for doing a rewind
2573 * in the update_requested_latency() callback to ensure that the
2574 * sink buffer doesn't contain more data than what the new latency
2577 * XXX: Does it really make sense to push this responsibility to
2578 * the sink implementors? Wouldn't it be better to do it once in
2579 * the core than many times in the modules? */
2581 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2582 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2584 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2585 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2587 /* We don't rewind here automatically. This is left to the
2588 * sink input implementor because some sink inputs need a
2589 * slow start, i.e. need some time to buffer client
2590 * samples before beginning streaming.
2592 * XXX: Does it really make sense to push this functionality to
2593 * the sink implementors? Wouldn't it be better to do it once in
2594 * the core than many times in the modules? */
2596 /* In flat volume mode we need to update the volume as
2598 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2601 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2602 pa_sink_input *i = PA_SINK_INPUT(userdata);
2604 /* If you change anything here, make sure to change the
2605 * sink input handling a few lines down at
2606 * PA_SINK_MESSAGE_START_MOVE, too. */
2611 pa_sink_input_set_state_within_thread(i, i->state);
2613 pa_assert(i->thread_info.attached);
2614 i->thread_info.attached = false;
2616 /* Since the caller sleeps in pa_sink_input_unlink(),
2617 * we can safely access data outside of thread_info even
2618 * though it is mutable */
2620 pa_assert(!i->sync_prev);
2621 pa_assert(!i->sync_next);
2623 if (i->thread_info.sync_prev) {
2624 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2625 i->thread_info.sync_prev = NULL;
2628 if (i->thread_info.sync_next) {
2629 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2630 i->thread_info.sync_next = NULL;
2633 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2634 pa_sink_input_unref(i);
2636 pa_sink_invalidate_requested_latency(s, true);
2637 pa_sink_request_rewind(s, (size_t) -1);
2639 /* In flat volume mode we need to update the volume as
2641 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2644 case PA_SINK_MESSAGE_START_MOVE: {
2645 pa_sink_input *i = PA_SINK_INPUT(userdata);
2647 /* We don't support moving synchronized streams. */
2648 pa_assert(!i->sync_prev);
2649 pa_assert(!i->sync_next);
2650 pa_assert(!i->thread_info.sync_next);
2651 pa_assert(!i->thread_info.sync_prev);
2653 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2655 size_t sink_nbytes, total_nbytes;
2657 /* The old sink probably has some audio from this
2658 * stream in its buffer. We want to "take it back" as
2659 * much as possible and play it to the new sink. We
2660 * don't know at this point how much the old sink can
2661 * rewind. We have to pick something, and that
2662 * something is the full latency of the old sink here.
2663 * So we rewind the stream buffer by the sink latency
2664 * amount, which may be more than what we should
2665 * rewind. This can result in a chunk of audio being
2666 * played both to the old sink and the new sink.
2668 * FIXME: Fix this code so that we don't have to make
2669 * guesses about how much the sink will actually be
2670 * able to rewind. If someone comes up with a solution
2671 * for this, something to note is that the part of the
2672 * latency that the old sink couldn't rewind should
2673 * ideally be compensated after the stream has moved
2674 * to the new sink by adding silence. The new sink
2675 * most likely can't start playing the moved stream
2676 * immediately, and that gap should be removed from
2677 * the "compensation silence" (at least at the time of
2678 * writing this, the move finish code will actually
2679 * already take care of dropping the new sink's
2680 * unrewindable latency, so taking into account the
2681 * unrewindable latency of the old sink is the only
2684 * The render_memblockq contents are discarded,
2685 * because when the sink changes, the format of the
2686 * audio stored in the render_memblockq may change
2687 * too, making the stored audio invalid. FIXME:
2688 * However, the read and write indices are moved back
2689 * the same amount, so if they are not the same now,
2690 * they won't be the same after the rewind either. If
2691 * the write index of the render_memblockq is ahead of
2692 * the read index, then the render_memblockq will feed
2693 * the new sink some silence first, which it shouldn't
2694 * do. The write index should be flushed to be the
2695 * same as the read index. */
2697 /* Get the latency of the sink */
2698 usec = pa_sink_get_latency_within_thread(s);
2699 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2700 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2702 if (total_nbytes > 0) {
2703 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2704 i->thread_info.rewrite_flush = true;
2705 pa_sink_input_process_rewind(i, sink_nbytes);
2712 pa_assert(i->thread_info.attached);
2713 i->thread_info.attached = false;
2715 /* Let's remove the sink input ...*/
2716 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2717 pa_sink_input_unref(i);
2719 pa_sink_invalidate_requested_latency(s, true);
2721 pa_log_debug("Requesting rewind due to started move");
2722 pa_sink_request_rewind(s, (size_t) -1);
2724 /* In flat volume mode we need to update the volume as
2726 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2729 case PA_SINK_MESSAGE_FINISH_MOVE: {
2730 pa_sink_input *i = PA_SINK_INPUT(userdata);
2732 /* We don't support moving synchronized streams. */
2733 pa_assert(!i->sync_prev);
2734 pa_assert(!i->sync_next);
2735 pa_assert(!i->thread_info.sync_next);
2736 pa_assert(!i->thread_info.sync_prev);
2738 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2740 pa_assert(!i->thread_info.attached);
2741 i->thread_info.attached = true;
2746 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2750 /* In the ideal case the new sink would start playing
2751 * the stream immediately. That requires the sink to
2752 * be able to rewind all of its latency, which usually
2753 * isn't possible, so there will probably be some gap
2754 * before the moved stream becomes audible. We then
2755 * have two possibilities: 1) start playing the stream
2756 * from where it is now, or 2) drop the unrewindable
2757 * latency of the sink from the stream. With option 1
2758 * we won't lose any audio but the stream will have a
2759 * pause. With option 2 we may lose some audio but the
2760 * stream time will be somewhat in sync with the wall
2761 * clock. Lennart seems to have chosen option 2 (one
2762 * of the reasons might have been that option 1 is
2763 * actually much harder to implement), so we drop the
2764 * latency of the new sink from the moved stream and
2765 * hope that the sink will undo most of that in the
2768 /* Get the latency of the sink */
2769 usec = pa_sink_get_latency_within_thread(s);
2770 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2773 pa_sink_input_drop(i, nbytes);
2775 pa_log_debug("Requesting rewind due to finished move");
2776 pa_sink_request_rewind(s, nbytes);
2779 /* Updating the requested sink latency has to be done
2780 * after the sink rewind request, not before, because
2781 * otherwise the sink may limit the rewind amount
2784 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2785 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2787 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2788 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2790 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2793 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2794 pa_sink *root_sink = pa_sink_get_master(s);
2796 if (PA_LIKELY(root_sink))
2797 set_shared_volume_within_thread(root_sink);
2802 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2804 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2806 pa_sink_volume_change_push(s);
2808 /* Fall through ... */
2810 case PA_SINK_MESSAGE_SET_VOLUME:
2812 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2813 s->thread_info.soft_volume = s->soft_volume;
2814 pa_sink_request_rewind(s, (size_t) -1);
2816 /* Fall through ... */
2818 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2819 sync_input_volumes_within_thread(s);
2822 case PA_SINK_MESSAGE_SET_VOLUME_RAMP:
2823 /* if we have ongoing ramp where we take current start values */
2824 pa_cvolume_ramp_start_from(&s->thread_info.ramp, &s->ramp);
2825 s->thread_info.ramp = s->ramp;
2826 pa_sink_request_rewind(s, (size_t) -1);
2829 case PA_SINK_MESSAGE_GET_VOLUME:
2831 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2833 pa_sink_volume_change_flush(s);
2834 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2837 /* In case sink implementor reset SW volume. */
2838 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2839 s->thread_info.soft_volume = s->soft_volume;
2840 pa_sink_request_rewind(s, (size_t) -1);
2845 case PA_SINK_MESSAGE_SET_MUTE:
2847 if (s->thread_info.soft_muted != s->muted) {
2848 s->thread_info.soft_muted = s->muted;
2849 pa_sink_request_rewind(s, (size_t) -1);
2852 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2857 case PA_SINK_MESSAGE_GET_MUTE:
2859 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2864 case PA_SINK_MESSAGE_SET_STATE: {
2866 bool suspend_change =
2867 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2868 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2870 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2872 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2873 s->thread_info.rewind_nbytes = 0;
2874 s->thread_info.rewind_requested = false;
2877 if (suspend_change) {
2881 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2882 if (i->suspend_within_thread)
2883 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2889 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2891 pa_usec_t *usec = userdata;
2892 *usec = pa_sink_get_requested_latency_within_thread(s);
2894 /* Yes, that's right, the IO thread will see -1 when no
2895 * explicit requested latency is configured, the main
2896 * thread will see max_latency */
2897 if (*usec == (pa_usec_t) -1)
2898 *usec = s->thread_info.max_latency;
2903 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2904 pa_usec_t *r = userdata;
2906 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2911 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2912 pa_usec_t *r = userdata;
2914 r[0] = s->thread_info.min_latency;
2915 r[1] = s->thread_info.max_latency;
2920 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2922 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2925 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2927 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2930 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2932 *((size_t*) userdata) = s->thread_info.max_rewind;
2935 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2937 *((size_t*) userdata) = s->thread_info.max_request;
2940 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2942 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2945 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2947 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2950 case PA_SINK_MESSAGE_SET_PORT:
2952 pa_assert(userdata);
2954 struct sink_message_set_port *msg_data = userdata;
2955 msg_data->ret = s->set_port(s, msg_data->port);
2959 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2960 /* This message is sent from IO-thread and handled in main thread. */
2961 pa_assert_ctl_context();
2963 /* Make sure we're not messing with main thread when no longer linked */
2964 if (!PA_SINK_IS_LINKED(s->state))
2967 pa_sink_get_volume(s, true);
2968 pa_sink_get_mute(s, true);
2971 case PA_SINK_MESSAGE_SET_LATENCY_OFFSET:
2972 s->thread_info.latency_offset = offset;
2975 case PA_SINK_MESSAGE_GET_LATENCY:
2976 case PA_SINK_MESSAGE_MAX:
2983 /* Called from main thread */
2984 int pa_sink_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2989 pa_core_assert_ref(c);
2990 pa_assert_ctl_context();
2991 pa_assert(cause != 0);
2993 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2996 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
3003 /* Called from IO thread */
3004 void pa_sink_detach_within_thread(pa_sink *s) {
3008 pa_sink_assert_ref(s);
3009 pa_sink_assert_io_context(s);
3010 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3012 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3016 if (s->monitor_source)
3017 pa_source_detach_within_thread(s->monitor_source);
3020 /* Called from IO thread */
3021 void pa_sink_attach_within_thread(pa_sink *s) {
3025 pa_sink_assert_ref(s);
3026 pa_sink_assert_io_context(s);
3027 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3029 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3033 if (s->monitor_source)
3034 pa_source_attach_within_thread(s->monitor_source);
3037 /* Called from IO thread */
3038 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
3039 pa_sink_assert_ref(s);
3040 pa_sink_assert_io_context(s);
3041 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
3043 if (nbytes == (size_t) -1)
3044 nbytes = s->thread_info.max_rewind;
3046 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
3048 if (s->thread_info.rewind_requested &&
3049 nbytes <= s->thread_info.rewind_nbytes)
3052 s->thread_info.rewind_nbytes = nbytes;
3053 s->thread_info.rewind_requested = true;
3055 if (s->request_rewind)
3056 s->request_rewind(s);
3059 /* Called from IO thread */
3060 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
3061 pa_usec_t result = (pa_usec_t) -1;
3064 pa_usec_t monitor_latency;
3066 pa_sink_assert_ref(s);
3067 pa_sink_assert_io_context(s);
3069 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
3070 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
3072 if (s->thread_info.requested_latency_valid)
3073 return s->thread_info.requested_latency;
3075 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3076 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
3077 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
3078 result = i->thread_info.requested_sink_latency;
3080 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
3082 if (monitor_latency != (pa_usec_t) -1 &&
3083 (result == (pa_usec_t) -1 || result > monitor_latency))
3084 result = monitor_latency;
3086 if (result != (pa_usec_t) -1)
3087 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
3089 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3090 /* Only cache if properly initialized */
3091 s->thread_info.requested_latency = result;
3092 s->thread_info.requested_latency_valid = true;
3098 /* Called from main thread */
3099 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
3102 pa_sink_assert_ref(s);
3103 pa_assert_ctl_context();
3104 pa_assert(PA_SINK_IS_LINKED(s->state));
3106 if (s->state == PA_SINK_SUSPENDED)
3109 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
3114 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3115 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
3119 pa_sink_assert_ref(s);
3120 pa_sink_assert_io_context(s);
3122 if (max_rewind == s->thread_info.max_rewind)
3125 s->thread_info.max_rewind = max_rewind;
3127 if (PA_SINK_IS_LINKED(s->thread_info.state))
3128 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3129 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3131 if (s->monitor_source)
3132 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3135 /* Called from main thread */
3136 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3137 pa_sink_assert_ref(s);
3138 pa_assert_ctl_context();
3140 if (PA_SINK_IS_LINKED(s->state))
3141 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3143 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3146 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3147 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3150 pa_sink_assert_ref(s);
3151 pa_sink_assert_io_context(s);
3153 if (max_request == s->thread_info.max_request)
3156 s->thread_info.max_request = max_request;
3158 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3161 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3162 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3166 /* Called from main thread */
3167 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3168 pa_sink_assert_ref(s);
3169 pa_assert_ctl_context();
3171 if (PA_SINK_IS_LINKED(s->state))
3172 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3174 pa_sink_set_max_request_within_thread(s, max_request);
3177 /* Called from IO thread */
3178 void pa_sink_invalidate_requested_latency(pa_sink *s, bool dynamic) {
3182 pa_sink_assert_ref(s);
3183 pa_sink_assert_io_context(s);
3185 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3186 s->thread_info.requested_latency_valid = false;
3190 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3192 if (s->update_requested_latency)
3193 s->update_requested_latency(s);
3195 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3196 if (i->update_sink_requested_latency)
3197 i->update_sink_requested_latency(i);
3201 /* Called from main thread */
3202 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3203 pa_sink_assert_ref(s);
3204 pa_assert_ctl_context();
3206 /* min_latency == 0: no limit
3207 * min_latency anything else: specified limit
3209 * Similar for max_latency */
3211 if (min_latency < ABSOLUTE_MIN_LATENCY)
3212 min_latency = ABSOLUTE_MIN_LATENCY;
3214 if (max_latency <= 0 ||
3215 max_latency > ABSOLUTE_MAX_LATENCY)
3216 max_latency = ABSOLUTE_MAX_LATENCY;
3218 pa_assert(min_latency <= max_latency);
3220 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3221 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3222 max_latency == ABSOLUTE_MAX_LATENCY) ||
3223 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3225 if (PA_SINK_IS_LINKED(s->state)) {
3231 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3233 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3236 /* Called from main thread */
3237 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3238 pa_sink_assert_ref(s);
3239 pa_assert_ctl_context();
3240 pa_assert(min_latency);
3241 pa_assert(max_latency);
3243 if (PA_SINK_IS_LINKED(s->state)) {
3244 pa_usec_t r[2] = { 0, 0 };
3246 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3248 *min_latency = r[0];
3249 *max_latency = r[1];
3251 *min_latency = s->thread_info.min_latency;
3252 *max_latency = s->thread_info.max_latency;
3256 /* Called from IO thread */
3257 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3258 pa_sink_assert_ref(s);
3259 pa_sink_assert_io_context(s);
3261 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3262 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3263 pa_assert(min_latency <= max_latency);
3265 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3266 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3267 max_latency == ABSOLUTE_MAX_LATENCY) ||
3268 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3270 if (s->thread_info.min_latency == min_latency &&
3271 s->thread_info.max_latency == max_latency)
3274 s->thread_info.min_latency = min_latency;
3275 s->thread_info.max_latency = max_latency;
3277 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3281 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3282 if (i->update_sink_latency_range)
3283 i->update_sink_latency_range(i);
3286 pa_sink_invalidate_requested_latency(s, false);
3288 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3291 /* Called from main thread */
3292 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3293 pa_sink_assert_ref(s);
3294 pa_assert_ctl_context();
3296 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3297 pa_assert(latency == 0);
3301 if (latency < ABSOLUTE_MIN_LATENCY)
3302 latency = ABSOLUTE_MIN_LATENCY;
3304 if (latency > ABSOLUTE_MAX_LATENCY)
3305 latency = ABSOLUTE_MAX_LATENCY;
3307 if (PA_SINK_IS_LINKED(s->state))
3308 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3310 s->thread_info.fixed_latency = latency;
3312 pa_source_set_fixed_latency(s->monitor_source, latency);
3315 /* Called from main thread */
3316 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3319 pa_sink_assert_ref(s);
3320 pa_assert_ctl_context();
3322 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3325 if (PA_SINK_IS_LINKED(s->state))
3326 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3328 latency = s->thread_info.fixed_latency;
3333 /* Called from IO thread */
3334 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3335 pa_sink_assert_ref(s);
3336 pa_sink_assert_io_context(s);
3338 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3339 pa_assert(latency == 0);
3340 s->thread_info.fixed_latency = 0;
3342 if (s->monitor_source)
3343 pa_source_set_fixed_latency_within_thread(s->monitor_source, 0);
3348 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3349 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3351 if (s->thread_info.fixed_latency == latency)
3354 s->thread_info.fixed_latency = latency;
3356 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3360 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3361 if (i->update_sink_fixed_latency)
3362 i->update_sink_fixed_latency(i);
3365 pa_sink_invalidate_requested_latency(s, false);
3367 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3370 /* Called from main context */
3371 void pa_sink_set_latency_offset(pa_sink *s, int64_t offset) {
3372 pa_sink_assert_ref(s);
3374 s->latency_offset = offset;
3376 if (PA_SINK_IS_LINKED(s->state))
3377 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_OFFSET, NULL, offset, NULL) == 0);
3379 s->thread_info.latency_offset = offset;
3382 /* Called from main context */
3383 size_t pa_sink_get_max_rewind(pa_sink *s) {
3385 pa_assert_ctl_context();
3386 pa_sink_assert_ref(s);
3388 if (!PA_SINK_IS_LINKED(s->state))
3389 return s->thread_info.max_rewind;
3391 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3396 /* Called from main context */
3397 size_t pa_sink_get_max_request(pa_sink *s) {
3399 pa_sink_assert_ref(s);
3400 pa_assert_ctl_context();
3402 if (!PA_SINK_IS_LINKED(s->state))
3403 return s->thread_info.max_request;
3405 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3410 /* Called from main context */
3411 int pa_sink_set_port(pa_sink *s, const char *name, bool save) {
3412 pa_device_port *port;
3415 pa_sink_assert_ref(s);
3416 pa_assert_ctl_context();
3419 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3420 return -PA_ERR_NOTIMPLEMENTED;
3424 return -PA_ERR_NOENTITY;
3426 if (!(port = pa_hashmap_get(s->ports, name)))
3427 return -PA_ERR_NOENTITY;
3429 if (s->active_port == port) {
3430 s->save_port = s->save_port || save;
3434 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3435 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3436 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3440 ret = s->set_port(s, port);
3443 return -PA_ERR_NOENTITY;
3445 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3447 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3449 s->active_port = port;
3450 s->save_port = save;
3452 pa_sink_set_latency_offset(s, s->active_port->latency_offset);
3454 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3459 bool pa_device_init_icon(pa_proplist *p, bool is_sink) {
3460 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3464 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3467 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3469 if (pa_streq(ff, "microphone"))
3470 t = "audio-input-microphone";
3471 else if (pa_streq(ff, "webcam"))
3473 else if (pa_streq(ff, "computer"))
3475 else if (pa_streq(ff, "handset"))
3477 else if (pa_streq(ff, "portable"))
3478 t = "multimedia-player";
3479 else if (pa_streq(ff, "tv"))
3480 t = "video-display";
3483 * The following icons are not part of the icon naming spec,
3484 * because Rodney Dawes sucks as the maintainer of that spec.
3486 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3488 else if (pa_streq(ff, "headset"))
3489 t = "audio-headset";
3490 else if (pa_streq(ff, "headphone"))
3491 t = "audio-headphones";
3492 else if (pa_streq(ff, "speaker"))
3493 t = "audio-speakers";
3494 else if (pa_streq(ff, "hands-free"))
3495 t = "audio-handsfree";
3499 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3500 if (pa_streq(c, "modem"))
3507 t = "audio-input-microphone";
3510 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3511 if (strstr(profile, "analog"))
3513 else if (strstr(profile, "iec958"))
3515 else if (strstr(profile, "hdmi"))
3519 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3521 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3526 bool pa_device_init_description(pa_proplist *p) {
3527 const char *s, *d = NULL, *k;
3530 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3533 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3534 if (pa_streq(s, "internal"))
3535 d = _("Built-in Audio");
3538 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3539 if (pa_streq(s, "modem"))
3543 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3548 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3551 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3553 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3558 bool pa_device_init_intended_roles(pa_proplist *p) {
3562 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3565 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3566 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3567 || pa_streq(s, "headset")) {
3568 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3575 unsigned pa_device_init_priority(pa_proplist *p) {
3577 unsigned priority = 0;
3581 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3583 if (pa_streq(s, "sound"))
3585 else if (!pa_streq(s, "modem"))
3589 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3591 if (pa_streq(s, "internal"))
3593 else if (pa_streq(s, "speaker"))
3595 else if (pa_streq(s, "headphone"))
3599 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3601 if (pa_streq(s, "pci"))
3603 else if (pa_streq(s, "usb"))
3605 else if (pa_streq(s, "bluetooth"))
3609 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3611 if (pa_startswith(s, "analog-"))
3613 else if (pa_startswith(s, "iec958-"))
3620 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3622 /* Called from the IO thread. */
3623 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3624 pa_sink_volume_change *c;
3625 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3626 c = pa_xnew(pa_sink_volume_change, 1);
3628 PA_LLIST_INIT(pa_sink_volume_change, c);
3630 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3634 /* Called from the IO thread. */
3635 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3637 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3641 /* Called from the IO thread. */
3642 void pa_sink_volume_change_push(pa_sink *s) {
3643 pa_sink_volume_change *c = NULL;
3644 pa_sink_volume_change *nc = NULL;
3645 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3647 const char *direction = NULL;
3650 nc = pa_sink_volume_change_new(s);
3652 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3653 * Adding one more volume for HW would get us rid of this, but I am trying
3654 * to survive with the ones we already have. */
3655 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3657 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3658 pa_log_debug("Volume not changing");
3659 pa_sink_volume_change_free(nc);
3663 nc->at = pa_sink_get_latency_within_thread(s);
3664 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3666 if (s->thread_info.volume_changes_tail) {
3667 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3668 /* If volume is going up let's do it a bit late. If it is going
3669 * down let's do it a bit early. */
3670 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3671 if (nc->at + safety_margin > c->at) {
3672 nc->at += safety_margin;
3677 else if (nc->at - safety_margin > c->at) {
3678 nc->at -= safety_margin;
3686 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3687 nc->at += safety_margin;
3690 nc->at -= safety_margin;
3693 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3696 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3699 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3701 /* We can ignore volume events that came earlier but should happen later than this. */
3702 PA_LLIST_FOREACH(c, nc->next) {
3703 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3704 pa_sink_volume_change_free(c);
3707 s->thread_info.volume_changes_tail = nc;
3710 /* Called from the IO thread. */
3711 static void pa_sink_volume_change_flush(pa_sink *s) {
3712 pa_sink_volume_change *c = s->thread_info.volume_changes;
3714 s->thread_info.volume_changes = NULL;
3715 s->thread_info.volume_changes_tail = NULL;
3717 pa_sink_volume_change *next = c->next;
3718 pa_sink_volume_change_free(c);
3723 /* Called from the IO thread. */
3724 bool pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3730 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3736 pa_assert(s->write_volume);
3738 now = pa_rtclock_now();
3740 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3741 pa_sink_volume_change *c = s->thread_info.volume_changes;
3742 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3743 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3744 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3746 s->thread_info.current_hw_volume = c->hw_volume;
3747 pa_sink_volume_change_free(c);
3753 if (s->thread_info.volume_changes) {
3755 *usec_to_next = s->thread_info.volume_changes->at - now;
3756 if (pa_log_ratelimit(PA_LOG_DEBUG))
3757 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3762 s->thread_info.volume_changes_tail = NULL;
3767 /* Called from the IO thread. */
3768 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3769 /* All the queued volume events later than current latency are shifted to happen earlier. */
3770 pa_sink_volume_change *c;
3771 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3772 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3773 pa_usec_t limit = pa_sink_get_latency_within_thread(s);
3775 pa_log_debug("latency = %lld", (long long) limit);
3776 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3778 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3779 pa_usec_t modified_limit = limit;
3780 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3781 modified_limit -= s->thread_info.volume_change_safety_margin;
3783 modified_limit += s->thread_info.volume_change_safety_margin;
3784 if (c->at > modified_limit) {
3786 if (c->at < modified_limit)
3787 c->at = modified_limit;
3789 prev_vol = pa_cvolume_avg(&c->hw_volume);
3791 pa_sink_volume_change_apply(s, NULL);
3794 /* Called from the main thread */
3795 /* Gets the list of formats supported by the sink. The members and idxset must
3796 * be freed by the caller. */
3797 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3802 if (s->get_formats) {
3803 /* Sink supports format query, all is good */
3804 ret = s->get_formats(s);
3806 /* Sink doesn't support format query, so assume it does PCM */
3807 pa_format_info *f = pa_format_info_new();
3808 f->encoding = PA_ENCODING_PCM;
3810 ret = pa_idxset_new(NULL, NULL);
3811 pa_idxset_put(ret, f, NULL);
3817 /* Called from the main thread */
3818 /* Allows an external source to set what formats a sink supports if the sink
3819 * permits this. The function makes a copy of the formats on success. */
3820 bool pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3825 /* Sink supports setting formats -- let's give it a shot */
3826 return s->set_formats(s, formats);
3828 /* Sink doesn't support setting this -- bail out */
3832 /* Called from the main thread */
3833 /* Checks if the sink can accept this format */
3834 bool pa_sink_check_format(pa_sink *s, pa_format_info *f) {
3835 pa_idxset *formats = NULL;
3841 formats = pa_sink_get_formats(s);
3844 pa_format_info *finfo_device;
3847 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3848 if (pa_format_info_is_compatible(finfo_device, f)) {
3854 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
3860 /* Called from the main thread */
3861 /* Calculates the intersection between formats supported by the sink and
3862 * in_formats, and returns these, in the order of the sink's formats. */
3863 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3864 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3865 pa_format_info *f_sink, *f_in;
3870 if (!in_formats || pa_idxset_isempty(in_formats))
3873 sink_formats = pa_sink_get_formats(s);
3875 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3876 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3877 if (pa_format_info_is_compatible(f_sink, f_in))
3878 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3884 pa_idxset_free(sink_formats, (pa_free_cb_t) pa_format_info_free);