2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/introspect.h>
32 #include <pulse/format.h>
33 #include <pulse/utf8.h>
34 #include <pulse/xmalloc.h>
35 #include <pulse/timeval.h>
36 #include <pulse/util.h>
37 #include <pulse/rtclock.h>
38 #include <pulse/internal.h>
40 #include <pulsecore/i18n.h>
41 #include <pulsecore/sink-input.h>
42 #include <pulsecore/namereg.h>
43 #include <pulsecore/core-util.h>
44 #include <pulsecore/sample-util.h>
45 #include <pulsecore/core-subscribe.h>
46 #include <pulsecore/log.h>
47 #include <pulsecore/macro.h>
48 #include <pulsecore/play-memblockq.h>
49 #include <pulsecore/flist.h>
53 #define MAX_MIX_CHANNELS 32
54 #define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
55 #define ABSOLUTE_MIN_LATENCY (500)
56 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
57 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
59 PA_DEFINE_PUBLIC_CLASS(pa_sink, pa_msgobject);
61 struct pa_sink_volume_change {
65 PA_LLIST_FIELDS(pa_sink_volume_change);
68 struct sink_message_set_port {
73 static void sink_free(pa_object *s);
75 static void pa_sink_volume_change_push(pa_sink *s);
76 static void pa_sink_volume_change_flush(pa_sink *s);
77 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes);
79 pa_sink_new_data* pa_sink_new_data_init(pa_sink_new_data *data) {
83 data->proplist = pa_proplist_new();
88 void pa_sink_new_data_set_name(pa_sink_new_data *data, const char *name) {
92 data->name = pa_xstrdup(name);
95 void pa_sink_new_data_set_sample_spec(pa_sink_new_data *data, const pa_sample_spec *spec) {
98 if ((data->sample_spec_is_set = !!spec))
99 data->sample_spec = *spec;
102 void pa_sink_new_data_set_channel_map(pa_sink_new_data *data, const pa_channel_map *map) {
105 if ((data->channel_map_is_set = !!map))
106 data->channel_map = *map;
109 void pa_sink_new_data_set_alternate_sample_rate(pa_sink_new_data *data, const uint32_t alternate_sample_rate) {
112 data->alternate_sample_rate_is_set = TRUE;
113 data->alternate_sample_rate = alternate_sample_rate;
116 void pa_sink_new_data_set_volume(pa_sink_new_data *data, const pa_cvolume *volume) {
119 if ((data->volume_is_set = !!volume))
120 data->volume = *volume;
123 void pa_sink_new_data_set_muted(pa_sink_new_data *data, pa_bool_t mute) {
126 data->muted_is_set = TRUE;
127 data->muted = !!mute;
130 void pa_sink_new_data_set_port(pa_sink_new_data *data, const char *port) {
133 pa_xfree(data->active_port);
134 data->active_port = pa_xstrdup(port);
137 void pa_sink_new_data_done(pa_sink_new_data *data) {
140 pa_proplist_free(data->proplist);
143 pa_device_port_hashmap_free(data->ports);
145 pa_xfree(data->name);
146 pa_xfree(data->active_port);
150 /* Called from main context */
151 static void reset_callbacks(pa_sink *s) {
155 s->get_volume = NULL;
156 s->set_volume = NULL;
157 s->write_volume = NULL;
160 s->request_rewind = NULL;
161 s->update_requested_latency = NULL;
163 s->get_formats = NULL;
164 s->set_formats = NULL;
165 s->update_rate = NULL;
168 /* Called from main context */
169 pa_sink* pa_sink_new(
171 pa_sink_new_data *data,
172 pa_sink_flags_t flags) {
176 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
177 pa_source_new_data source_data;
183 pa_assert(data->name);
184 pa_assert_ctl_context();
186 s = pa_msgobject_new(pa_sink);
188 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
189 pa_log_debug("Failed to register name %s.", data->name);
194 pa_sink_new_data_set_name(data, name);
196 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
198 pa_namereg_unregister(core, name);
202 /* FIXME, need to free s here on failure */
204 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
205 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
207 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
209 if (!data->channel_map_is_set)
210 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
212 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
213 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
215 /* FIXME: There should probably be a general function for checking whether
216 * the sink volume is allowed to be set, like there is for sink inputs. */
217 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
219 if (!data->volume_is_set) {
220 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
221 data->save_volume = FALSE;
224 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
225 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
227 if (!data->muted_is_set)
231 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
233 pa_device_init_description(data->proplist);
234 pa_device_init_icon(data->proplist, TRUE);
235 pa_device_init_intended_roles(data->proplist);
237 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
239 pa_namereg_unregister(core, name);
243 s->parent.parent.free = sink_free;
244 s->parent.process_msg = pa_sink_process_msg;
247 s->state = PA_SINK_INIT;
250 s->suspend_cause = 0;
251 pa_sink_set_mixer_dirty(s, FALSE);
252 s->name = pa_xstrdup(name);
253 s->proplist = pa_proplist_copy(data->proplist);
254 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
255 s->module = data->module;
256 s->card = data->card;
258 s->priority = pa_device_init_priority(s->proplist);
260 s->sample_spec = data->sample_spec;
261 s->channel_map = data->channel_map;
262 s->default_sample_rate = s->sample_spec.rate;
264 if (data->alternate_sample_rate_is_set)
265 s->alternate_sample_rate = data->alternate_sample_rate;
267 s->alternate_sample_rate = s->core->alternate_sample_rate;
269 if (s->sample_spec.rate == s->alternate_sample_rate) {
270 pa_log_warn("Default and alternate sample rates are the same.");
271 s->alternate_sample_rate = 0;
274 s->inputs = pa_idxset_new(NULL, NULL);
276 s->input_to_master = NULL;
278 s->reference_volume = s->real_volume = data->volume;
279 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
280 s->base_volume = PA_VOLUME_NORM;
281 s->n_volume_steps = PA_VOLUME_NORM+1;
282 s->muted = data->muted;
283 s->refresh_volume = s->refresh_muted = FALSE;
290 /* As a minor optimization we just steal the list instead of
292 s->ports = data->ports;
295 s->active_port = NULL;
296 s->save_port = FALSE;
298 if (data->active_port && s->ports)
299 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
300 s->save_port = data->save_port;
302 if (!s->active_port && s->ports) {
306 PA_HASHMAP_FOREACH(p, s->ports, state)
307 if (!s->active_port || p->priority > s->active_port->priority)
312 s->latency_offset = s->active_port->latency_offset;
314 s->latency_offset = 0;
316 s->save_volume = data->save_volume;
317 s->save_muted = data->save_muted;
319 pa_silence_memchunk_get(
320 &core->silence_cache,
326 s->thread_info.rtpoll = NULL;
327 s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
328 s->thread_info.soft_volume = s->soft_volume;
329 s->thread_info.soft_muted = s->muted;
330 s->thread_info.state = s->state;
331 s->thread_info.rewind_nbytes = 0;
332 s->thread_info.rewind_requested = FALSE;
333 s->thread_info.max_rewind = 0;
334 s->thread_info.max_request = 0;
335 s->thread_info.requested_latency_valid = FALSE;
336 s->thread_info.requested_latency = 0;
337 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
338 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
339 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
341 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
342 s->thread_info.volume_changes_tail = NULL;
343 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
344 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
345 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
346 s->thread_info.latency_offset = s->latency_offset;
348 /* FIXME: This should probably be moved to pa_sink_put() */
349 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
352 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
354 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
355 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
358 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
359 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
363 pa_source_new_data_init(&source_data);
364 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
365 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
366 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
367 source_data.name = pa_sprintf_malloc("%s.monitor", name);
368 source_data.driver = data->driver;
369 source_data.module = data->module;
370 source_data.card = data->card;
372 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
373 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
374 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
376 s->monitor_source = pa_source_new(core, &source_data,
377 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
378 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
380 pa_source_new_data_done(&source_data);
382 if (!s->monitor_source) {
388 s->monitor_source->monitor_of = s;
390 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
391 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
392 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
397 /* Called from main context */
398 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
400 pa_bool_t suspend_change;
401 pa_sink_state_t original_state;
404 pa_assert_ctl_context();
406 if (s->state == state)
409 original_state = s->state;
412 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
413 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
416 if ((ret = s->set_state(s, state)) < 0)
420 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
423 s->set_state(s, original_state);
430 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
431 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
432 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
435 if (suspend_change) {
439 /* We're suspending or resuming, tell everyone about it */
441 PA_IDXSET_FOREACH(i, s->inputs, idx)
442 if (s->state == PA_SINK_SUSPENDED &&
443 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
444 pa_sink_input_kill(i);
446 i->suspend(i, state == PA_SINK_SUSPENDED);
448 if (s->monitor_source)
449 pa_source_sync_suspend(s->monitor_source);
455 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
461 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
462 pa_sink_flags_t flags;
465 pa_assert(!s->write_volume || cb);
469 /* Save the current flags so we can tell if they've changed */
473 /* The sink implementor is responsible for setting decibel volume support */
474 s->flags |= PA_SINK_HW_VOLUME_CTRL;
476 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
477 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
478 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
481 /* If the flags have changed after init, let any clients know via a change event */
482 if (s->state != PA_SINK_INIT && flags != s->flags)
483 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
486 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
487 pa_sink_flags_t flags;
490 pa_assert(!cb || s->set_volume);
492 s->write_volume = cb;
494 /* Save the current flags so we can tell if they've changed */
498 s->flags |= PA_SINK_DEFERRED_VOLUME;
500 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
502 /* If the flags have changed after init, let any clients know via a change event */
503 if (s->state != PA_SINK_INIT && flags != s->flags)
504 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
507 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
513 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
514 pa_sink_flags_t flags;
520 /* Save the current flags so we can tell if they've changed */
524 s->flags |= PA_SINK_HW_MUTE_CTRL;
526 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
528 /* If the flags have changed after init, let any clients know via a change event */
529 if (s->state != PA_SINK_INIT && flags != s->flags)
530 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
533 static void enable_flat_volume(pa_sink *s, pa_bool_t enable) {
534 pa_sink_flags_t flags;
538 /* Always follow the overall user preference here */
539 enable = enable && s->core->flat_volumes;
541 /* Save the current flags so we can tell if they've changed */
545 s->flags |= PA_SINK_FLAT_VOLUME;
547 s->flags &= ~PA_SINK_FLAT_VOLUME;
549 /* If the flags have changed after init, let any clients know via a change event */
550 if (s->state != PA_SINK_INIT && flags != s->flags)
551 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
554 void pa_sink_enable_decibel_volume(pa_sink *s, pa_bool_t enable) {
555 pa_sink_flags_t flags;
559 /* Save the current flags so we can tell if they've changed */
563 s->flags |= PA_SINK_DECIBEL_VOLUME;
564 enable_flat_volume(s, TRUE);
566 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
567 enable_flat_volume(s, FALSE);
570 /* If the flags have changed after init, let any clients know via a change event */
571 if (s->state != PA_SINK_INIT && flags != s->flags)
572 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
575 /* Called from main context */
576 void pa_sink_put(pa_sink* s) {
577 pa_sink_assert_ref(s);
578 pa_assert_ctl_context();
580 pa_assert(s->state == PA_SINK_INIT);
581 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || s->input_to_master);
583 /* The following fields must be initialized properly when calling _put() */
584 pa_assert(s->asyncmsgq);
585 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
587 /* Generally, flags should be initialized via pa_sink_new(). As a
588 * special exception we allow some volume related flags to be set
589 * between _new() and _put() by the callback setter functions above.
591 * Thus we implement a couple safeguards here which ensure the above
592 * setters were used (or at least the implementor made manual changes
593 * in a compatible way).
595 * Note: All of these flags set here can change over the life time
597 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
598 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
599 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
601 /* XXX: Currently decibel volume is disabled for all sinks that use volume
602 * sharing. When the master sink supports decibel volume, it would be good
603 * to have the flag also in the filter sink, but currently we don't do that
604 * so that the flags of the filter sink never change when it's moved from
605 * a master sink to another. One solution for this problem would be to
606 * remove user-visible volume altogether from filter sinks when volume
607 * sharing is used, but the current approach was easier to implement... */
608 /* We always support decibel volumes in software, otherwise we leave it to
609 * the sink implementor to set this flag as needed.
611 * Note: This flag can also change over the life time of the sink. */
612 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
613 pa_sink_enable_decibel_volume(s, TRUE);
615 /* If the sink implementor support DB volumes by itself, we should always
616 * try and enable flat volumes too */
617 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
618 enable_flat_volume(s, TRUE);
620 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
621 pa_sink *root_sink = pa_sink_get_master(s);
623 pa_assert(root_sink);
625 s->reference_volume = root_sink->reference_volume;
626 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
628 s->real_volume = root_sink->real_volume;
629 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
631 /* We assume that if the sink implementor changed the default
632 * volume he did so in real_volume, because that is the usual
633 * place where he is supposed to place his changes. */
634 s->reference_volume = s->real_volume;
636 s->thread_info.soft_volume = s->soft_volume;
637 s->thread_info.soft_muted = s->muted;
638 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
640 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
641 || (s->base_volume == PA_VOLUME_NORM
642 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
643 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
644 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
645 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
646 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
648 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
649 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
650 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
652 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
654 pa_source_put(s->monitor_source);
656 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
657 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
660 /* Called from main context */
661 void pa_sink_unlink(pa_sink* s) {
663 pa_sink_input *i, *j = NULL;
666 pa_assert_ctl_context();
668 /* Please note that pa_sink_unlink() does more than simply
669 * reversing pa_sink_put(). It also undoes the registrations
670 * already done in pa_sink_new()! */
672 /* All operations here shall be idempotent, i.e. pa_sink_unlink()
673 * may be called multiple times on the same sink without bad
676 linked = PA_SINK_IS_LINKED(s->state);
679 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
681 if (s->state != PA_SINK_UNLINKED)
682 pa_namereg_unregister(s->core, s->name);
683 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
686 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
688 while ((i = pa_idxset_first(s->inputs, NULL))) {
690 pa_sink_input_kill(i);
695 sink_set_state(s, PA_SINK_UNLINKED);
697 s->state = PA_SINK_UNLINKED;
701 if (s->monitor_source)
702 pa_source_unlink(s->monitor_source);
705 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
706 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
710 /* Called from main context */
711 static void sink_free(pa_object *o) {
712 pa_sink *s = PA_SINK(o);
716 pa_assert_ctl_context();
717 pa_assert(pa_sink_refcnt(s) == 0);
719 if (PA_SINK_IS_LINKED(s->state))
722 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
724 if (s->monitor_source) {
725 pa_source_unref(s->monitor_source);
726 s->monitor_source = NULL;
729 pa_idxset_free(s->inputs, NULL, NULL);
731 while ((i = pa_hashmap_steal_first(s->thread_info.inputs)))
732 pa_sink_input_unref(i);
734 pa_hashmap_free(s->thread_info.inputs, NULL, NULL);
736 if (s->silence.memblock)
737 pa_memblock_unref(s->silence.memblock);
743 pa_proplist_free(s->proplist);
746 pa_device_port_hashmap_free(s->ports);
751 /* Called from main context, and not while the IO thread is active, please */
752 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
753 pa_sink_assert_ref(s);
754 pa_assert_ctl_context();
758 if (s->monitor_source)
759 pa_source_set_asyncmsgq(s->monitor_source, q);
762 /* Called from main context, and not while the IO thread is active, please */
763 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
764 pa_sink_assert_ref(s);
765 pa_assert_ctl_context();
770 /* For now, allow only a minimal set of flags to be changed. */
771 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
773 s->flags = (s->flags & ~mask) | (value & mask);
775 pa_source_update_flags(s->monitor_source,
776 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
777 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
778 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
779 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SINK_DYNAMIC_LATENCY : 0));
782 /* Called from IO context, or before _put() from main context */
783 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
784 pa_sink_assert_ref(s);
785 pa_sink_assert_io_context(s);
787 s->thread_info.rtpoll = p;
789 if (s->monitor_source)
790 pa_source_set_rtpoll(s->monitor_source, p);
793 /* Called from main context */
794 int pa_sink_update_status(pa_sink*s) {
795 pa_sink_assert_ref(s);
796 pa_assert_ctl_context();
797 pa_assert(PA_SINK_IS_LINKED(s->state));
799 if (s->state == PA_SINK_SUSPENDED)
802 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
805 /* Called from any context - must be threadsafe */
806 void pa_sink_set_mixer_dirty(pa_sink *s, pa_bool_t is_dirty)
808 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
811 /* Called from main context */
812 int pa_sink_suspend(pa_sink *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
813 pa_sink_assert_ref(s);
814 pa_assert_ctl_context();
815 pa_assert(PA_SINK_IS_LINKED(s->state));
816 pa_assert(cause != 0);
819 s->suspend_cause |= cause;
820 s->monitor_source->suspend_cause |= cause;
822 s->suspend_cause &= ~cause;
823 s->monitor_source->suspend_cause &= ~cause;
826 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
827 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
828 it'll be handled just fine. */
829 pa_sink_set_mixer_dirty(s, FALSE);
830 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
831 if (s->active_port && s->set_port) {
832 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
833 struct sink_message_set_port msg = { .port = s->active_port, .ret = 0 };
834 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
837 s->set_port(s, s->active_port);
847 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
850 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
852 if (s->suspend_cause)
853 return sink_set_state(s, PA_SINK_SUSPENDED);
855 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
858 /* Called from main context */
859 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
860 pa_sink_input *i, *n;
863 pa_sink_assert_ref(s);
864 pa_assert_ctl_context();
865 pa_assert(PA_SINK_IS_LINKED(s->state));
870 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
871 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
873 pa_sink_input_ref(i);
875 if (pa_sink_input_start_move(i) >= 0)
878 pa_sink_input_unref(i);
884 /* Called from main context */
885 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, pa_bool_t save) {
888 pa_sink_assert_ref(s);
889 pa_assert_ctl_context();
890 pa_assert(PA_SINK_IS_LINKED(s->state));
893 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
894 if (pa_sink_input_finish_move(i, s, save) < 0)
895 pa_sink_input_fail_move(i);
897 pa_sink_input_unref(i);
900 pa_queue_free(q, NULL);
903 /* Called from main context */
904 void pa_sink_move_all_fail(pa_queue *q) {
907 pa_assert_ctl_context();
910 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
911 pa_sink_input_fail_move(i);
912 pa_sink_input_unref(i);
915 pa_queue_free(q, NULL);
918 /* Called from IO thread context */
919 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
923 pa_sink_assert_ref(s);
924 pa_sink_assert_io_context(s);
925 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
927 /* If nobody requested this and this is actually no real rewind
928 * then we can short cut this. Please note that this means that
929 * not all rewind requests triggered upstream will always be
930 * translated in actual requests! */
931 if (!s->thread_info.rewind_requested && nbytes <= 0)
934 s->thread_info.rewind_nbytes = 0;
935 s->thread_info.rewind_requested = FALSE;
937 if (s->thread_info.state == PA_SINK_SUSPENDED)
941 pa_log_debug("Processing rewind...");
942 if (s->flags & PA_SINK_DEFERRED_VOLUME)
943 pa_sink_volume_change_rewind(s, nbytes);
946 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
947 pa_sink_input_assert_ref(i);
948 pa_sink_input_process_rewind(i, nbytes);
952 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
953 pa_source_process_rewind(s->monitor_source, nbytes);
957 /* Called from IO thread context */
958 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
962 size_t mixlength = *length;
964 pa_sink_assert_ref(s);
965 pa_sink_assert_io_context(s);
968 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
969 pa_sink_input_assert_ref(i);
971 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
973 if (mixlength == 0 || info->chunk.length < mixlength)
974 mixlength = info->chunk.length;
976 if (pa_memblock_is_silence(info->chunk.memblock)) {
977 pa_memblock_unref(info->chunk.memblock);
981 info->userdata = pa_sink_input_ref(i);
983 pa_assert(info->chunk.memblock);
984 pa_assert(info->chunk.length > 0);
997 /* Called from IO thread context */
998 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1002 unsigned n_unreffed = 0;
1004 pa_sink_assert_ref(s);
1005 pa_sink_assert_io_context(s);
1007 pa_assert(result->memblock);
1008 pa_assert(result->length > 0);
1010 /* We optimize for the case where the order of the inputs has not changed */
1012 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1014 pa_mix_info* m = NULL;
1016 pa_sink_input_assert_ref(i);
1018 /* Let's try to find the matching entry info the pa_mix_info array */
1019 for (j = 0; j < n; j ++) {
1021 if (info[p].userdata == i) {
1031 /* Drop read data */
1032 pa_sink_input_drop(i, result->length);
1034 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1036 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1037 void *ostate = NULL;
1038 pa_source_output *o;
1041 if (m && m->chunk.memblock) {
1043 pa_memblock_ref(c.memblock);
1044 pa_assert(result->length <= c.length);
1045 c.length = result->length;
1047 pa_memchunk_make_writable(&c, 0);
1048 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1051 pa_memblock_ref(c.memblock);
1052 pa_assert(result->length <= c.length);
1053 c.length = result->length;
1056 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1057 pa_source_output_assert_ref(o);
1058 pa_assert(o->direct_on_input == i);
1059 pa_source_post_direct(s->monitor_source, o, &c);
1062 pa_memblock_unref(c.memblock);
1067 if (m->chunk.memblock)
1068 pa_memblock_unref(m->chunk.memblock);
1069 pa_memchunk_reset(&m->chunk);
1071 pa_sink_input_unref(m->userdata);
1078 /* Now drop references to entries that are included in the
1079 * pa_mix_info array but don't exist anymore */
1081 if (n_unreffed < n) {
1082 for (; n > 0; info++, n--) {
1084 pa_sink_input_unref(info->userdata);
1085 if (info->chunk.memblock)
1086 pa_memblock_unref(info->chunk.memblock);
1090 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1091 pa_source_post(s->monitor_source, result);
1094 /* Called from IO thread context */
1095 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1096 pa_mix_info info[MAX_MIX_CHANNELS];
1098 size_t block_size_max;
1100 pa_sink_assert_ref(s);
1101 pa_sink_assert_io_context(s);
1102 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1103 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1106 pa_assert(!s->thread_info.rewind_requested);
1107 pa_assert(s->thread_info.rewind_nbytes == 0);
1109 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1110 result->memblock = pa_memblock_ref(s->silence.memblock);
1111 result->index = s->silence.index;
1112 result->length = PA_MIN(s->silence.length, length);
1119 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1121 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1122 if (length > block_size_max)
1123 length = pa_frame_align(block_size_max, &s->sample_spec);
1125 pa_assert(length > 0);
1127 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1131 *result = s->silence;
1132 pa_memblock_ref(result->memblock);
1134 if (result->length > length)
1135 result->length = length;
1137 } else if (n == 1) {
1140 *result = info[0].chunk;
1141 pa_memblock_ref(result->memblock);
1143 if (result->length > length)
1144 result->length = length;
1146 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1148 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1149 pa_memblock_unref(result->memblock);
1150 pa_silence_memchunk_get(&s->core->silence_cache,
1155 } else if (!pa_cvolume_is_norm(&volume)) {
1156 pa_memchunk_make_writable(result, 0);
1157 pa_volume_memchunk(result, &s->sample_spec, &volume);
1161 result->memblock = pa_memblock_new(s->core->mempool, length);
1163 ptr = pa_memblock_acquire(result->memblock);
1164 result->length = pa_mix(info, n,
1167 &s->thread_info.soft_volume,
1168 s->thread_info.soft_muted);
1169 pa_memblock_release(result->memblock);
1174 inputs_drop(s, info, n, result);
1179 /* Called from IO thread context */
1180 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1181 pa_mix_info info[MAX_MIX_CHANNELS];
1183 size_t length, block_size_max;
1185 pa_sink_assert_ref(s);
1186 pa_sink_assert_io_context(s);
1187 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1189 pa_assert(target->memblock);
1190 pa_assert(target->length > 0);
1191 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1193 pa_assert(!s->thread_info.rewind_requested);
1194 pa_assert(s->thread_info.rewind_nbytes == 0);
1196 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1197 pa_silence_memchunk(target, &s->sample_spec);
1203 length = target->length;
1204 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1205 if (length > block_size_max)
1206 length = pa_frame_align(block_size_max, &s->sample_spec);
1208 pa_assert(length > 0);
1210 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1213 if (target->length > length)
1214 target->length = length;
1216 pa_silence_memchunk(target, &s->sample_spec);
1217 } else if (n == 1) {
1220 if (target->length > length)
1221 target->length = length;
1223 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1225 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1226 pa_silence_memchunk(target, &s->sample_spec);
1230 vchunk = info[0].chunk;
1231 pa_memblock_ref(vchunk.memblock);
1233 if (vchunk.length > length)
1234 vchunk.length = length;
1236 if (!pa_cvolume_is_norm(&volume)) {
1237 pa_memchunk_make_writable(&vchunk, 0);
1238 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1241 pa_memchunk_memcpy(target, &vchunk);
1242 pa_memblock_unref(vchunk.memblock);
1248 ptr = pa_memblock_acquire(target->memblock);
1250 target->length = pa_mix(info, n,
1251 (uint8_t*) ptr + target->index, length,
1253 &s->thread_info.soft_volume,
1254 s->thread_info.soft_muted);
1256 pa_memblock_release(target->memblock);
1259 inputs_drop(s, info, n, target);
1264 /* Called from IO thread context */
1265 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1269 pa_sink_assert_ref(s);
1270 pa_sink_assert_io_context(s);
1271 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1273 pa_assert(target->memblock);
1274 pa_assert(target->length > 0);
1275 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1277 pa_assert(!s->thread_info.rewind_requested);
1278 pa_assert(s->thread_info.rewind_nbytes == 0);
1280 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1281 pa_silence_memchunk(target, &s->sample_spec);
1294 pa_sink_render_into(s, &chunk);
1303 /* Called from IO thread context */
1304 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1305 pa_sink_assert_ref(s);
1306 pa_sink_assert_io_context(s);
1307 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1308 pa_assert(length > 0);
1309 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1312 pa_assert(!s->thread_info.rewind_requested);
1313 pa_assert(s->thread_info.rewind_nbytes == 0);
1317 pa_sink_render(s, length, result);
1319 if (result->length < length) {
1322 pa_memchunk_make_writable(result, length);
1324 chunk.memblock = result->memblock;
1325 chunk.index = result->index + result->length;
1326 chunk.length = length - result->length;
1328 pa_sink_render_into_full(s, &chunk);
1330 result->length = length;
1336 /* Called from main thread */
1337 pa_bool_t pa_sink_update_rate(pa_sink *s, uint32_t rate, pa_bool_t passthrough)
1339 if (s->update_rate) {
1340 uint32_t desired_rate = rate;
1341 uint32_t default_rate = s->default_sample_rate;
1342 uint32_t alternate_rate = s->alternate_sample_rate;
1345 pa_bool_t use_alternate = FALSE;
1347 if (PA_UNLIKELY(default_rate == alternate_rate)) {
1348 pa_log_warn("Default and alternate sample rates are the same.");
1352 if (PA_SINK_IS_RUNNING(s->state)) {
1353 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u Hz",
1354 s->sample_spec.rate);
1358 if (s->monitor_source) {
1359 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == TRUE) {
1360 pa_log_info("Cannot update rate, monitor source is RUNNING");
1365 if (PA_UNLIKELY (desired_rate < 8000 ||
1366 desired_rate > PA_RATE_MAX))
1370 pa_assert(default_rate % 4000 || default_rate % 11025);
1371 pa_assert(alternate_rate % 4000 || alternate_rate % 11025);
1373 if (default_rate % 4000) {
1374 /* default is a 11025 multiple */
1375 if ((alternate_rate % 4000 == 0) && (desired_rate % 4000 == 0))
1378 /* default is 4000 multiple */
1379 if ((alternate_rate % 11025 == 0) && (desired_rate % 11025 == 0))
1384 desired_rate = alternate_rate;
1386 desired_rate = default_rate;
1388 desired_rate = rate; /* use stream sampling rate, discard default/alternate settings */
1391 if (!passthrough && pa_sink_used_by(s) > 0)
1394 pa_sink_suspend(s, TRUE, PA_SUSPEND_IDLE); /* needed before rate update, will be resumed automatically */
1396 if (s->update_rate(s, desired_rate) == TRUE) {
1397 /* update monitor source as well */
1398 if (s->monitor_source && !passthrough)
1399 pa_source_update_rate(s->monitor_source, desired_rate, FALSE);
1400 pa_log_info("Changed sampling rate successfully");
1402 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1403 if (i->state == PA_SINK_INPUT_CORKED)
1404 pa_sink_input_update_rate(i);
1413 /* Called from main thread */
1414 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1417 pa_sink_assert_ref(s);
1418 pa_assert_ctl_context();
1419 pa_assert(PA_SINK_IS_LINKED(s->state));
1421 /* The returned value is supposed to be in the time domain of the sound card! */
1423 if (s->state == PA_SINK_SUSPENDED)
1426 if (!(s->flags & PA_SINK_LATENCY))
1429 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1431 usec += s->latency_offset;
1436 /* Called from IO thread */
1437 pa_usec_t pa_sink_get_latency_within_thread(pa_sink *s) {
1441 pa_sink_assert_ref(s);
1442 pa_sink_assert_io_context(s);
1443 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1445 /* The returned value is supposed to be in the time domain of the sound card! */
1447 if (s->thread_info.state == PA_SINK_SUSPENDED)
1450 if (!(s->flags & PA_SINK_LATENCY))
1453 o = PA_MSGOBJECT(s);
1455 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1457 if (o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1460 usec += s->thread_info.latency_offset;
1465 /* Called from the main thread (and also from the IO thread while the main
1466 * thread is waiting).
1468 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1469 * set. Instead, flat volume mode is detected by checking whether the root sink
1470 * has the flag set. */
1471 pa_bool_t pa_sink_flat_volume_enabled(pa_sink *s) {
1472 pa_sink_assert_ref(s);
1474 s = pa_sink_get_master(s);
1477 return (s->flags & PA_SINK_FLAT_VOLUME);
1482 /* Called from the main thread (and also from the IO thread while the main
1483 * thread is waiting). */
1484 pa_sink *pa_sink_get_master(pa_sink *s) {
1485 pa_sink_assert_ref(s);
1487 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1488 if (PA_UNLIKELY(!s->input_to_master))
1491 s = s->input_to_master->sink;
1497 /* Called from main context */
1498 pa_bool_t pa_sink_is_passthrough(pa_sink *s) {
1499 pa_sink_input *alt_i;
1502 pa_sink_assert_ref(s);
1504 /* one and only one PASSTHROUGH input can possibly be connected */
1505 if (pa_idxset_size(s->inputs) == 1) {
1506 alt_i = pa_idxset_first(s->inputs, &idx);
1508 if (pa_sink_input_is_passthrough(alt_i))
1515 /* Called from main context */
1516 void pa_sink_enter_passthrough(pa_sink *s) {
1519 /* disable the monitor in passthrough mode */
1520 if (s->monitor_source)
1521 pa_source_suspend(s->monitor_source, TRUE, PA_SUSPEND_PASSTHROUGH);
1523 /* set the volume to NORM */
1524 s->saved_volume = *pa_sink_get_volume(s, TRUE);
1525 s->saved_save_volume = s->save_volume;
1527 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1528 pa_sink_set_volume(s, &volume, TRUE, FALSE);
1531 /* Called from main context */
1532 void pa_sink_leave_passthrough(pa_sink *s) {
1533 /* Unsuspend monitor */
1534 if (s->monitor_source)
1535 pa_source_suspend(s->monitor_source, FALSE, PA_SUSPEND_PASSTHROUGH);
1537 /* Restore sink volume to what it was before we entered passthrough mode */
1538 pa_sink_set_volume(s, &s->saved_volume, TRUE, s->saved_save_volume);
1540 pa_cvolume_init(&s->saved_volume);
1541 s->saved_save_volume = FALSE;
1544 /* Called from main context. */
1545 static void compute_reference_ratio(pa_sink_input *i) {
1547 pa_cvolume remapped;
1550 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1553 * Calculates the reference ratio from the sink's reference
1554 * volume. This basically calculates:
1556 * i->reference_ratio = i->volume / i->sink->reference_volume
1559 remapped = i->sink->reference_volume;
1560 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1562 i->reference_ratio.channels = i->sample_spec.channels;
1564 for (c = 0; c < i->sample_spec.channels; c++) {
1566 /* We don't update when the sink volume is 0 anyway */
1567 if (remapped.values[c] <= PA_VOLUME_MUTED)
1570 /* Don't update the reference ratio unless necessary */
1571 if (pa_sw_volume_multiply(
1572 i->reference_ratio.values[c],
1573 remapped.values[c]) == i->volume.values[c])
1576 i->reference_ratio.values[c] = pa_sw_volume_divide(
1577 i->volume.values[c],
1578 remapped.values[c]);
1582 /* Called from main context. Only called for the root sink in volume sharing
1583 * cases, except for internal recursive calls. */
1584 static void compute_reference_ratios(pa_sink *s) {
1588 pa_sink_assert_ref(s);
1589 pa_assert_ctl_context();
1590 pa_assert(PA_SINK_IS_LINKED(s->state));
1591 pa_assert(pa_sink_flat_volume_enabled(s));
1593 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1594 compute_reference_ratio(i);
1596 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1597 compute_reference_ratios(i->origin_sink);
1601 /* Called from main context. Only called for the root sink in volume sharing
1602 * cases, except for internal recursive calls. */
1603 static void compute_real_ratios(pa_sink *s) {
1607 pa_sink_assert_ref(s);
1608 pa_assert_ctl_context();
1609 pa_assert(PA_SINK_IS_LINKED(s->state));
1610 pa_assert(pa_sink_flat_volume_enabled(s));
1612 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1614 pa_cvolume remapped;
1616 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1617 /* The origin sink uses volume sharing, so this input's real ratio
1618 * is handled as a special case - the real ratio must be 0 dB, and
1619 * as a result i->soft_volume must equal i->volume_factor. */
1620 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1621 i->soft_volume = i->volume_factor;
1623 compute_real_ratios(i->origin_sink);
1629 * This basically calculates:
1631 * i->real_ratio := i->volume / s->real_volume
1632 * i->soft_volume := i->real_ratio * i->volume_factor
1635 remapped = s->real_volume;
1636 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1638 i->real_ratio.channels = i->sample_spec.channels;
1639 i->soft_volume.channels = i->sample_spec.channels;
1641 for (c = 0; c < i->sample_spec.channels; c++) {
1643 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1644 /* We leave i->real_ratio untouched */
1645 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1649 /* Don't lose accuracy unless necessary */
1650 if (pa_sw_volume_multiply(
1651 i->real_ratio.values[c],
1652 remapped.values[c]) != i->volume.values[c])
1654 i->real_ratio.values[c] = pa_sw_volume_divide(
1655 i->volume.values[c],
1656 remapped.values[c]);
1658 i->soft_volume.values[c] = pa_sw_volume_multiply(
1659 i->real_ratio.values[c],
1660 i->volume_factor.values[c]);
1663 /* We don't copy the soft_volume to the thread_info data
1664 * here. That must be done by the caller */
1668 static pa_cvolume *cvolume_remap_minimal_impact(
1670 const pa_cvolume *template,
1671 const pa_channel_map *from,
1672 const pa_channel_map *to) {
1677 pa_assert(template);
1680 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1681 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1683 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1684 * mapping from sink input to sink volumes:
1686 * If template is a possible remapping from v it is used instead
1687 * of remapping anew.
1689 * If the channel maps don't match we set an all-channel volume on
1690 * the sink to ensure that changing a volume on one stream has no
1691 * effect that cannot be compensated for in another stream that
1692 * does not have the same channel map as the sink. */
1694 if (pa_channel_map_equal(from, to))
1698 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1703 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1707 /* Called from main thread. Only called for the root sink in volume sharing
1708 * cases, except for internal recursive calls. */
1709 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1713 pa_sink_assert_ref(s);
1714 pa_assert(max_volume);
1715 pa_assert(channel_map);
1716 pa_assert(pa_sink_flat_volume_enabled(s));
1718 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1719 pa_cvolume remapped;
1721 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1722 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1724 /* Ignore this input. The origin sink uses volume sharing, so this
1725 * input's volume will be set to be equal to the root sink's real
1726 * volume. Obviously this input's current volume must not then
1727 * affect what the root sink's real volume will be. */
1731 remapped = i->volume;
1732 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1733 pa_cvolume_merge(max_volume, max_volume, &remapped);
1737 /* Called from main thread. Only called for the root sink in volume sharing
1738 * cases, except for internal recursive calls. */
1739 static pa_bool_t has_inputs(pa_sink *s) {
1743 pa_sink_assert_ref(s);
1745 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1746 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1753 /* Called from main thread. Only called for the root sink in volume sharing
1754 * cases, except for internal recursive calls. */
1755 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1759 pa_sink_assert_ref(s);
1760 pa_assert(new_volume);
1761 pa_assert(channel_map);
1763 s->real_volume = *new_volume;
1764 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1766 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1767 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1768 if (pa_sink_flat_volume_enabled(s)) {
1769 pa_cvolume old_volume = i->volume;
1771 /* Follow the root sink's real volume. */
1772 i->volume = *new_volume;
1773 pa_cvolume_remap(&i->volume, channel_map, &i->channel_map);
1774 compute_reference_ratio(i);
1776 /* The volume changed, let's tell people so */
1777 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1778 if (i->volume_changed)
1779 i->volume_changed(i);
1781 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1785 update_real_volume(i->origin_sink, new_volume, channel_map);
1790 /* Called from main thread. Only called for the root sink in shared volume
1792 static void compute_real_volume(pa_sink *s) {
1793 pa_sink_assert_ref(s);
1794 pa_assert_ctl_context();
1795 pa_assert(PA_SINK_IS_LINKED(s->state));
1796 pa_assert(pa_sink_flat_volume_enabled(s));
1797 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1799 /* This determines the maximum volume of all streams and sets
1800 * s->real_volume accordingly. */
1802 if (!has_inputs(s)) {
1803 /* In the special case that we have no sink inputs we leave the
1804 * volume unmodified. */
1805 update_real_volume(s, &s->reference_volume, &s->channel_map);
1809 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1811 /* First let's determine the new maximum volume of all inputs
1812 * connected to this sink */
1813 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1814 update_real_volume(s, &s->real_volume, &s->channel_map);
1816 /* Then, let's update the real ratios/soft volumes of all inputs
1817 * connected to this sink */
1818 compute_real_ratios(s);
1821 /* Called from main thread. Only called for the root sink in shared volume
1822 * cases, except for internal recursive calls. */
1823 static void propagate_reference_volume(pa_sink *s) {
1827 pa_sink_assert_ref(s);
1828 pa_assert_ctl_context();
1829 pa_assert(PA_SINK_IS_LINKED(s->state));
1830 pa_assert(pa_sink_flat_volume_enabled(s));
1832 /* This is called whenever the sink volume changes that is not
1833 * caused by a sink input volume change. We need to fix up the
1834 * sink input volumes accordingly */
1836 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1837 pa_cvolume old_volume;
1839 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1840 propagate_reference_volume(i->origin_sink);
1842 /* Since the origin sink uses volume sharing, this input's volume
1843 * needs to be updated to match the root sink's real volume, but
1844 * that will be done later in update_shared_real_volume(). */
1848 old_volume = i->volume;
1850 /* This basically calculates:
1852 * i->volume := s->reference_volume * i->reference_ratio */
1854 i->volume = s->reference_volume;
1855 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
1856 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
1858 /* The volume changed, let's tell people so */
1859 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1861 if (i->volume_changed)
1862 i->volume_changed(i);
1864 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1869 /* Called from main thread. Only called for the root sink in volume sharing
1870 * cases, except for internal recursive calls. The return value indicates
1871 * whether any reference volume actually changed. */
1872 static pa_bool_t update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1874 pa_bool_t reference_volume_changed;
1878 pa_sink_assert_ref(s);
1879 pa_assert(PA_SINK_IS_LINKED(s->state));
1881 pa_assert(channel_map);
1882 pa_assert(pa_cvolume_valid(v));
1885 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1887 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1888 s->reference_volume = volume;
1890 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1892 if (reference_volume_changed)
1893 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1894 else if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1895 /* If the root sink's volume doesn't change, then there can't be any
1896 * changes in the other sinks in the sink tree either.
1898 * It's probably theoretically possible that even if the root sink's
1899 * volume changes slightly, some filter sink doesn't change its volume
1900 * due to rounding errors. If that happens, we still want to propagate
1901 * the changed root sink volume to the sinks connected to the
1902 * intermediate sink that didn't change its volume. This theoretical
1903 * possibility is the reason why we have that !(s->flags &
1904 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1905 * notice even if we returned here FALSE always if
1906 * reference_volume_changed is FALSE. */
1909 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1910 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1911 update_reference_volume(i->origin_sink, v, channel_map, FALSE);
1917 /* Called from main thread */
1918 void pa_sink_set_volume(
1920 const pa_cvolume *volume,
1924 pa_cvolume new_reference_volume;
1927 pa_sink_assert_ref(s);
1928 pa_assert_ctl_context();
1929 pa_assert(PA_SINK_IS_LINKED(s->state));
1930 pa_assert(!volume || pa_cvolume_valid(volume));
1931 pa_assert(volume || pa_sink_flat_volume_enabled(s));
1932 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1934 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
1935 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1936 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1937 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
1941 /* In case of volume sharing, the volume is set for the root sink first,
1942 * from which it's then propagated to the sharing sinks. */
1943 root_sink = pa_sink_get_master(s);
1945 if (PA_UNLIKELY(!root_sink))
1948 /* As a special exception we accept mono volumes on all sinks --
1949 * even on those with more complex channel maps */
1952 if (pa_cvolume_compatible(volume, &s->sample_spec))
1953 new_reference_volume = *volume;
1955 new_reference_volume = s->reference_volume;
1956 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1959 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
1961 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
1962 if (pa_sink_flat_volume_enabled(root_sink)) {
1963 /* OK, propagate this volume change back to the inputs */
1964 propagate_reference_volume(root_sink);
1966 /* And now recalculate the real volume */
1967 compute_real_volume(root_sink);
1969 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
1973 /* If volume is NULL we synchronize the sink's real and
1974 * reference volumes with the stream volumes. */
1976 pa_assert(pa_sink_flat_volume_enabled(root_sink));
1978 /* Ok, let's determine the new real volume */
1979 compute_real_volume(root_sink);
1981 /* Let's 'push' the reference volume if necessary */
1982 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
1983 /* If the sink and it's root don't have the same number of channels, we need to remap */
1984 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
1985 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
1986 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
1988 /* Now that the reference volume is updated, we can update the streams'
1989 * reference ratios. */
1990 compute_reference_ratios(root_sink);
1993 if (root_sink->set_volume) {
1994 /* If we have a function set_volume(), then we do not apply a
1995 * soft volume by default. However, set_volume() is free to
1996 * apply one to root_sink->soft_volume */
1998 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
1999 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
2000 root_sink->set_volume(root_sink);
2003 /* If we have no function set_volume(), then the soft volume
2004 * becomes the real volume */
2005 root_sink->soft_volume = root_sink->real_volume;
2007 /* This tells the sink that soft volume and/or real volume changed */
2009 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
2012 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2013 * Only to be called by sink implementor */
2014 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2016 pa_sink_assert_ref(s);
2017 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2019 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2020 pa_sink_assert_io_context(s);
2022 pa_assert_ctl_context();
2025 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2027 s->soft_volume = *volume;
2029 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2030 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2032 s->thread_info.soft_volume = s->soft_volume;
2035 /* Called from the main thread. Only called for the root sink in volume sharing
2036 * cases, except for internal recursive calls. */
2037 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2041 pa_sink_assert_ref(s);
2042 pa_assert(old_real_volume);
2043 pa_assert_ctl_context();
2044 pa_assert(PA_SINK_IS_LINKED(s->state));
2046 /* This is called when the hardware's real volume changes due to
2047 * some external event. We copy the real volume into our
2048 * reference volume and then rebuild the stream volumes based on
2049 * i->real_ratio which should stay fixed. */
2051 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2052 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2055 /* 1. Make the real volume the reference volume */
2056 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
2059 if (pa_sink_flat_volume_enabled(s)) {
2061 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2062 pa_cvolume old_volume = i->volume;
2064 /* 2. Since the sink's reference and real volumes are equal
2065 * now our ratios should be too. */
2066 i->reference_ratio = i->real_ratio;
2068 /* 3. Recalculate the new stream reference volume based on the
2069 * reference ratio and the sink's reference volume.
2071 * This basically calculates:
2073 * i->volume = s->reference_volume * i->reference_ratio
2075 * This is identical to propagate_reference_volume() */
2076 i->volume = s->reference_volume;
2077 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
2078 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
2080 /* Notify if something changed */
2081 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
2083 if (i->volume_changed)
2084 i->volume_changed(i);
2086 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
2089 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2090 propagate_real_volume(i->origin_sink, old_real_volume);
2094 /* Something got changed in the hardware. It probably makes sense
2095 * to save changed hw settings given that hw volume changes not
2096 * triggered by PA are almost certainly done by the user. */
2097 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2098 s->save_volume = TRUE;
2101 /* Called from io thread */
2102 void pa_sink_update_volume_and_mute(pa_sink *s) {
2104 pa_sink_assert_io_context(s);
2106 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2109 /* Called from main thread */
2110 const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_bool_t force_refresh) {
2111 pa_sink_assert_ref(s);
2112 pa_assert_ctl_context();
2113 pa_assert(PA_SINK_IS_LINKED(s->state));
2115 if (s->refresh_volume || force_refresh) {
2116 struct pa_cvolume old_real_volume;
2118 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2120 old_real_volume = s->real_volume;
2122 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2125 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2127 update_real_volume(s, &s->real_volume, &s->channel_map);
2128 propagate_real_volume(s, &old_real_volume);
2131 return &s->reference_volume;
2134 /* Called from main thread. In volume sharing cases, only the root sink may
2136 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2137 pa_cvolume old_real_volume;
2139 pa_sink_assert_ref(s);
2140 pa_assert_ctl_context();
2141 pa_assert(PA_SINK_IS_LINKED(s->state));
2142 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2144 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2146 old_real_volume = s->real_volume;
2147 update_real_volume(s, new_real_volume, &s->channel_map);
2148 propagate_real_volume(s, &old_real_volume);
2151 /* Called from main thread */
2152 void pa_sink_set_mute(pa_sink *s, pa_bool_t mute, pa_bool_t save) {
2153 pa_bool_t old_muted;
2155 pa_sink_assert_ref(s);
2156 pa_assert_ctl_context();
2157 pa_assert(PA_SINK_IS_LINKED(s->state));
2159 old_muted = s->muted;
2161 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
2163 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute)
2166 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2168 if (old_muted != s->muted)
2169 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2172 /* Called from main thread */
2173 pa_bool_t pa_sink_get_mute(pa_sink *s, pa_bool_t force_refresh) {
2175 pa_sink_assert_ref(s);
2176 pa_assert_ctl_context();
2177 pa_assert(PA_SINK_IS_LINKED(s->state));
2179 if (s->refresh_muted || force_refresh) {
2180 pa_bool_t old_muted = s->muted;
2182 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_mute)
2185 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
2187 if (old_muted != s->muted) {
2188 s->save_muted = TRUE;
2190 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2192 /* Make sure the soft mute status stays in sync */
2193 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2200 /* Called from main thread */
2201 void pa_sink_mute_changed(pa_sink *s, pa_bool_t new_muted) {
2202 pa_sink_assert_ref(s);
2203 pa_assert_ctl_context();
2204 pa_assert(PA_SINK_IS_LINKED(s->state));
2206 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2208 if (s->muted == new_muted)
2211 s->muted = new_muted;
2212 s->save_muted = TRUE;
2214 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2217 /* Called from main thread */
2218 pa_bool_t pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2219 pa_sink_assert_ref(s);
2220 pa_assert_ctl_context();
2223 pa_proplist_update(s->proplist, mode, p);
2225 if (PA_SINK_IS_LINKED(s->state)) {
2226 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2227 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2233 /* Called from main thread */
2234 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2235 void pa_sink_set_description(pa_sink *s, const char *description) {
2237 pa_sink_assert_ref(s);
2238 pa_assert_ctl_context();
2240 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2243 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2245 if (old && description && pa_streq(old, description))
2249 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2251 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2253 if (s->monitor_source) {
2256 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2257 pa_source_set_description(s->monitor_source, n);
2261 if (PA_SINK_IS_LINKED(s->state)) {
2262 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2263 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2267 /* Called from main thread */
2268 unsigned pa_sink_linked_by(pa_sink *s) {
2271 pa_sink_assert_ref(s);
2272 pa_assert_ctl_context();
2273 pa_assert(PA_SINK_IS_LINKED(s->state));
2275 ret = pa_idxset_size(s->inputs);
2277 /* We add in the number of streams connected to us here. Please
2278 * note the asymmetry to pa_sink_used_by()! */
2280 if (s->monitor_source)
2281 ret += pa_source_linked_by(s->monitor_source);
2286 /* Called from main thread */
2287 unsigned pa_sink_used_by(pa_sink *s) {
2290 pa_sink_assert_ref(s);
2291 pa_assert_ctl_context();
2292 pa_assert(PA_SINK_IS_LINKED(s->state));
2294 ret = pa_idxset_size(s->inputs);
2295 pa_assert(ret >= s->n_corked);
2297 /* Streams connected to our monitor source do not matter for
2298 * pa_sink_used_by()!.*/
2300 return ret - s->n_corked;
2303 /* Called from main thread */
2304 unsigned pa_sink_check_suspend(pa_sink *s) {
2309 pa_sink_assert_ref(s);
2310 pa_assert_ctl_context();
2312 if (!PA_SINK_IS_LINKED(s->state))
2317 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2318 pa_sink_input_state_t st;
2320 st = pa_sink_input_get_state(i);
2322 /* We do not assert here. It is perfectly valid for a sink input to
2323 * be in the INIT state (i.e. created, marked done but not yet put)
2324 * and we should not care if it's unlinked as it won't contribute
2325 * towards our busy status.
2327 if (!PA_SINK_INPUT_IS_LINKED(st))
2330 if (st == PA_SINK_INPUT_CORKED)
2333 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2339 if (s->monitor_source)
2340 ret += pa_source_check_suspend(s->monitor_source);
2345 /* Called from the IO thread */
2346 static void sync_input_volumes_within_thread(pa_sink *s) {
2350 pa_sink_assert_ref(s);
2351 pa_sink_assert_io_context(s);
2353 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2354 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2357 i->thread_info.soft_volume = i->soft_volume;
2358 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
2362 /* Called from the IO thread. Only called for the root sink in volume sharing
2363 * cases, except for internal recursive calls. */
2364 static void set_shared_volume_within_thread(pa_sink *s) {
2365 pa_sink_input *i = NULL;
2368 pa_sink_assert_ref(s);
2370 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2372 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2373 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2374 set_shared_volume_within_thread(i->origin_sink);
2378 /* Called from IO thread, except when it is not */
2379 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2380 pa_sink *s = PA_SINK(o);
2381 pa_sink_assert_ref(s);
2383 switch ((pa_sink_message_t) code) {
2385 case PA_SINK_MESSAGE_ADD_INPUT: {
2386 pa_sink_input *i = PA_SINK_INPUT(userdata);
2388 /* If you change anything here, make sure to change the
2389 * sink input handling a few lines down at
2390 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2392 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2394 /* Since the caller sleeps in pa_sink_input_put(), we can
2395 * safely access data outside of thread_info even though
2398 if ((i->thread_info.sync_prev = i->sync_prev)) {
2399 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2400 pa_assert(i->sync_prev->sync_next == i);
2401 i->thread_info.sync_prev->thread_info.sync_next = i;
2404 if ((i->thread_info.sync_next = i->sync_next)) {
2405 pa_assert(i->sink == i->thread_info.sync_next->sink);
2406 pa_assert(i->sync_next->sync_prev == i);
2407 i->thread_info.sync_next->thread_info.sync_prev = i;
2410 pa_assert(!i->thread_info.attached);
2411 i->thread_info.attached = TRUE;
2416 pa_sink_input_set_state_within_thread(i, i->state);
2418 /* The requested latency of the sink input needs to be
2419 * fixed up and then configured on the sink */
2421 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2422 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2424 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2425 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2427 /* We don't rewind here automatically. This is left to the
2428 * sink input implementor because some sink inputs need a
2429 * slow start, i.e. need some time to buffer client
2430 * samples before beginning streaming. */
2432 /* FIXME: Actually rewinding should be requested before
2433 * updating the sink requested latency, because updating
2434 * the requested latency updates also max_rewind of the
2435 * sink. Now consider this: a sink has a 10 s buffer and
2436 * nobody has requested anything less. Then a new stream
2437 * appears while the sink buffer is full. The new stream
2438 * requests e.g. 100 ms latency. That request is forwarded
2439 * to the sink, so now max_rewind is 100 ms. When a rewind
2440 * is requested, the sink will only rewind 100 ms, and the
2441 * new stream will have to wait about 10 seconds before it
2442 * becomes audible. */
2444 /* In flat volume mode we need to update the volume as
2446 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2449 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2450 pa_sink_input *i = PA_SINK_INPUT(userdata);
2452 /* If you change anything here, make sure to change the
2453 * sink input handling a few lines down at
2454 * PA_SINK_MESSAGE_START_MOVE, too. */
2459 pa_sink_input_set_state_within_thread(i, i->state);
2461 pa_assert(i->thread_info.attached);
2462 i->thread_info.attached = FALSE;
2464 /* Since the caller sleeps in pa_sink_input_unlink(),
2465 * we can safely access data outside of thread_info even
2466 * though it is mutable */
2468 pa_assert(!i->sync_prev);
2469 pa_assert(!i->sync_next);
2471 if (i->thread_info.sync_prev) {
2472 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2473 i->thread_info.sync_prev = NULL;
2476 if (i->thread_info.sync_next) {
2477 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2478 i->thread_info.sync_next = NULL;
2481 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2482 pa_sink_input_unref(i);
2484 pa_sink_invalidate_requested_latency(s, TRUE);
2485 pa_sink_request_rewind(s, (size_t) -1);
2487 /* In flat volume mode we need to update the volume as
2489 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2492 case PA_SINK_MESSAGE_START_MOVE: {
2493 pa_sink_input *i = PA_SINK_INPUT(userdata);
2495 /* We don't support moving synchronized streams. */
2496 pa_assert(!i->sync_prev);
2497 pa_assert(!i->sync_next);
2498 pa_assert(!i->thread_info.sync_next);
2499 pa_assert(!i->thread_info.sync_prev);
2501 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2503 size_t sink_nbytes, total_nbytes;
2505 /* The old sink probably has some audio from this
2506 * stream in its buffer. We want to "take it back" as
2507 * much as possible and play it to the new sink. We
2508 * don't know at this point how much the old sink can
2509 * rewind. We have to pick something, and that
2510 * something is the full latency of the old sink here.
2511 * So we rewind the stream buffer by the sink latency
2512 * amount, which may be more than what we should
2513 * rewind. This can result in a chunk of audio being
2514 * played both to the old sink and the new sink.
2516 * FIXME: Fix this code so that we don't have to make
2517 * guesses about how much the sink will actually be
2518 * able to rewind. If someone comes up with a solution
2519 * for this, something to note is that the part of the
2520 * latency that the old sink couldn't rewind should
2521 * ideally be compensated after the stream has moved
2522 * to the new sink by adding silence. The new sink
2523 * most likely can't start playing the moved stream
2524 * immediately, and that gap should be removed from
2525 * the "compensation silence" (at least at the time of
2526 * writing this, the move finish code will actually
2527 * already take care of dropping the new sink's
2528 * unrewindable latency, so taking into account the
2529 * unrewindable latency of the old sink is the only
2532 * The render_memblockq contents are discarded,
2533 * because when the sink changes, the format of the
2534 * audio stored in the render_memblockq may change
2535 * too, making the stored audio invalid. FIXME:
2536 * However, the read and write indices are moved back
2537 * the same amount, so if they are not the same now,
2538 * they won't be the same after the rewind either. If
2539 * the write index of the render_memblockq is ahead of
2540 * the read index, then the render_memblockq will feed
2541 * the new sink some silence first, which it shouldn't
2542 * do. The write index should be flushed to be the
2543 * same as the read index. */
2545 /* Get the latency of the sink */
2546 usec = pa_sink_get_latency_within_thread(s);
2547 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2548 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2550 if (total_nbytes > 0) {
2551 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2552 i->thread_info.rewrite_flush = TRUE;
2553 pa_sink_input_process_rewind(i, sink_nbytes);
2560 pa_assert(i->thread_info.attached);
2561 i->thread_info.attached = FALSE;
2563 /* Let's remove the sink input ...*/
2564 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2565 pa_sink_input_unref(i);
2567 pa_sink_invalidate_requested_latency(s, TRUE);
2569 pa_log_debug("Requesting rewind due to started move");
2570 pa_sink_request_rewind(s, (size_t) -1);
2572 /* In flat volume mode we need to update the volume as
2574 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2577 case PA_SINK_MESSAGE_FINISH_MOVE: {
2578 pa_sink_input *i = PA_SINK_INPUT(userdata);
2580 /* We don't support moving synchronized streams. */
2581 pa_assert(!i->sync_prev);
2582 pa_assert(!i->sync_next);
2583 pa_assert(!i->thread_info.sync_next);
2584 pa_assert(!i->thread_info.sync_prev);
2586 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2588 pa_assert(!i->thread_info.attached);
2589 i->thread_info.attached = TRUE;
2594 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2598 /* In the ideal case the new sink would start playing
2599 * the stream immediately. That requires the sink to
2600 * be able to rewind all of its latency, which usually
2601 * isn't possible, so there will probably be some gap
2602 * before the moved stream becomes audible. We then
2603 * have two possibilities: 1) start playing the stream
2604 * from where it is now, or 2) drop the unrewindable
2605 * latency of the sink from the stream. With option 1
2606 * we won't lose any audio but the stream will have a
2607 * pause. With option 2 we may lose some audio but the
2608 * stream time will be somewhat in sync with the wall
2609 * clock. Lennart seems to have chosen option 2 (one
2610 * of the reasons might have been that option 1 is
2611 * actually much harder to implement), so we drop the
2612 * latency of the new sink from the moved stream and
2613 * hope that the sink will undo most of that in the
2616 /* Get the latency of the sink */
2617 usec = pa_sink_get_latency_within_thread(s);
2618 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2621 pa_sink_input_drop(i, nbytes);
2623 pa_log_debug("Requesting rewind due to finished move");
2624 pa_sink_request_rewind(s, nbytes);
2627 /* Updating the requested sink latency has to be done
2628 * after the sink rewind request, not before, because
2629 * otherwise the sink may limit the rewind amount
2632 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2633 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2635 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2636 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2638 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2641 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2642 pa_sink *root_sink = pa_sink_get_master(s);
2644 if (PA_LIKELY(root_sink))
2645 set_shared_volume_within_thread(root_sink);
2650 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2652 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2654 pa_sink_volume_change_push(s);
2656 /* Fall through ... */
2658 case PA_SINK_MESSAGE_SET_VOLUME:
2660 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2661 s->thread_info.soft_volume = s->soft_volume;
2662 pa_sink_request_rewind(s, (size_t) -1);
2665 /* Fall through ... */
2667 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2668 sync_input_volumes_within_thread(s);
2671 case PA_SINK_MESSAGE_GET_VOLUME:
2673 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2675 pa_sink_volume_change_flush(s);
2676 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2679 /* In case sink implementor reset SW volume. */
2680 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2681 s->thread_info.soft_volume = s->soft_volume;
2682 pa_sink_request_rewind(s, (size_t) -1);
2687 case PA_SINK_MESSAGE_SET_MUTE:
2689 if (s->thread_info.soft_muted != s->muted) {
2690 s->thread_info.soft_muted = s->muted;
2691 pa_sink_request_rewind(s, (size_t) -1);
2694 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2699 case PA_SINK_MESSAGE_GET_MUTE:
2701 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2706 case PA_SINK_MESSAGE_SET_STATE: {
2708 pa_bool_t suspend_change =
2709 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2710 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2712 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2714 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2715 s->thread_info.rewind_nbytes = 0;
2716 s->thread_info.rewind_requested = FALSE;
2719 if (suspend_change) {
2723 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2724 if (i->suspend_within_thread)
2725 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2731 case PA_SINK_MESSAGE_DETACH:
2733 /* Detach all streams */
2734 pa_sink_detach_within_thread(s);
2737 case PA_SINK_MESSAGE_ATTACH:
2739 /* Reattach all streams */
2740 pa_sink_attach_within_thread(s);
2743 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2745 pa_usec_t *usec = userdata;
2746 *usec = pa_sink_get_requested_latency_within_thread(s);
2748 /* Yes, that's right, the IO thread will see -1 when no
2749 * explicit requested latency is configured, the main
2750 * thread will see max_latency */
2751 if (*usec == (pa_usec_t) -1)
2752 *usec = s->thread_info.max_latency;
2757 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2758 pa_usec_t *r = userdata;
2760 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2765 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2766 pa_usec_t *r = userdata;
2768 r[0] = s->thread_info.min_latency;
2769 r[1] = s->thread_info.max_latency;
2774 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2776 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2779 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2781 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2784 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2786 *((size_t*) userdata) = s->thread_info.max_rewind;
2789 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2791 *((size_t*) userdata) = s->thread_info.max_request;
2794 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2796 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2799 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2801 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2804 case PA_SINK_MESSAGE_SET_PORT:
2806 pa_assert(userdata);
2808 struct sink_message_set_port *msg_data = userdata;
2809 msg_data->ret = s->set_port(s, msg_data->port);
2813 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2814 /* This message is sent from IO-thread and handled in main thread. */
2815 pa_assert_ctl_context();
2817 /* Make sure we're not messing with main thread when no longer linked */
2818 if (!PA_SINK_IS_LINKED(s->state))
2821 pa_sink_get_volume(s, TRUE);
2822 pa_sink_get_mute(s, TRUE);
2825 case PA_SINK_MESSAGE_SET_LATENCY_OFFSET:
2826 s->thread_info.latency_offset = (pa_usec_t) offset;
2829 case PA_SINK_MESSAGE_GET_LATENCY:
2830 case PA_SINK_MESSAGE_MAX:
2837 /* Called from main thread */
2838 int pa_sink_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2843 pa_core_assert_ref(c);
2844 pa_assert_ctl_context();
2845 pa_assert(cause != 0);
2847 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2850 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2857 /* Called from main thread */
2858 void pa_sink_detach(pa_sink *s) {
2859 pa_sink_assert_ref(s);
2860 pa_assert_ctl_context();
2861 pa_assert(PA_SINK_IS_LINKED(s->state));
2863 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2866 /* Called from main thread */
2867 void pa_sink_attach(pa_sink *s) {
2868 pa_sink_assert_ref(s);
2869 pa_assert_ctl_context();
2870 pa_assert(PA_SINK_IS_LINKED(s->state));
2872 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2875 /* Called from IO thread */
2876 void pa_sink_detach_within_thread(pa_sink *s) {
2880 pa_sink_assert_ref(s);
2881 pa_sink_assert_io_context(s);
2882 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2884 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2888 if (s->monitor_source)
2889 pa_source_detach_within_thread(s->monitor_source);
2892 /* Called from IO thread */
2893 void pa_sink_attach_within_thread(pa_sink *s) {
2897 pa_sink_assert_ref(s);
2898 pa_sink_assert_io_context(s);
2899 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2901 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2905 if (s->monitor_source)
2906 pa_source_attach_within_thread(s->monitor_source);
2909 /* Called from IO thread */
2910 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2911 pa_sink_assert_ref(s);
2912 pa_sink_assert_io_context(s);
2913 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2915 if (s->thread_info.state == PA_SINK_SUSPENDED)
2918 if (nbytes == (size_t) -1)
2919 nbytes = s->thread_info.max_rewind;
2921 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2923 if (s->thread_info.rewind_requested &&
2924 nbytes <= s->thread_info.rewind_nbytes)
2927 s->thread_info.rewind_nbytes = nbytes;
2928 s->thread_info.rewind_requested = TRUE;
2930 if (s->request_rewind)
2931 s->request_rewind(s);
2934 /* Called from IO thread */
2935 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
2936 pa_usec_t result = (pa_usec_t) -1;
2939 pa_usec_t monitor_latency;
2941 pa_sink_assert_ref(s);
2942 pa_sink_assert_io_context(s);
2944 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
2945 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2947 if (s->thread_info.requested_latency_valid)
2948 return s->thread_info.requested_latency;
2950 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2951 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
2952 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
2953 result = i->thread_info.requested_sink_latency;
2955 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
2957 if (monitor_latency != (pa_usec_t) -1 &&
2958 (result == (pa_usec_t) -1 || result > monitor_latency))
2959 result = monitor_latency;
2961 if (result != (pa_usec_t) -1)
2962 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2964 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2965 /* Only cache if properly initialized */
2966 s->thread_info.requested_latency = result;
2967 s->thread_info.requested_latency_valid = TRUE;
2973 /* Called from main thread */
2974 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
2977 pa_sink_assert_ref(s);
2978 pa_assert_ctl_context();
2979 pa_assert(PA_SINK_IS_LINKED(s->state));
2981 if (s->state == PA_SINK_SUSPENDED)
2984 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2989 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
2990 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
2994 pa_sink_assert_ref(s);
2995 pa_sink_assert_io_context(s);
2997 if (max_rewind == s->thread_info.max_rewind)
3000 s->thread_info.max_rewind = max_rewind;
3002 if (PA_SINK_IS_LINKED(s->thread_info.state))
3003 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3004 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
3006 if (s->monitor_source)
3007 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
3010 /* Called from main thread */
3011 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
3012 pa_sink_assert_ref(s);
3013 pa_assert_ctl_context();
3015 if (PA_SINK_IS_LINKED(s->state))
3016 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3018 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3021 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3022 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3025 pa_sink_assert_ref(s);
3026 pa_sink_assert_io_context(s);
3028 if (max_request == s->thread_info.max_request)
3031 s->thread_info.max_request = max_request;
3033 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3036 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3037 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3041 /* Called from main thread */
3042 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3043 pa_sink_assert_ref(s);
3044 pa_assert_ctl_context();
3046 if (PA_SINK_IS_LINKED(s->state))
3047 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3049 pa_sink_set_max_request_within_thread(s, max_request);
3052 /* Called from IO thread */
3053 void pa_sink_invalidate_requested_latency(pa_sink *s, pa_bool_t dynamic) {
3057 pa_sink_assert_ref(s);
3058 pa_sink_assert_io_context(s);
3060 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3061 s->thread_info.requested_latency_valid = FALSE;
3065 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3067 if (s->update_requested_latency)
3068 s->update_requested_latency(s);
3070 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3071 if (i->update_sink_requested_latency)
3072 i->update_sink_requested_latency(i);
3076 /* Called from main thread */
3077 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3078 pa_sink_assert_ref(s);
3079 pa_assert_ctl_context();
3081 /* min_latency == 0: no limit
3082 * min_latency anything else: specified limit
3084 * Similar for max_latency */
3086 if (min_latency < ABSOLUTE_MIN_LATENCY)
3087 min_latency = ABSOLUTE_MIN_LATENCY;
3089 if (max_latency <= 0 ||
3090 max_latency > ABSOLUTE_MAX_LATENCY)
3091 max_latency = ABSOLUTE_MAX_LATENCY;
3093 pa_assert(min_latency <= max_latency);
3095 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3096 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3097 max_latency == ABSOLUTE_MAX_LATENCY) ||
3098 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3100 if (PA_SINK_IS_LINKED(s->state)) {
3106 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3108 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3111 /* Called from main thread */
3112 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3113 pa_sink_assert_ref(s);
3114 pa_assert_ctl_context();
3115 pa_assert(min_latency);
3116 pa_assert(max_latency);
3118 if (PA_SINK_IS_LINKED(s->state)) {
3119 pa_usec_t r[2] = { 0, 0 };
3121 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3123 *min_latency = r[0];
3124 *max_latency = r[1];
3126 *min_latency = s->thread_info.min_latency;
3127 *max_latency = s->thread_info.max_latency;
3131 /* Called from IO thread */
3132 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3133 pa_sink_assert_ref(s);
3134 pa_sink_assert_io_context(s);
3136 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3137 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3138 pa_assert(min_latency <= max_latency);
3140 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3141 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3142 max_latency == ABSOLUTE_MAX_LATENCY) ||
3143 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3145 if (s->thread_info.min_latency == min_latency &&
3146 s->thread_info.max_latency == max_latency)
3149 s->thread_info.min_latency = min_latency;
3150 s->thread_info.max_latency = max_latency;
3152 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3156 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3157 if (i->update_sink_latency_range)
3158 i->update_sink_latency_range(i);
3161 pa_sink_invalidate_requested_latency(s, FALSE);
3163 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3166 /* Called from main thread */
3167 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3168 pa_sink_assert_ref(s);
3169 pa_assert_ctl_context();
3171 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3172 pa_assert(latency == 0);
3176 if (latency < ABSOLUTE_MIN_LATENCY)
3177 latency = ABSOLUTE_MIN_LATENCY;
3179 if (latency > ABSOLUTE_MAX_LATENCY)
3180 latency = ABSOLUTE_MAX_LATENCY;
3182 if (PA_SINK_IS_LINKED(s->state))
3183 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3185 s->thread_info.fixed_latency = latency;
3187 pa_source_set_fixed_latency(s->monitor_source, latency);
3190 /* Called from main thread */
3191 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3194 pa_sink_assert_ref(s);
3195 pa_assert_ctl_context();
3197 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3200 if (PA_SINK_IS_LINKED(s->state))
3201 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3203 latency = s->thread_info.fixed_latency;
3208 /* Called from IO thread */
3209 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3210 pa_sink_assert_ref(s);
3211 pa_sink_assert_io_context(s);
3213 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3214 pa_assert(latency == 0);
3218 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3219 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3221 if (s->thread_info.fixed_latency == latency)
3224 s->thread_info.fixed_latency = latency;
3226 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3230 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3231 if (i->update_sink_fixed_latency)
3232 i->update_sink_fixed_latency(i);
3235 pa_sink_invalidate_requested_latency(s, FALSE);
3237 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3240 /* Called from main context */
3241 void pa_sink_set_latency_offset(pa_sink *s, pa_usec_t offset) {
3242 pa_sink_assert_ref(s);
3244 s->latency_offset = offset;
3246 if (PA_SINK_IS_LINKED(s->state))
3247 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_OFFSET, NULL, (int64_t) offset, NULL) == 0);
3249 s->thread_info.fixed_latency = offset;
3252 /* Called from main context */
3253 size_t pa_sink_get_max_rewind(pa_sink *s) {
3255 pa_assert_ctl_context();
3256 pa_sink_assert_ref(s);
3258 if (!PA_SINK_IS_LINKED(s->state))
3259 return s->thread_info.max_rewind;
3261 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3266 /* Called from main context */
3267 size_t pa_sink_get_max_request(pa_sink *s) {
3269 pa_sink_assert_ref(s);
3270 pa_assert_ctl_context();
3272 if (!PA_SINK_IS_LINKED(s->state))
3273 return s->thread_info.max_request;
3275 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3280 /* Called from main context */
3281 int pa_sink_set_port(pa_sink *s, const char *name, pa_bool_t save) {
3282 pa_device_port *port;
3285 pa_sink_assert_ref(s);
3286 pa_assert_ctl_context();
3289 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3290 return -PA_ERR_NOTIMPLEMENTED;
3293 if (!s->ports || !name)
3294 return -PA_ERR_NOENTITY;
3296 if (!(port = pa_hashmap_get(s->ports, name)))
3297 return -PA_ERR_NOENTITY;
3299 if (s->active_port == port) {
3300 s->save_port = s->save_port || save;
3304 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3305 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3306 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3310 ret = s->set_port(s, port);
3313 return -PA_ERR_NOENTITY;
3315 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3317 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3319 s->active_port = port;
3320 s->save_port = save;
3322 pa_sink_set_latency_offset(s, s->active_port->latency_offset);
3324 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3329 pa_bool_t pa_device_init_icon(pa_proplist *p, pa_bool_t is_sink) {
3330 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3334 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3337 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3339 if (pa_streq(ff, "microphone"))
3340 t = "audio-input-microphone";
3341 else if (pa_streq(ff, "webcam"))
3343 else if (pa_streq(ff, "computer"))
3345 else if (pa_streq(ff, "handset"))
3347 else if (pa_streq(ff, "portable"))
3348 t = "multimedia-player";
3349 else if (pa_streq(ff, "tv"))
3350 t = "video-display";
3353 * The following icons are not part of the icon naming spec,
3354 * because Rodney Dawes sucks as the maintainer of that spec.
3356 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3358 else if (pa_streq(ff, "headset"))
3359 t = "audio-headset";
3360 else if (pa_streq(ff, "headphone"))
3361 t = "audio-headphones";
3362 else if (pa_streq(ff, "speaker"))
3363 t = "audio-speakers";
3364 else if (pa_streq(ff, "hands-free"))
3365 t = "audio-handsfree";
3369 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3370 if (pa_streq(c, "modem"))
3377 t = "audio-input-microphone";
3380 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3381 if (strstr(profile, "analog"))
3383 else if (strstr(profile, "iec958"))
3385 else if (strstr(profile, "hdmi"))
3389 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3391 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3396 pa_bool_t pa_device_init_description(pa_proplist *p) {
3397 const char *s, *d = NULL, *k;
3400 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3403 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3404 if (pa_streq(s, "internal"))
3405 d = _("Built-in Audio");
3408 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3409 if (pa_streq(s, "modem"))
3413 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3418 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3421 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, "%s %s", d, k);
3423 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3428 pa_bool_t pa_device_init_intended_roles(pa_proplist *p) {
3432 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3435 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3436 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3437 || pa_streq(s, "headset")) {
3438 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3445 unsigned pa_device_init_priority(pa_proplist *p) {
3447 unsigned priority = 0;
3451 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3453 if (pa_streq(s, "sound"))
3455 else if (!pa_streq(s, "modem"))
3459 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3461 if (pa_streq(s, "internal"))
3463 else if (pa_streq(s, "speaker"))
3465 else if (pa_streq(s, "headphone"))
3469 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3471 if (pa_streq(s, "pci"))
3473 else if (pa_streq(s, "usb"))
3475 else if (pa_streq(s, "bluetooth"))
3479 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3481 if (pa_startswith(s, "analog-"))
3483 else if (pa_startswith(s, "iec958-"))
3490 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3492 /* Called from the IO thread. */
3493 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3494 pa_sink_volume_change *c;
3495 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3496 c = pa_xnew(pa_sink_volume_change, 1);
3498 PA_LLIST_INIT(pa_sink_volume_change, c);
3500 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3504 /* Called from the IO thread. */
3505 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3507 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3511 /* Called from the IO thread. */
3512 void pa_sink_volume_change_push(pa_sink *s) {
3513 pa_sink_volume_change *c = NULL;
3514 pa_sink_volume_change *nc = NULL;
3515 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3517 const char *direction = NULL;
3520 nc = pa_sink_volume_change_new(s);
3522 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3523 * Adding one more volume for HW would get us rid of this, but I am trying
3524 * to survive with the ones we already have. */
3525 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3527 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3528 pa_log_debug("Volume not changing");
3529 pa_sink_volume_change_free(nc);
3533 nc->at = pa_sink_get_latency_within_thread(s);
3534 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3536 if (s->thread_info.volume_changes_tail) {
3537 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3538 /* If volume is going up let's do it a bit late. If it is going
3539 * down let's do it a bit early. */
3540 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3541 if (nc->at + safety_margin > c->at) {
3542 nc->at += safety_margin;
3547 else if (nc->at - safety_margin > c->at) {
3548 nc->at -= safety_margin;
3556 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3557 nc->at += safety_margin;
3560 nc->at -= safety_margin;
3563 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3566 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3569 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3571 /* We can ignore volume events that came earlier but should happen later than this. */
3572 PA_LLIST_FOREACH(c, nc->next) {
3573 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3574 pa_sink_volume_change_free(c);
3577 s->thread_info.volume_changes_tail = nc;
3580 /* Called from the IO thread. */
3581 static void pa_sink_volume_change_flush(pa_sink *s) {
3582 pa_sink_volume_change *c = s->thread_info.volume_changes;
3584 s->thread_info.volume_changes = NULL;
3585 s->thread_info.volume_changes_tail = NULL;
3587 pa_sink_volume_change *next = c->next;
3588 pa_sink_volume_change_free(c);
3593 /* Called from the IO thread. */
3594 pa_bool_t pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3596 pa_bool_t ret = FALSE;
3600 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3606 pa_assert(s->write_volume);
3608 now = pa_rtclock_now();
3610 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3611 pa_sink_volume_change *c = s->thread_info.volume_changes;
3612 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3613 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3614 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3616 s->thread_info.current_hw_volume = c->hw_volume;
3617 pa_sink_volume_change_free(c);
3623 if (s->thread_info.volume_changes) {
3625 *usec_to_next = s->thread_info.volume_changes->at - now;
3626 if (pa_log_ratelimit(PA_LOG_DEBUG))
3627 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3632 s->thread_info.volume_changes_tail = NULL;
3637 /* Called from the IO thread. */
3638 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3639 /* All the queued volume events later than current latency are shifted to happen earlier. */
3640 pa_sink_volume_change *c;
3641 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3642 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3643 pa_usec_t limit = pa_sink_get_latency_within_thread(s);
3645 pa_log_debug("latency = %lld", (long long) limit);
3646 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3648 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3649 pa_usec_t modified_limit = limit;
3650 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3651 modified_limit -= s->thread_info.volume_change_safety_margin;
3653 modified_limit += s->thread_info.volume_change_safety_margin;
3654 if (c->at > modified_limit) {
3656 if (c->at < modified_limit)
3657 c->at = modified_limit;
3659 prev_vol = pa_cvolume_avg(&c->hw_volume);
3661 pa_sink_volume_change_apply(s, NULL);
3664 /* Called from the main thread */
3665 /* Gets the list of formats supported by the sink. The members and idxset must
3666 * be freed by the caller. */
3667 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3672 if (s->get_formats) {
3673 /* Sink supports format query, all is good */
3674 ret = s->get_formats(s);
3676 /* Sink doesn't support format query, so assume it does PCM */
3677 pa_format_info *f = pa_format_info_new();
3678 f->encoding = PA_ENCODING_PCM;
3680 ret = pa_idxset_new(NULL, NULL);
3681 pa_idxset_put(ret, f, NULL);
3687 /* Called from the main thread */
3688 /* Allows an external source to set what formats a sink supports if the sink
3689 * permits this. The function makes a copy of the formats on success. */
3690 pa_bool_t pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3695 /* Sink supports setting formats -- let's give it a shot */
3696 return s->set_formats(s, formats);
3698 /* Sink doesn't support setting this -- bail out */
3702 /* Called from the main thread */
3703 /* Checks if the sink can accept this format */
3704 pa_bool_t pa_sink_check_format(pa_sink *s, pa_format_info *f)
3706 pa_idxset *formats = NULL;
3707 pa_bool_t ret = FALSE;
3712 formats = pa_sink_get_formats(s);
3715 pa_format_info *finfo_device;
3718 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3719 if (pa_format_info_is_compatible(finfo_device, f)) {
3725 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
3731 /* Called from the main thread */
3732 /* Calculates the intersection between formats supported by the sink and
3733 * in_formats, and returns these, in the order of the sink's formats. */
3734 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3735 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3736 pa_format_info *f_sink, *f_in;
3741 if (!in_formats || pa_idxset_isempty(in_formats))
3744 sink_formats = pa_sink_get_formats(s);
3746 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3747 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3748 if (pa_format_info_is_compatible(f_sink, f_in))
3749 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3755 pa_idxset_free(sink_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);