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);
145 while ((p = pa_hashmap_steal_first(data->ports)))
146 pa_device_port_free(p);
148 pa_hashmap_free(data->ports, NULL, NULL);
151 pa_xfree(data->name);
152 pa_xfree(data->active_port);
155 pa_device_port *pa_device_port_new(const char *name, const char *description, size_t extra) {
160 p = pa_xmalloc(PA_ALIGN(sizeof(pa_device_port)) + extra);
161 p->name = pa_xstrdup(name);
162 p->description = pa_xstrdup(description);
169 void pa_device_port_free(pa_device_port *p) {
173 pa_xfree(p->description);
177 /* Called from main context */
178 static void reset_callbacks(pa_sink *s) {
182 s->get_volume = NULL;
183 s->set_volume = NULL;
184 s->write_volume = NULL;
187 s->request_rewind = NULL;
188 s->update_requested_latency = NULL;
190 s->get_formats = NULL;
191 s->set_formats = NULL;
192 s->update_rate = NULL;
195 /* Called from main context */
196 pa_sink* pa_sink_new(
198 pa_sink_new_data *data,
199 pa_sink_flags_t flags) {
203 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
204 pa_source_new_data source_data;
210 pa_assert(data->name);
211 pa_assert_ctl_context();
213 s = pa_msgobject_new(pa_sink);
215 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SINK, s, data->namereg_fail))) {
216 pa_log_debug("Failed to register name %s.", data->name);
221 pa_sink_new_data_set_name(data, name);
223 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_NEW], data) < 0) {
225 pa_namereg_unregister(core, name);
229 /* FIXME, need to free s here on failure */
231 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
232 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
234 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
236 if (!data->channel_map_is_set)
237 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
239 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
240 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
242 /* FIXME: There should probably be a general function for checking whether
243 * the sink volume is allowed to be set, like there is for sink inputs. */
244 pa_assert(!data->volume_is_set || !(flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
246 if (!data->volume_is_set) {
247 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
248 data->save_volume = FALSE;
251 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
252 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
254 if (!data->muted_is_set)
258 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
260 pa_device_init_description(data->proplist);
261 pa_device_init_icon(data->proplist, TRUE);
262 pa_device_init_intended_roles(data->proplist);
264 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_FIXATE], data) < 0) {
266 pa_namereg_unregister(core, name);
270 s->parent.parent.free = sink_free;
271 s->parent.process_msg = pa_sink_process_msg;
274 s->state = PA_SINK_INIT;
277 s->suspend_cause = 0;
278 s->name = pa_xstrdup(name);
279 s->proplist = pa_proplist_copy(data->proplist);
280 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
281 s->module = data->module;
282 s->card = data->card;
284 s->priority = pa_device_init_priority(s->proplist);
286 s->sample_spec = data->sample_spec;
287 s->channel_map = data->channel_map;
288 s->default_sample_rate = s->sample_spec.rate;
290 if (data->alternate_sample_rate_is_set)
291 s->alternate_sample_rate = data->alternate_sample_rate;
293 s->alternate_sample_rate = s->core->alternate_sample_rate;
295 if (s->sample_spec.rate == s->alternate_sample_rate) {
296 pa_log_warn("Default and alternate sample rates are the same.");
297 s->alternate_sample_rate = 0;
300 s->inputs = pa_idxset_new(NULL, NULL);
302 s->input_to_master = NULL;
304 s->reference_volume = s->real_volume = data->volume;
305 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
306 s->base_volume = PA_VOLUME_NORM;
307 s->n_volume_steps = PA_VOLUME_NORM+1;
308 s->muted = data->muted;
309 s->refresh_volume = s->refresh_muted = FALSE;
316 /* As a minor optimization we just steal the list instead of
318 s->ports = data->ports;
321 s->active_port = NULL;
322 s->save_port = FALSE;
324 if (data->active_port && s->ports)
325 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
326 s->save_port = data->save_port;
328 if (!s->active_port && s->ports) {
332 PA_HASHMAP_FOREACH(p, s->ports, state)
333 if (!s->active_port || p->priority > s->active_port->priority)
337 s->save_volume = data->save_volume;
338 s->save_muted = data->save_muted;
340 pa_silence_memchunk_get(
341 &core->silence_cache,
347 s->thread_info.rtpoll = NULL;
348 s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
349 s->thread_info.soft_volume = s->soft_volume;
350 s->thread_info.soft_muted = s->muted;
351 s->thread_info.state = s->state;
352 s->thread_info.rewind_nbytes = 0;
353 s->thread_info.rewind_requested = FALSE;
354 s->thread_info.max_rewind = 0;
355 s->thread_info.max_request = 0;
356 s->thread_info.requested_latency_valid = FALSE;
357 s->thread_info.requested_latency = 0;
358 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
359 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
360 s->thread_info.fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
362 PA_LLIST_HEAD_INIT(pa_sink_volume_change, s->thread_info.volume_changes);
363 s->thread_info.volume_changes_tail = NULL;
364 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
365 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
366 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
368 /* FIXME: This should probably be moved to pa_sink_put() */
369 pa_assert_se(pa_idxset_put(core->sinks, s, &s->index) >= 0);
372 pa_assert_se(pa_idxset_put(s->card->sinks, s, NULL) >= 0);
374 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
375 pa_log_info("Created sink %u \"%s\" with sample spec %s and channel map %s\n %s",
378 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
379 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
383 pa_source_new_data_init(&source_data);
384 pa_source_new_data_set_sample_spec(&source_data, &s->sample_spec);
385 pa_source_new_data_set_channel_map(&source_data, &s->channel_map);
386 pa_source_new_data_set_alternate_sample_rate(&source_data, s->alternate_sample_rate);
387 source_data.name = pa_sprintf_malloc("%s.monitor", name);
388 source_data.driver = data->driver;
389 source_data.module = data->module;
390 source_data.card = data->card;
392 dn = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
393 pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Monitor of %s", dn ? dn : s->name);
394 pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "monitor");
396 s->monitor_source = pa_source_new(core, &source_data,
397 ((flags & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
398 ((flags & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0));
400 pa_source_new_data_done(&source_data);
402 if (!s->monitor_source) {
408 s->monitor_source->monitor_of = s;
410 pa_source_set_latency_range(s->monitor_source, s->thread_info.min_latency, s->thread_info.max_latency);
411 pa_source_set_fixed_latency(s->monitor_source, s->thread_info.fixed_latency);
412 pa_source_set_max_rewind(s->monitor_source, s->thread_info.max_rewind);
417 /* Called from main context */
418 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
420 pa_bool_t suspend_change;
421 pa_sink_state_t original_state;
424 pa_assert_ctl_context();
426 if (s->state == state)
429 original_state = s->state;
432 (original_state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(state)) ||
433 (PA_SINK_IS_OPENED(original_state) && state == PA_SINK_SUSPENDED);
436 if ((ret = s->set_state(s, state)) < 0)
440 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
443 s->set_state(s, original_state);
450 if (state != PA_SINK_UNLINKED) { /* if we enter UNLINKED state pa_sink_unlink() will fire the appropriate events */
451 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], s);
452 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
455 if (suspend_change) {
459 /* We're suspending or resuming, tell everyone about it */
461 PA_IDXSET_FOREACH(i, s->inputs, idx)
462 if (s->state == PA_SINK_SUSPENDED &&
463 (i->flags & PA_SINK_INPUT_KILL_ON_SUSPEND))
464 pa_sink_input_kill(i);
466 i->suspend(i, state == PA_SINK_SUSPENDED);
468 if (s->monitor_source)
469 pa_source_sync_suspend(s->monitor_source);
475 void pa_sink_set_get_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
481 void pa_sink_set_set_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
482 pa_sink_flags_t flags;
485 pa_assert(!s->write_volume || cb);
489 /* Save the current flags so we can tell if they've changed */
493 /* The sink implementor is responsible for setting decibel volume support */
494 s->flags |= PA_SINK_HW_VOLUME_CTRL;
496 s->flags &= ~PA_SINK_HW_VOLUME_CTRL;
497 /* See note below in pa_sink_put() about volume sharing and decibel volumes */
498 pa_sink_enable_decibel_volume(s, !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
501 /* If the flags have changed after init, let any clients know via a change event */
502 if (s->state != PA_SINK_INIT && flags != s->flags)
503 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
506 void pa_sink_set_write_volume_callback(pa_sink *s, pa_sink_cb_t cb) {
507 pa_sink_flags_t flags;
510 pa_assert(!cb || s->set_volume);
512 s->write_volume = cb;
514 /* Save the current flags so we can tell if they've changed */
518 s->flags |= PA_SINK_DEFERRED_VOLUME;
520 s->flags &= ~PA_SINK_DEFERRED_VOLUME;
522 /* If the flags have changed after init, let any clients know via a change event */
523 if (s->state != PA_SINK_INIT && flags != s->flags)
524 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
527 void pa_sink_set_get_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
533 void pa_sink_set_set_mute_callback(pa_sink *s, pa_sink_cb_t cb) {
534 pa_sink_flags_t flags;
540 /* Save the current flags so we can tell if they've changed */
544 s->flags |= PA_SINK_HW_MUTE_CTRL;
546 s->flags &= ~PA_SINK_HW_MUTE_CTRL;
548 /* If the flags have changed after init, let any clients know via a change event */
549 if (s->state != PA_SINK_INIT && flags != s->flags)
550 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
553 static void enable_flat_volume(pa_sink *s, pa_bool_t enable) {
554 pa_sink_flags_t flags;
558 /* Always follow the overall user preference here */
559 enable = enable && s->core->flat_volumes;
561 /* Save the current flags so we can tell if they've changed */
565 s->flags |= PA_SINK_FLAT_VOLUME;
567 s->flags &= ~PA_SINK_FLAT_VOLUME;
569 /* If the flags have changed after init, let any clients know via a change event */
570 if (s->state != PA_SINK_INIT && flags != s->flags)
571 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
574 void pa_sink_enable_decibel_volume(pa_sink *s, pa_bool_t enable) {
575 pa_sink_flags_t flags;
579 /* Save the current flags so we can tell if they've changed */
583 s->flags |= PA_SINK_DECIBEL_VOLUME;
584 enable_flat_volume(s, TRUE);
586 s->flags &= ~PA_SINK_DECIBEL_VOLUME;
587 enable_flat_volume(s, FALSE);
590 /* If the flags have changed after init, let any clients know via a change event */
591 if (s->state != PA_SINK_INIT && flags != s->flags)
592 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
595 /* Called from main context */
596 void pa_sink_put(pa_sink* s) {
597 pa_sink_assert_ref(s);
598 pa_assert_ctl_context();
600 pa_assert(s->state == PA_SINK_INIT);
601 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || s->input_to_master);
603 /* The following fields must be initialized properly when calling _put() */
604 pa_assert(s->asyncmsgq);
605 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
607 /* Generally, flags should be initialized via pa_sink_new(). As a
608 * special exception we allow some volume related flags to be set
609 * between _new() and _put() by the callback setter functions above.
611 * Thus we implement a couple safeguards here which ensure the above
612 * setters were used (or at least the implementor made manual changes
613 * in a compatible way).
615 * Note: All of these flags set here can change over the life time
617 pa_assert(!(s->flags & PA_SINK_HW_VOLUME_CTRL) || s->set_volume);
618 pa_assert(!(s->flags & PA_SINK_DEFERRED_VOLUME) || s->write_volume);
619 pa_assert(!(s->flags & PA_SINK_HW_MUTE_CTRL) || s->set_mute);
621 /* XXX: Currently decibel volume is disabled for all sinks that use volume
622 * sharing. When the master sink supports decibel volume, it would be good
623 * to have the flag also in the filter sink, but currently we don't do that
624 * so that the flags of the filter sink never change when it's moved from
625 * a master sink to another. One solution for this problem would be to
626 * remove user-visible volume altogether from filter sinks when volume
627 * sharing is used, but the current approach was easier to implement... */
628 /* We always support decibel volumes in software, otherwise we leave it to
629 * the sink implementor to set this flag as needed.
631 * Note: This flag can also change over the life time of the sink. */
632 if (!(s->flags & PA_SINK_HW_VOLUME_CTRL) && !(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
633 pa_sink_enable_decibel_volume(s, TRUE);
635 /* If the sink implementor support DB volumes by itself, we should always
636 * try and enable flat volumes too */
637 if ((s->flags & PA_SINK_DECIBEL_VOLUME))
638 enable_flat_volume(s, TRUE);
640 if (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) {
641 pa_sink *root_sink = pa_sink_get_master(s);
643 pa_assert(root_sink);
645 s->reference_volume = root_sink->reference_volume;
646 pa_cvolume_remap(&s->reference_volume, &root_sink->channel_map, &s->channel_map);
648 s->real_volume = root_sink->real_volume;
649 pa_cvolume_remap(&s->real_volume, &root_sink->channel_map, &s->channel_map);
651 /* We assume that if the sink implementor changed the default
652 * volume he did so in real_volume, because that is the usual
653 * place where he is supposed to place his changes. */
654 s->reference_volume = s->real_volume;
656 s->thread_info.soft_volume = s->soft_volume;
657 s->thread_info.soft_muted = s->muted;
658 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
660 pa_assert((s->flags & PA_SINK_HW_VOLUME_CTRL)
661 || (s->base_volume == PA_VOLUME_NORM
662 && ((s->flags & PA_SINK_DECIBEL_VOLUME || (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)))));
663 pa_assert(!(s->flags & PA_SINK_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
664 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
665 pa_assert(!(s->flags & PA_SINK_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_LATENCY));
666 pa_assert(!(s->flags & PA_SINK_DYNAMIC_LATENCY) == !(s->monitor_source->flags & PA_SOURCE_DYNAMIC_LATENCY));
668 pa_assert(s->monitor_source->thread_info.fixed_latency == s->thread_info.fixed_latency);
669 pa_assert(s->monitor_source->thread_info.min_latency == s->thread_info.min_latency);
670 pa_assert(s->monitor_source->thread_info.max_latency == s->thread_info.max_latency);
672 pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
674 pa_source_put(s->monitor_source);
676 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
677 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
680 /* Called from main context */
681 void pa_sink_unlink(pa_sink* s) {
683 pa_sink_input *i, *j = NULL;
686 pa_assert_ctl_context();
688 /* Please note that pa_sink_unlink() does more than simply
689 * reversing pa_sink_put(). It also undoes the registrations
690 * already done in pa_sink_new()! */
692 /* All operations here shall be idempotent, i.e. pa_sink_unlink()
693 * may be called multiple times on the same sink without bad
696 linked = PA_SINK_IS_LINKED(s->state);
699 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK], s);
701 if (s->state != PA_SINK_UNLINKED)
702 pa_namereg_unregister(s->core, s->name);
703 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
706 pa_idxset_remove_by_data(s->card->sinks, s, NULL);
708 while ((i = pa_idxset_first(s->inputs, NULL))) {
710 pa_sink_input_kill(i);
715 sink_set_state(s, PA_SINK_UNLINKED);
717 s->state = PA_SINK_UNLINKED;
721 if (s->monitor_source)
722 pa_source_unlink(s->monitor_source);
725 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
726 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], s);
730 /* Called from main context */
731 static void sink_free(pa_object *o) {
732 pa_sink *s = PA_SINK(o);
736 pa_assert_ctl_context();
737 pa_assert(pa_sink_refcnt(s) == 0);
739 if (PA_SINK_IS_LINKED(s->state))
742 pa_log_info("Freeing sink %u \"%s\"", s->index, s->name);
744 if (s->monitor_source) {
745 pa_source_unref(s->monitor_source);
746 s->monitor_source = NULL;
749 pa_idxset_free(s->inputs, NULL, NULL);
751 while ((i = pa_hashmap_steal_first(s->thread_info.inputs)))
752 pa_sink_input_unref(i);
754 pa_hashmap_free(s->thread_info.inputs, NULL, NULL);
756 if (s->silence.memblock)
757 pa_memblock_unref(s->silence.memblock);
763 pa_proplist_free(s->proplist);
768 while ((p = pa_hashmap_steal_first(s->ports)))
769 pa_device_port_free(p);
771 pa_hashmap_free(s->ports, NULL, NULL);
777 /* Called from main context, and not while the IO thread is active, please */
778 void pa_sink_set_asyncmsgq(pa_sink *s, pa_asyncmsgq *q) {
779 pa_sink_assert_ref(s);
780 pa_assert_ctl_context();
784 if (s->monitor_source)
785 pa_source_set_asyncmsgq(s->monitor_source, q);
788 /* Called from main context, and not while the IO thread is active, please */
789 void pa_sink_update_flags(pa_sink *s, pa_sink_flags_t mask, pa_sink_flags_t value) {
790 pa_sink_assert_ref(s);
791 pa_assert_ctl_context();
796 /* For now, allow only a minimal set of flags to be changed. */
797 pa_assert((mask & ~(PA_SINK_DYNAMIC_LATENCY|PA_SINK_LATENCY)) == 0);
799 s->flags = (s->flags & ~mask) | (value & mask);
801 pa_source_update_flags(s->monitor_source,
802 ((mask & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
803 ((mask & PA_SINK_DYNAMIC_LATENCY) ? PA_SOURCE_DYNAMIC_LATENCY : 0),
804 ((value & PA_SINK_LATENCY) ? PA_SOURCE_LATENCY : 0) |
805 ((value & PA_SINK_DYNAMIC_LATENCY) ? PA_SINK_DYNAMIC_LATENCY : 0));
808 /* Called from IO context, or before _put() from main context */
809 void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p) {
810 pa_sink_assert_ref(s);
811 pa_sink_assert_io_context(s);
813 s->thread_info.rtpoll = p;
815 if (s->monitor_source)
816 pa_source_set_rtpoll(s->monitor_source, p);
819 /* Called from main context */
820 int pa_sink_update_status(pa_sink*s) {
821 pa_sink_assert_ref(s);
822 pa_assert_ctl_context();
823 pa_assert(PA_SINK_IS_LINKED(s->state));
825 if (s->state == PA_SINK_SUSPENDED)
828 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
831 /* Called from main context */
832 int pa_sink_suspend(pa_sink *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
833 pa_sink_assert_ref(s);
834 pa_assert_ctl_context();
835 pa_assert(PA_SINK_IS_LINKED(s->state));
836 pa_assert(cause != 0);
839 s->suspend_cause |= cause;
840 s->monitor_source->suspend_cause |= cause;
842 s->suspend_cause &= ~cause;
843 s->monitor_source->suspend_cause &= ~cause;
846 if ((pa_sink_get_state(s) == PA_SINK_SUSPENDED) == !!s->suspend_cause)
849 pa_log_debug("Suspend cause of sink %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
851 if (s->suspend_cause)
852 return sink_set_state(s, PA_SINK_SUSPENDED);
854 return sink_set_state(s, pa_sink_used_by(s) ? PA_SINK_RUNNING : PA_SINK_IDLE);
857 /* Called from main context */
858 pa_queue *pa_sink_move_all_start(pa_sink *s, pa_queue *q) {
859 pa_sink_input *i, *n;
862 pa_sink_assert_ref(s);
863 pa_assert_ctl_context();
864 pa_assert(PA_SINK_IS_LINKED(s->state));
869 for (i = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); i; i = n) {
870 n = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx));
872 pa_sink_input_ref(i);
874 if (pa_sink_input_start_move(i) >= 0)
877 pa_sink_input_unref(i);
883 /* Called from main context */
884 void pa_sink_move_all_finish(pa_sink *s, pa_queue *q, pa_bool_t save) {
887 pa_sink_assert_ref(s);
888 pa_assert_ctl_context();
889 pa_assert(PA_SINK_IS_LINKED(s->state));
892 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
893 if (pa_sink_input_finish_move(i, s, save) < 0)
894 pa_sink_input_fail_move(i);
896 pa_sink_input_unref(i);
899 pa_queue_free(q, NULL, NULL);
902 /* Called from main context */
903 void pa_sink_move_all_fail(pa_queue *q) {
906 pa_assert_ctl_context();
909 while ((i = PA_SINK_INPUT(pa_queue_pop(q)))) {
910 pa_sink_input_fail_move(i);
911 pa_sink_input_unref(i);
914 pa_queue_free(q, NULL, NULL);
917 /* Called from IO thread context */
918 void pa_sink_process_rewind(pa_sink *s, size_t nbytes) {
922 pa_sink_assert_ref(s);
923 pa_sink_assert_io_context(s);
924 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
926 /* If nobody requested this and this is actually no real rewind
927 * then we can short cut this. Please note that this means that
928 * not all rewind requests triggered upstream will always be
929 * translated in actual requests! */
930 if (!s->thread_info.rewind_requested && nbytes <= 0)
933 s->thread_info.rewind_nbytes = 0;
934 s->thread_info.rewind_requested = FALSE;
936 if (s->thread_info.state == PA_SINK_SUSPENDED)
940 pa_log_debug("Processing rewind...");
941 if (s->flags & PA_SINK_DEFERRED_VOLUME)
942 pa_sink_volume_change_rewind(s, nbytes);
945 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
946 pa_sink_input_assert_ref(i);
947 pa_sink_input_process_rewind(i, nbytes);
951 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
952 pa_source_process_rewind(s->monitor_source, nbytes);
956 /* Called from IO thread context */
957 static unsigned fill_mix_info(pa_sink *s, size_t *length, pa_mix_info *info, unsigned maxinfo) {
961 size_t mixlength = *length;
963 pa_sink_assert_ref(s);
964 pa_sink_assert_io_context(s);
967 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
968 pa_sink_input_assert_ref(i);
970 pa_sink_input_peek(i, *length, &info->chunk, &info->volume);
972 if (mixlength == 0 || info->chunk.length < mixlength)
973 mixlength = info->chunk.length;
975 if (pa_memblock_is_silence(info->chunk.memblock)) {
976 pa_memblock_unref(info->chunk.memblock);
980 info->userdata = pa_sink_input_ref(i);
982 pa_assert(info->chunk.memblock);
983 pa_assert(info->chunk.length > 0);
996 /* Called from IO thread context */
997 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, pa_memchunk *result) {
1001 unsigned n_unreffed = 0;
1003 pa_sink_assert_ref(s);
1004 pa_sink_assert_io_context(s);
1006 pa_assert(result->memblock);
1007 pa_assert(result->length > 0);
1009 /* We optimize for the case where the order of the inputs has not changed */
1011 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
1013 pa_mix_info* m = NULL;
1015 pa_sink_input_assert_ref(i);
1017 /* Let's try to find the matching entry info the pa_mix_info array */
1018 for (j = 0; j < n; j ++) {
1020 if (info[p].userdata == i) {
1030 /* Drop read data */
1031 pa_sink_input_drop(i, result->length);
1033 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state)) {
1035 if (pa_hashmap_size(i->thread_info.direct_outputs) > 0) {
1036 void *ostate = NULL;
1037 pa_source_output *o;
1040 if (m && m->chunk.memblock) {
1042 pa_memblock_ref(c.memblock);
1043 pa_assert(result->length <= c.length);
1044 c.length = result->length;
1046 pa_memchunk_make_writable(&c, 0);
1047 pa_volume_memchunk(&c, &s->sample_spec, &m->volume);
1050 pa_memblock_ref(c.memblock);
1051 pa_assert(result->length <= c.length);
1052 c.length = result->length;
1055 while ((o = pa_hashmap_iterate(i->thread_info.direct_outputs, &ostate, NULL))) {
1056 pa_source_output_assert_ref(o);
1057 pa_assert(o->direct_on_input == i);
1058 pa_source_post_direct(s->monitor_source, o, &c);
1061 pa_memblock_unref(c.memblock);
1066 if (m->chunk.memblock)
1067 pa_memblock_unref(m->chunk.memblock);
1068 pa_memchunk_reset(&m->chunk);
1070 pa_sink_input_unref(m->userdata);
1077 /* Now drop references to entries that are included in the
1078 * pa_mix_info array but don't exist anymore */
1080 if (n_unreffed < n) {
1081 for (; n > 0; info++, n--) {
1083 pa_sink_input_unref(info->userdata);
1084 if (info->chunk.memblock)
1085 pa_memblock_unref(info->chunk.memblock);
1089 if (s->monitor_source && PA_SOURCE_IS_LINKED(s->monitor_source->thread_info.state))
1090 pa_source_post(s->monitor_source, result);
1093 /* Called from IO thread context */
1094 void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
1095 pa_mix_info info[MAX_MIX_CHANNELS];
1097 size_t block_size_max;
1099 pa_sink_assert_ref(s);
1100 pa_sink_assert_io_context(s);
1101 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1102 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1105 pa_assert(!s->thread_info.rewind_requested);
1106 pa_assert(s->thread_info.rewind_nbytes == 0);
1108 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1109 result->memblock = pa_memblock_ref(s->silence.memblock);
1110 result->index = s->silence.index;
1111 result->length = PA_MIN(s->silence.length, length);
1118 length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
1120 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1121 if (length > block_size_max)
1122 length = pa_frame_align(block_size_max, &s->sample_spec);
1124 pa_assert(length > 0);
1126 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1130 *result = s->silence;
1131 pa_memblock_ref(result->memblock);
1133 if (result->length > length)
1134 result->length = length;
1136 } else if (n == 1) {
1139 *result = info[0].chunk;
1140 pa_memblock_ref(result->memblock);
1142 if (result->length > length)
1143 result->length = length;
1145 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1147 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume)) {
1148 pa_memblock_unref(result->memblock);
1149 pa_silence_memchunk_get(&s->core->silence_cache,
1154 } else if (!pa_cvolume_is_norm(&volume)) {
1155 pa_memchunk_make_writable(result, 0);
1156 pa_volume_memchunk(result, &s->sample_spec, &volume);
1160 result->memblock = pa_memblock_new(s->core->mempool, length);
1162 ptr = pa_memblock_acquire(result->memblock);
1163 result->length = pa_mix(info, n,
1166 &s->thread_info.soft_volume,
1167 s->thread_info.soft_muted);
1168 pa_memblock_release(result->memblock);
1173 inputs_drop(s, info, n, result);
1178 /* Called from IO thread context */
1179 void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
1180 pa_mix_info info[MAX_MIX_CHANNELS];
1182 size_t length, block_size_max;
1184 pa_sink_assert_ref(s);
1185 pa_sink_assert_io_context(s);
1186 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1188 pa_assert(target->memblock);
1189 pa_assert(target->length > 0);
1190 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1192 pa_assert(!s->thread_info.rewind_requested);
1193 pa_assert(s->thread_info.rewind_nbytes == 0);
1195 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1196 pa_silence_memchunk(target, &s->sample_spec);
1202 length = target->length;
1203 block_size_max = pa_mempool_block_size_max(s->core->mempool);
1204 if (length > block_size_max)
1205 length = pa_frame_align(block_size_max, &s->sample_spec);
1207 pa_assert(length > 0);
1209 n = fill_mix_info(s, &length, info, MAX_MIX_CHANNELS);
1212 if (target->length > length)
1213 target->length = length;
1215 pa_silence_memchunk(target, &s->sample_spec);
1216 } else if (n == 1) {
1219 if (target->length > length)
1220 target->length = length;
1222 pa_sw_cvolume_multiply(&volume, &s->thread_info.soft_volume, &info[0].volume);
1224 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&volume))
1225 pa_silence_memchunk(target, &s->sample_spec);
1229 vchunk = info[0].chunk;
1230 pa_memblock_ref(vchunk.memblock);
1232 if (vchunk.length > length)
1233 vchunk.length = length;
1235 if (!pa_cvolume_is_norm(&volume)) {
1236 pa_memchunk_make_writable(&vchunk, 0);
1237 pa_volume_memchunk(&vchunk, &s->sample_spec, &volume);
1240 pa_memchunk_memcpy(target, &vchunk);
1241 pa_memblock_unref(vchunk.memblock);
1247 ptr = pa_memblock_acquire(target->memblock);
1249 target->length = pa_mix(info, n,
1250 (uint8_t*) ptr + target->index, length,
1252 &s->thread_info.soft_volume,
1253 s->thread_info.soft_muted);
1255 pa_memblock_release(target->memblock);
1258 inputs_drop(s, info, n, target);
1263 /* Called from IO thread context */
1264 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
1268 pa_sink_assert_ref(s);
1269 pa_sink_assert_io_context(s);
1270 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1272 pa_assert(target->memblock);
1273 pa_assert(target->length > 0);
1274 pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
1276 pa_assert(!s->thread_info.rewind_requested);
1277 pa_assert(s->thread_info.rewind_nbytes == 0);
1279 if (s->thread_info.state == PA_SINK_SUSPENDED) {
1280 pa_silence_memchunk(target, &s->sample_spec);
1293 pa_sink_render_into(s, &chunk);
1302 /* Called from IO thread context */
1303 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
1304 pa_sink_assert_ref(s);
1305 pa_sink_assert_io_context(s);
1306 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1307 pa_assert(length > 0);
1308 pa_assert(pa_frame_aligned(length, &s->sample_spec));
1311 pa_assert(!s->thread_info.rewind_requested);
1312 pa_assert(s->thread_info.rewind_nbytes == 0);
1316 pa_sink_render(s, length, result);
1318 if (result->length < length) {
1321 pa_memchunk_make_writable(result, length);
1323 chunk.memblock = result->memblock;
1324 chunk.index = result->index + result->length;
1325 chunk.length = length - result->length;
1327 pa_sink_render_into_full(s, &chunk);
1329 result->length = length;
1335 /* Called from main thread */
1336 pa_bool_t pa_sink_update_rate(pa_sink *s, uint32_t rate, pa_bool_t passthrough)
1338 if (s->update_rate) {
1339 uint32_t desired_rate = rate;
1340 uint32_t default_rate = s->default_sample_rate;
1341 uint32_t alternate_rate = s->alternate_sample_rate;
1342 pa_bool_t use_alternate = FALSE;
1344 if (PA_UNLIKELY(default_rate == alternate_rate)) {
1345 pa_log_warn("Default and alternate sample rates are the same.");
1349 if (PA_SINK_IS_RUNNING(s->state)) {
1350 pa_log_info("Cannot update rate, SINK_IS_RUNNING, will keep using %u kHz",
1351 s->sample_spec.rate);
1355 if (s->monitor_source) {
1356 if (PA_SOURCE_IS_RUNNING(s->monitor_source->state) == TRUE) {
1357 pa_log_info("Cannot update rate, monitor source is RUNNING");
1362 if (PA_UNLIKELY (desired_rate < 8000 ||
1363 desired_rate > PA_RATE_MAX))
1367 pa_assert(default_rate % 4000 || default_rate % 11025);
1368 pa_assert(alternate_rate % 4000 || alternate_rate % 11025);
1370 if (default_rate % 4000) {
1371 /* default is a 11025 multiple */
1372 if ((alternate_rate % 4000 == 0) && (desired_rate % 4000 == 0))
1375 /* default is 4000 multiple */
1376 if ((alternate_rate % 11025 == 0) && (desired_rate % 11025 == 0))
1381 desired_rate = alternate_rate;
1383 desired_rate = default_rate;
1385 desired_rate = rate; /* use stream sampling rate, discard default/alternate settings */
1388 if (!passthrough && pa_sink_linked_by(s) > 0)
1391 pa_sink_suspend(s, TRUE, PA_SUSPEND_IDLE); /* needed before rate update, will be resumed automatically */
1393 if (s->update_rate(s, desired_rate) == TRUE) {
1394 /* update monitor source as well */
1395 if (s->monitor_source && !passthrough)
1396 pa_source_update_rate(s->monitor_source, desired_rate, FALSE);
1397 pa_log_info("Changed sampling rate successfully");
1404 /* Called from main thread */
1405 pa_usec_t pa_sink_get_latency(pa_sink *s) {
1408 pa_sink_assert_ref(s);
1409 pa_assert_ctl_context();
1410 pa_assert(PA_SINK_IS_LINKED(s->state));
1412 /* The returned value is supposed to be in the time domain of the sound card! */
1414 if (s->state == PA_SINK_SUSPENDED)
1417 if (!(s->flags & PA_SINK_LATENCY))
1420 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1425 /* Called from IO thread */
1426 pa_usec_t pa_sink_get_latency_within_thread(pa_sink *s) {
1430 pa_sink_assert_ref(s);
1431 pa_sink_assert_io_context(s);
1432 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
1434 /* The returned value is supposed to be in the time domain of the sound card! */
1436 if (s->thread_info.state == PA_SINK_SUSPENDED)
1439 if (!(s->flags & PA_SINK_LATENCY))
1442 o = PA_MSGOBJECT(s);
1444 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1446 if (o->process_msg(o, PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1452 /* Called from the main thread (and also from the IO thread while the main
1453 * thread is waiting).
1455 * When a sink uses volume sharing, it never has the PA_SINK_FLAT_VOLUME flag
1456 * set. Instead, flat volume mode is detected by checking whether the root sink
1457 * has the flag set. */
1458 pa_bool_t pa_sink_flat_volume_enabled(pa_sink *s) {
1459 pa_sink_assert_ref(s);
1461 s = pa_sink_get_master(s);
1464 return (s->flags & PA_SINK_FLAT_VOLUME);
1469 /* Called from the main thread (and also from the IO thread while the main
1470 * thread is waiting). */
1471 pa_sink *pa_sink_get_master(pa_sink *s) {
1472 pa_sink_assert_ref(s);
1474 while (s && (s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1475 if (PA_UNLIKELY(!s->input_to_master))
1478 s = s->input_to_master->sink;
1484 /* Called from main context */
1485 pa_bool_t pa_sink_is_passthrough(pa_sink *s) {
1486 pa_sink_input *alt_i;
1489 pa_sink_assert_ref(s);
1491 /* one and only one PASSTHROUGH input can possibly be connected */
1492 if (pa_idxset_size(s->inputs) == 1) {
1493 alt_i = pa_idxset_first(s->inputs, &idx);
1495 if (pa_sink_input_is_passthrough(alt_i))
1502 /* Called from main context */
1503 void pa_sink_enter_passthrough(pa_sink *s) {
1506 /* disable the monitor in passthrough mode */
1507 if (s->monitor_source)
1508 pa_source_suspend(s->monitor_source, TRUE, PA_SUSPEND_PASSTHROUGH);
1510 /* set the volume to NORM */
1511 s->saved_volume = *pa_sink_get_volume(s, TRUE);
1512 s->saved_save_volume = s->save_volume;
1514 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1515 pa_sink_set_volume(s, &volume, TRUE, FALSE);
1518 /* Called from main context */
1519 void pa_sink_leave_passthrough(pa_sink *s) {
1520 /* Unsuspend monitor */
1521 if (s->monitor_source)
1522 pa_source_suspend(s->monitor_source, FALSE, PA_SUSPEND_PASSTHROUGH);
1524 /* Restore sink volume to what it was before we entered passthrough mode */
1525 pa_sink_set_volume(s, &s->saved_volume, TRUE, s->saved_save_volume);
1527 pa_cvolume_init(&s->saved_volume);
1528 s->saved_save_volume = FALSE;
1531 /* Called from main context. */
1532 static void compute_reference_ratio(pa_sink_input *i) {
1534 pa_cvolume remapped;
1537 pa_assert(pa_sink_flat_volume_enabled(i->sink));
1540 * Calculates the reference ratio from the sink's reference
1541 * volume. This basically calculates:
1543 * i->reference_ratio = i->volume / i->sink->reference_volume
1546 remapped = i->sink->reference_volume;
1547 pa_cvolume_remap(&remapped, &i->sink->channel_map, &i->channel_map);
1549 i->reference_ratio.channels = i->sample_spec.channels;
1551 for (c = 0; c < i->sample_spec.channels; c++) {
1553 /* We don't update when the sink volume is 0 anyway */
1554 if (remapped.values[c] <= PA_VOLUME_MUTED)
1557 /* Don't update the reference ratio unless necessary */
1558 if (pa_sw_volume_multiply(
1559 i->reference_ratio.values[c],
1560 remapped.values[c]) == i->volume.values[c])
1563 i->reference_ratio.values[c] = pa_sw_volume_divide(
1564 i->volume.values[c],
1565 remapped.values[c]);
1569 /* Called from main context. Only called for the root sink in volume sharing
1570 * cases, except for internal recursive calls. */
1571 static void compute_reference_ratios(pa_sink *s) {
1575 pa_sink_assert_ref(s);
1576 pa_assert_ctl_context();
1577 pa_assert(PA_SINK_IS_LINKED(s->state));
1578 pa_assert(pa_sink_flat_volume_enabled(s));
1580 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1581 compute_reference_ratio(i);
1583 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1584 compute_reference_ratios(i->origin_sink);
1588 /* Called from main context. Only called for the root sink in volume sharing
1589 * cases, except for internal recursive calls. */
1590 static void compute_real_ratios(pa_sink *s) {
1594 pa_sink_assert_ref(s);
1595 pa_assert_ctl_context();
1596 pa_assert(PA_SINK_IS_LINKED(s->state));
1597 pa_assert(pa_sink_flat_volume_enabled(s));
1599 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1601 pa_cvolume remapped;
1603 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1604 /* The origin sink uses volume sharing, so this input's real ratio
1605 * is handled as a special case - the real ratio must be 0 dB, and
1606 * as a result i->soft_volume must equal i->volume_factor. */
1607 pa_cvolume_reset(&i->real_ratio, i->real_ratio.channels);
1608 i->soft_volume = i->volume_factor;
1610 compute_real_ratios(i->origin_sink);
1616 * This basically calculates:
1618 * i->real_ratio := i->volume / s->real_volume
1619 * i->soft_volume := i->real_ratio * i->volume_factor
1622 remapped = s->real_volume;
1623 pa_cvolume_remap(&remapped, &s->channel_map, &i->channel_map);
1625 i->real_ratio.channels = i->sample_spec.channels;
1626 i->soft_volume.channels = i->sample_spec.channels;
1628 for (c = 0; c < i->sample_spec.channels; c++) {
1630 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1631 /* We leave i->real_ratio untouched */
1632 i->soft_volume.values[c] = PA_VOLUME_MUTED;
1636 /* Don't lose accuracy unless necessary */
1637 if (pa_sw_volume_multiply(
1638 i->real_ratio.values[c],
1639 remapped.values[c]) != i->volume.values[c])
1641 i->real_ratio.values[c] = pa_sw_volume_divide(
1642 i->volume.values[c],
1643 remapped.values[c]);
1645 i->soft_volume.values[c] = pa_sw_volume_multiply(
1646 i->real_ratio.values[c],
1647 i->volume_factor.values[c]);
1650 /* We don't copy the soft_volume to the thread_info data
1651 * here. That must be done by the caller */
1655 static pa_cvolume *cvolume_remap_minimal_impact(
1657 const pa_cvolume *template,
1658 const pa_channel_map *from,
1659 const pa_channel_map *to) {
1664 pa_assert(template);
1667 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1668 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1670 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1671 * mapping from sink input to sink volumes:
1673 * If template is a possible remapping from v it is used instead
1674 * of remapping anew.
1676 * If the channel maps don't match we set an all-channel volume on
1677 * the sink to ensure that changing a volume on one stream has no
1678 * effect that cannot be compensated for in another stream that
1679 * does not have the same channel map as the sink. */
1681 if (pa_channel_map_equal(from, to))
1685 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1690 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1694 /* Called from main thread. Only called for the root sink in volume sharing
1695 * cases, except for internal recursive calls. */
1696 static void get_maximum_input_volume(pa_sink *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1700 pa_sink_assert_ref(s);
1701 pa_assert(max_volume);
1702 pa_assert(channel_map);
1703 pa_assert(pa_sink_flat_volume_enabled(s));
1705 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1706 pa_cvolume remapped;
1708 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1709 get_maximum_input_volume(i->origin_sink, max_volume, channel_map);
1711 /* Ignore this input. The origin sink uses volume sharing, so this
1712 * input's volume will be set to be equal to the root sink's real
1713 * volume. Obviously this input's current volume must not then
1714 * affect what the root sink's real volume will be. */
1718 remapped = i->volume;
1719 cvolume_remap_minimal_impact(&remapped, max_volume, &i->channel_map, channel_map);
1720 pa_cvolume_merge(max_volume, max_volume, &remapped);
1724 /* Called from main thread. Only called for the root sink in volume sharing
1725 * cases, except for internal recursive calls. */
1726 static pa_bool_t has_inputs(pa_sink *s) {
1730 pa_sink_assert_ref(s);
1732 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1733 if (!i->origin_sink || !(i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || has_inputs(i->origin_sink))
1740 /* Called from main thread. Only called for the root sink in volume sharing
1741 * cases, except for internal recursive calls. */
1742 static void update_real_volume(pa_sink *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1746 pa_sink_assert_ref(s);
1747 pa_assert(new_volume);
1748 pa_assert(channel_map);
1750 s->real_volume = *new_volume;
1751 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1753 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1754 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1755 if (pa_sink_flat_volume_enabled(s)) {
1756 pa_cvolume old_volume = i->volume;
1758 /* Follow the root sink's real volume. */
1759 i->volume = *new_volume;
1760 pa_cvolume_remap(&i->volume, channel_map, &i->channel_map);
1761 compute_reference_ratio(i);
1763 /* The volume changed, let's tell people so */
1764 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1765 if (i->volume_changed)
1766 i->volume_changed(i);
1768 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1772 update_real_volume(i->origin_sink, new_volume, channel_map);
1777 /* Called from main thread. Only called for the root sink in shared volume
1779 static void compute_real_volume(pa_sink *s) {
1780 pa_sink_assert_ref(s);
1781 pa_assert_ctl_context();
1782 pa_assert(PA_SINK_IS_LINKED(s->state));
1783 pa_assert(pa_sink_flat_volume_enabled(s));
1784 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
1786 /* This determines the maximum volume of all streams and sets
1787 * s->real_volume accordingly. */
1789 if (!has_inputs(s)) {
1790 /* In the special case that we have no sink inputs we leave the
1791 * volume unmodified. */
1792 update_real_volume(s, &s->reference_volume, &s->channel_map);
1796 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1798 /* First let's determine the new maximum volume of all inputs
1799 * connected to this sink */
1800 get_maximum_input_volume(s, &s->real_volume, &s->channel_map);
1801 update_real_volume(s, &s->real_volume, &s->channel_map);
1803 /* Then, let's update the real ratios/soft volumes of all inputs
1804 * connected to this sink */
1805 compute_real_ratios(s);
1808 /* Called from main thread. Only called for the root sink in shared volume
1809 * cases, except for internal recursive calls. */
1810 static void propagate_reference_volume(pa_sink *s) {
1814 pa_sink_assert_ref(s);
1815 pa_assert_ctl_context();
1816 pa_assert(PA_SINK_IS_LINKED(s->state));
1817 pa_assert(pa_sink_flat_volume_enabled(s));
1819 /* This is called whenever the sink volume changes that is not
1820 * caused by a sink input volume change. We need to fix up the
1821 * sink input volumes accordingly */
1823 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1824 pa_cvolume old_volume;
1826 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1827 propagate_reference_volume(i->origin_sink);
1829 /* Since the origin sink uses volume sharing, this input's volume
1830 * needs to be updated to match the root sink's real volume, but
1831 * that will be done later in update_shared_real_volume(). */
1835 old_volume = i->volume;
1837 /* This basically calculates:
1839 * i->volume := s->reference_volume * i->reference_ratio */
1841 i->volume = s->reference_volume;
1842 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
1843 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
1845 /* The volume changed, let's tell people so */
1846 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
1848 if (i->volume_changed)
1849 i->volume_changed(i);
1851 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1856 /* Called from main thread. Only called for the root sink in volume sharing
1857 * cases, except for internal recursive calls. The return value indicates
1858 * whether any reference volume actually changed. */
1859 static pa_bool_t update_reference_volume(pa_sink *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1861 pa_bool_t reference_volume_changed;
1865 pa_sink_assert_ref(s);
1866 pa_assert(PA_SINK_IS_LINKED(s->state));
1868 pa_assert(channel_map);
1869 pa_assert(pa_cvolume_valid(v));
1872 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1874 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1875 s->reference_volume = volume;
1877 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1879 if (reference_volume_changed)
1880 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1881 else if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1882 /* If the root sink's volume doesn't change, then there can't be any
1883 * changes in the other sinks in the sink tree either.
1885 * It's probably theoretically possible that even if the root sink's
1886 * volume changes slightly, some filter sink doesn't change its volume
1887 * due to rounding errors. If that happens, we still want to propagate
1888 * the changed root sink volume to the sinks connected to the
1889 * intermediate sink that didn't change its volume. This theoretical
1890 * possibility is the reason why we have that !(s->flags &
1891 * PA_SINK_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1892 * notice even if we returned here FALSE always if
1893 * reference_volume_changed is FALSE. */
1896 PA_IDXSET_FOREACH(i, s->inputs, idx) {
1897 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
1898 update_reference_volume(i->origin_sink, v, channel_map, FALSE);
1904 /* Called from main thread */
1905 void pa_sink_set_volume(
1907 const pa_cvolume *volume,
1911 pa_cvolume new_reference_volume;
1914 pa_sink_assert_ref(s);
1915 pa_assert_ctl_context();
1916 pa_assert(PA_SINK_IS_LINKED(s->state));
1917 pa_assert(!volume || pa_cvolume_valid(volume));
1918 pa_assert(volume || pa_sink_flat_volume_enabled(s));
1919 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1921 /* make sure we don't change the volume when a PASSTHROUGH input is connected ...
1922 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1923 if (pa_sink_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1924 pa_log_warn("Cannot change volume, Sink is connected to PASSTHROUGH input");
1928 /* In case of volume sharing, the volume is set for the root sink first,
1929 * from which it's then propagated to the sharing sinks. */
1930 root_sink = pa_sink_get_master(s);
1932 if (PA_UNLIKELY(!root_sink))
1935 /* As a special exception we accept mono volumes on all sinks --
1936 * even on those with more complex channel maps */
1939 if (pa_cvolume_compatible(volume, &s->sample_spec))
1940 new_reference_volume = *volume;
1942 new_reference_volume = s->reference_volume;
1943 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1946 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
1948 if (update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save)) {
1949 if (pa_sink_flat_volume_enabled(root_sink)) {
1950 /* OK, propagate this volume change back to the inputs */
1951 propagate_reference_volume(root_sink);
1953 /* And now recalculate the real volume */
1954 compute_real_volume(root_sink);
1956 update_real_volume(root_sink, &root_sink->reference_volume, &root_sink->channel_map);
1960 /* If volume is NULL we synchronize the sink's real and
1961 * reference volumes with the stream volumes. */
1963 pa_assert(pa_sink_flat_volume_enabled(root_sink));
1965 /* Ok, let's determine the new real volume */
1966 compute_real_volume(root_sink);
1968 /* Let's 'push' the reference volume if necessary */
1969 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_sink->real_volume);
1970 /* If the sink and it's root don't have the same number of channels, we need to remap */
1971 if (s != root_sink && !pa_channel_map_equal(&s->channel_map, &root_sink->channel_map))
1972 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_sink->channel_map);
1973 update_reference_volume(root_sink, &new_reference_volume, &root_sink->channel_map, save);
1975 /* Now that the reference volume is updated, we can update the streams'
1976 * reference ratios. */
1977 compute_reference_ratios(root_sink);
1980 if (root_sink->set_volume) {
1981 /* If we have a function set_volume(), then we do not apply a
1982 * soft volume by default. However, set_volume() is free to
1983 * apply one to root_sink->soft_volume */
1985 pa_cvolume_reset(&root_sink->soft_volume, root_sink->sample_spec.channels);
1986 if (!(root_sink->flags & PA_SINK_DEFERRED_VOLUME))
1987 root_sink->set_volume(root_sink);
1990 /* If we have no function set_volume(), then the soft volume
1991 * becomes the real volume */
1992 root_sink->soft_volume = root_sink->real_volume;
1994 /* This tells the sink that soft volume and/or real volume changed */
1996 pa_assert_se(pa_asyncmsgq_send(root_sink->asyncmsgq, PA_MSGOBJECT(root_sink), PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1999 /* Called from the io thread if sync volume is used, otherwise from the main thread.
2000 * Only to be called by sink implementor */
2001 void pa_sink_set_soft_volume(pa_sink *s, const pa_cvolume *volume) {
2003 pa_sink_assert_ref(s);
2004 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2006 if (s->flags & PA_SINK_DEFERRED_VOLUME)
2007 pa_sink_assert_io_context(s);
2009 pa_assert_ctl_context();
2012 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
2014 s->soft_volume = *volume;
2016 if (PA_SINK_IS_LINKED(s->state) && !(s->flags & PA_SINK_DEFERRED_VOLUME))
2017 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
2019 s->thread_info.soft_volume = s->soft_volume;
2022 /* Called from the main thread. Only called for the root sink in volume sharing
2023 * cases, except for internal recursive calls. */
2024 static void propagate_real_volume(pa_sink *s, const pa_cvolume *old_real_volume) {
2028 pa_sink_assert_ref(s);
2029 pa_assert(old_real_volume);
2030 pa_assert_ctl_context();
2031 pa_assert(PA_SINK_IS_LINKED(s->state));
2033 /* This is called when the hardware's real volume changes due to
2034 * some external event. We copy the real volume into our
2035 * reference volume and then rebuild the stream volumes based on
2036 * i->real_ratio which should stay fixed. */
2038 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
2039 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
2042 /* 1. Make the real volume the reference volume */
2043 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
2046 if (pa_sink_flat_volume_enabled(s)) {
2048 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2049 pa_cvolume old_volume = i->volume;
2051 /* 2. Since the sink's reference and real volumes are equal
2052 * now our ratios should be too. */
2053 i->reference_ratio = i->real_ratio;
2055 /* 3. Recalculate the new stream reference volume based on the
2056 * reference ratio and the sink's reference volume.
2058 * This basically calculates:
2060 * i->volume = s->reference_volume * i->reference_ratio
2062 * This is identical to propagate_reference_volume() */
2063 i->volume = s->reference_volume;
2064 pa_cvolume_remap(&i->volume, &s->channel_map, &i->channel_map);
2065 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
2067 /* Notify if something changed */
2068 if (!pa_cvolume_equal(&old_volume, &i->volume)) {
2070 if (i->volume_changed)
2071 i->volume_changed(i);
2073 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
2076 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2077 propagate_real_volume(i->origin_sink, old_real_volume);
2081 /* Something got changed in the hardware. It probably makes sense
2082 * to save changed hw settings given that hw volume changes not
2083 * triggered by PA are almost certainly done by the user. */
2084 if (!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2085 s->save_volume = TRUE;
2088 /* Called from io thread */
2089 void pa_sink_update_volume_and_mute(pa_sink *s) {
2091 pa_sink_assert_io_context(s);
2093 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
2096 /* Called from main thread */
2097 const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_bool_t force_refresh) {
2098 pa_sink_assert_ref(s);
2099 pa_assert_ctl_context();
2100 pa_assert(PA_SINK_IS_LINKED(s->state));
2102 if (s->refresh_volume || force_refresh) {
2103 struct pa_cvolume old_real_volume;
2105 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2107 old_real_volume = s->real_volume;
2109 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume)
2112 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
2114 update_real_volume(s, &s->real_volume, &s->channel_map);
2115 propagate_real_volume(s, &old_real_volume);
2118 return &s->reference_volume;
2121 /* Called from main thread. In volume sharing cases, only the root sink may
2123 void pa_sink_volume_changed(pa_sink *s, const pa_cvolume *new_real_volume) {
2124 pa_cvolume old_real_volume;
2126 pa_sink_assert_ref(s);
2127 pa_assert_ctl_context();
2128 pa_assert(PA_SINK_IS_LINKED(s->state));
2129 pa_assert(!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER));
2131 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2133 old_real_volume = s->real_volume;
2134 update_real_volume(s, new_real_volume, &s->channel_map);
2135 propagate_real_volume(s, &old_real_volume);
2138 /* Called from main thread */
2139 void pa_sink_set_mute(pa_sink *s, pa_bool_t mute, pa_bool_t save) {
2140 pa_bool_t old_muted;
2142 pa_sink_assert_ref(s);
2143 pa_assert_ctl_context();
2144 pa_assert(PA_SINK_IS_LINKED(s->state));
2146 old_muted = s->muted;
2148 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
2150 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->set_mute)
2153 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2155 if (old_muted != s->muted)
2156 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2159 /* Called from main thread */
2160 pa_bool_t pa_sink_get_mute(pa_sink *s, pa_bool_t force_refresh) {
2162 pa_sink_assert_ref(s);
2163 pa_assert_ctl_context();
2164 pa_assert(PA_SINK_IS_LINKED(s->state));
2166 if (s->refresh_muted || force_refresh) {
2167 pa_bool_t old_muted = s->muted;
2169 if (!(s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_mute)
2172 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
2174 if (old_muted != s->muted) {
2175 s->save_muted = TRUE;
2177 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2179 /* Make sure the soft mute status stays in sync */
2180 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
2187 /* Called from main thread */
2188 void pa_sink_mute_changed(pa_sink *s, pa_bool_t new_muted) {
2189 pa_sink_assert_ref(s);
2190 pa_assert_ctl_context();
2191 pa_assert(PA_SINK_IS_LINKED(s->state));
2193 /* The sink implementor may call this if the volume changed to make sure everyone is notified */
2195 if (s->muted == new_muted)
2198 s->muted = new_muted;
2199 s->save_muted = TRUE;
2201 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2204 /* Called from main thread */
2205 pa_bool_t pa_sink_update_proplist(pa_sink *s, pa_update_mode_t mode, pa_proplist *p) {
2206 pa_sink_assert_ref(s);
2207 pa_assert_ctl_context();
2210 pa_proplist_update(s->proplist, mode, p);
2212 if (PA_SINK_IS_LINKED(s->state)) {
2213 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2214 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2220 /* Called from main thread */
2221 /* FIXME -- this should be dropped and be merged into pa_sink_update_proplist() */
2222 void pa_sink_set_description(pa_sink *s, const char *description) {
2224 pa_sink_assert_ref(s);
2225 pa_assert_ctl_context();
2227 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
2230 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2232 if (old && description && pa_streq(old, description))
2236 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
2238 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
2240 if (s->monitor_source) {
2243 n = pa_sprintf_malloc("Monitor Source of %s", description ? description : s->name);
2244 pa_source_set_description(s->monitor_source, n);
2248 if (PA_SINK_IS_LINKED(s->state)) {
2249 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2250 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], s);
2254 /* Called from main thread */
2255 unsigned pa_sink_linked_by(pa_sink *s) {
2258 pa_sink_assert_ref(s);
2259 pa_assert_ctl_context();
2260 pa_assert(PA_SINK_IS_LINKED(s->state));
2262 ret = pa_idxset_size(s->inputs);
2264 /* We add in the number of streams connected to us here. Please
2265 * note the asymmetry to pa_sink_used_by()! */
2267 if (s->monitor_source)
2268 ret += pa_source_linked_by(s->monitor_source);
2273 /* Called from main thread */
2274 unsigned pa_sink_used_by(pa_sink *s) {
2277 pa_sink_assert_ref(s);
2278 pa_assert_ctl_context();
2279 pa_assert(PA_SINK_IS_LINKED(s->state));
2281 ret = pa_idxset_size(s->inputs);
2282 pa_assert(ret >= s->n_corked);
2284 /* Streams connected to our monitor source do not matter for
2285 * pa_sink_used_by()!.*/
2287 return ret - s->n_corked;
2290 /* Called from main thread */
2291 unsigned pa_sink_check_suspend(pa_sink *s) {
2296 pa_sink_assert_ref(s);
2297 pa_assert_ctl_context();
2299 if (!PA_SINK_IS_LINKED(s->state))
2304 PA_IDXSET_FOREACH(i, s->inputs, idx) {
2305 pa_sink_input_state_t st;
2307 st = pa_sink_input_get_state(i);
2309 /* We do not assert here. It is perfectly valid for a sink input to
2310 * be in the INIT state (i.e. created, marked done but not yet put)
2311 * and we should not care if it's unlinked as it won't contribute
2312 * towards our busy status.
2314 if (!PA_SINK_INPUT_IS_LINKED(st))
2317 if (st == PA_SINK_INPUT_CORKED)
2320 if (i->flags & PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND)
2326 if (s->monitor_source)
2327 ret += pa_source_check_suspend(s->monitor_source);
2332 /* Called from the IO thread */
2333 static void sync_input_volumes_within_thread(pa_sink *s) {
2337 pa_sink_assert_ref(s);
2338 pa_sink_assert_io_context(s);
2340 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2341 if (pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume))
2344 i->thread_info.soft_volume = i->soft_volume;
2345 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
2349 /* Called from the IO thread. Only called for the root sink in volume sharing
2350 * cases, except for internal recursive calls. */
2351 static void set_shared_volume_within_thread(pa_sink *s) {
2352 pa_sink_input *i = NULL;
2355 pa_sink_assert_ref(s);
2357 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2359 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state) {
2360 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
2361 set_shared_volume_within_thread(i->origin_sink);
2365 /* Called from IO thread, except when it is not */
2366 int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2367 pa_sink *s = PA_SINK(o);
2368 pa_sink_assert_ref(s);
2370 switch ((pa_sink_message_t) code) {
2372 case PA_SINK_MESSAGE_ADD_INPUT: {
2373 pa_sink_input *i = PA_SINK_INPUT(userdata);
2375 /* If you change anything here, make sure to change the
2376 * sink input handling a few lines down at
2377 * PA_SINK_MESSAGE_FINISH_MOVE, too. */
2379 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2381 /* Since the caller sleeps in pa_sink_input_put(), we can
2382 * safely access data outside of thread_info even though
2385 if ((i->thread_info.sync_prev = i->sync_prev)) {
2386 pa_assert(i->sink == i->thread_info.sync_prev->sink);
2387 pa_assert(i->sync_prev->sync_next == i);
2388 i->thread_info.sync_prev->thread_info.sync_next = i;
2391 if ((i->thread_info.sync_next = i->sync_next)) {
2392 pa_assert(i->sink == i->thread_info.sync_next->sink);
2393 pa_assert(i->sync_next->sync_prev == i);
2394 i->thread_info.sync_next->thread_info.sync_prev = i;
2397 pa_assert(!i->thread_info.attached);
2398 i->thread_info.attached = TRUE;
2403 pa_sink_input_set_state_within_thread(i, i->state);
2405 /* The requested latency of the sink input needs to be
2406 * fixed up and then configured on the sink */
2408 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2409 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2411 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2412 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2414 /* We don't rewind here automatically. This is left to the
2415 * sink input implementor because some sink inputs need a
2416 * slow start, i.e. need some time to buffer client
2417 * samples before beginning streaming. */
2419 /* FIXME: Actually rewinding should be requested before
2420 * updating the sink requested latency, because updating
2421 * the requested latency updates also max_rewind of the
2422 * sink. Now consider this: a sink has a 10 s buffer and
2423 * nobody has requested anything less. Then a new stream
2424 * appears while the sink buffer is full. The new stream
2425 * requests e.g. 100 ms latency. That request is forwarded
2426 * to the sink, so now max_rewind is 100 ms. When a rewind
2427 * is requested, the sink will only rewind 100 ms, and the
2428 * new stream will have to wait about 10 seconds before it
2429 * becomes audible. */
2431 /* In flat volume mode we need to update the volume as
2433 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2436 case PA_SINK_MESSAGE_REMOVE_INPUT: {
2437 pa_sink_input *i = PA_SINK_INPUT(userdata);
2439 /* If you change anything here, make sure to change the
2440 * sink input handling a few lines down at
2441 * PA_SINK_MESSAGE_START_MOVE, too. */
2446 pa_sink_input_set_state_within_thread(i, i->state);
2448 pa_assert(i->thread_info.attached);
2449 i->thread_info.attached = FALSE;
2451 /* Since the caller sleeps in pa_sink_input_unlink(),
2452 * we can safely access data outside of thread_info even
2453 * though it is mutable */
2455 pa_assert(!i->sync_prev);
2456 pa_assert(!i->sync_next);
2458 if (i->thread_info.sync_prev) {
2459 i->thread_info.sync_prev->thread_info.sync_next = i->thread_info.sync_prev->sync_next;
2460 i->thread_info.sync_prev = NULL;
2463 if (i->thread_info.sync_next) {
2464 i->thread_info.sync_next->thread_info.sync_prev = i->thread_info.sync_next->sync_prev;
2465 i->thread_info.sync_next = NULL;
2468 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2469 pa_sink_input_unref(i);
2471 pa_sink_invalidate_requested_latency(s, TRUE);
2472 pa_sink_request_rewind(s, (size_t) -1);
2474 /* In flat volume mode we need to update the volume as
2476 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2479 case PA_SINK_MESSAGE_START_MOVE: {
2480 pa_sink_input *i = PA_SINK_INPUT(userdata);
2482 /* We don't support moving synchronized streams. */
2483 pa_assert(!i->sync_prev);
2484 pa_assert(!i->sync_next);
2485 pa_assert(!i->thread_info.sync_next);
2486 pa_assert(!i->thread_info.sync_prev);
2488 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2490 size_t sink_nbytes, total_nbytes;
2492 /* The old sink probably has some audio from this
2493 * stream in its buffer. We want to "take it back" as
2494 * much as possible and play it to the new sink. We
2495 * don't know at this point how much the old sink can
2496 * rewind. We have to pick something, and that
2497 * something is the full latency of the old sink here.
2498 * So we rewind the stream buffer by the sink latency
2499 * amount, which may be more than what we should
2500 * rewind. This can result in a chunk of audio being
2501 * played both to the old sink and the new sink.
2503 * FIXME: Fix this code so that we don't have to make
2504 * guesses about how much the sink will actually be
2505 * able to rewind. If someone comes up with a solution
2506 * for this, something to note is that the part of the
2507 * latency that the old sink couldn't rewind should
2508 * ideally be compensated after the stream has moved
2509 * to the new sink by adding silence. The new sink
2510 * most likely can't start playing the moved stream
2511 * immediately, and that gap should be removed from
2512 * the "compensation silence" (at least at the time of
2513 * writing this, the move finish code will actually
2514 * already take care of dropping the new sink's
2515 * unrewindable latency, so taking into account the
2516 * unrewindable latency of the old sink is the only
2519 * The render_memblockq contents are discarded,
2520 * because when the sink changes, the format of the
2521 * audio stored in the render_memblockq may change
2522 * too, making the stored audio invalid. FIXME:
2523 * However, the read and write indices are moved back
2524 * the same amount, so if they are not the same now,
2525 * they won't be the same after the rewind either. If
2526 * the write index of the render_memblockq is ahead of
2527 * the read index, then the render_memblockq will feed
2528 * the new sink some silence first, which it shouldn't
2529 * do. The write index should be flushed to be the
2530 * same as the read index. */
2532 /* Get the latency of the sink */
2533 usec = pa_sink_get_latency_within_thread(s);
2534 sink_nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2535 total_nbytes = sink_nbytes + pa_memblockq_get_length(i->thread_info.render_memblockq);
2537 if (total_nbytes > 0) {
2538 i->thread_info.rewrite_nbytes = i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, total_nbytes) : total_nbytes;
2539 i->thread_info.rewrite_flush = TRUE;
2540 pa_sink_input_process_rewind(i, sink_nbytes);
2547 pa_assert(i->thread_info.attached);
2548 i->thread_info.attached = FALSE;
2550 /* Let's remove the sink input ...*/
2551 if (pa_hashmap_remove(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index)))
2552 pa_sink_input_unref(i);
2554 pa_sink_invalidate_requested_latency(s, TRUE);
2556 pa_log_debug("Requesting rewind due to started move");
2557 pa_sink_request_rewind(s, (size_t) -1);
2559 /* In flat volume mode we need to update the volume as
2561 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2564 case PA_SINK_MESSAGE_FINISH_MOVE: {
2565 pa_sink_input *i = PA_SINK_INPUT(userdata);
2567 /* We don't support moving synchronized streams. */
2568 pa_assert(!i->sync_prev);
2569 pa_assert(!i->sync_next);
2570 pa_assert(!i->thread_info.sync_next);
2571 pa_assert(!i->thread_info.sync_prev);
2573 pa_hashmap_put(s->thread_info.inputs, PA_UINT32_TO_PTR(i->index), pa_sink_input_ref(i));
2575 pa_assert(!i->thread_info.attached);
2576 i->thread_info.attached = TRUE;
2581 if (i->thread_info.state != PA_SINK_INPUT_CORKED) {
2585 /* In the ideal case the new sink would start playing
2586 * the stream immediately. That requires the sink to
2587 * be able to rewind all of its latency, which usually
2588 * isn't possible, so there will probably be some gap
2589 * before the moved stream becomes audible. We then
2590 * have two possibilities: 1) start playing the stream
2591 * from where it is now, or 2) drop the unrewindable
2592 * latency of the sink from the stream. With option 1
2593 * we won't lose any audio but the stream will have a
2594 * pause. With option 2 we may lose some audio but the
2595 * stream time will be somewhat in sync with the wall
2596 * clock. Lennart seems to have chosen option 2 (one
2597 * of the reasons might have been that option 1 is
2598 * actually much harder to implement), so we drop the
2599 * latency of the new sink from the moved stream and
2600 * hope that the sink will undo most of that in the
2603 /* Get the latency of the sink */
2604 usec = pa_sink_get_latency_within_thread(s);
2605 nbytes = pa_usec_to_bytes(usec, &s->sample_spec);
2608 pa_sink_input_drop(i, nbytes);
2610 pa_log_debug("Requesting rewind due to finished move");
2611 pa_sink_request_rewind(s, nbytes);
2614 /* Updating the requested sink latency has to be done
2615 * after the sink rewind request, not before, because
2616 * otherwise the sink may limit the rewind amount
2619 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1)
2620 pa_sink_input_set_requested_latency_within_thread(i, i->thread_info.requested_sink_latency);
2622 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2623 pa_sink_input_update_max_request(i, s->thread_info.max_request);
2625 return o->process_msg(o, PA_SINK_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2628 case PA_SINK_MESSAGE_SET_SHARED_VOLUME: {
2629 pa_sink *root_sink = pa_sink_get_master(s);
2631 if (PA_LIKELY(root_sink))
2632 set_shared_volume_within_thread(root_sink);
2637 case PA_SINK_MESSAGE_SET_VOLUME_SYNCED:
2639 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
2641 pa_sink_volume_change_push(s);
2643 /* Fall through ... */
2645 case PA_SINK_MESSAGE_SET_VOLUME:
2647 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2648 s->thread_info.soft_volume = s->soft_volume;
2649 pa_sink_request_rewind(s, (size_t) -1);
2652 /* Fall through ... */
2654 case PA_SINK_MESSAGE_SYNC_VOLUMES:
2655 sync_input_volumes_within_thread(s);
2658 case PA_SINK_MESSAGE_GET_VOLUME:
2660 if ((s->flags & PA_SINK_DEFERRED_VOLUME) && s->get_volume) {
2662 pa_sink_volume_change_flush(s);
2663 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2666 /* In case sink implementor reset SW volume. */
2667 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2668 s->thread_info.soft_volume = s->soft_volume;
2669 pa_sink_request_rewind(s, (size_t) -1);
2674 case PA_SINK_MESSAGE_SET_MUTE:
2676 if (s->thread_info.soft_muted != s->muted) {
2677 s->thread_info.soft_muted = s->muted;
2678 pa_sink_request_rewind(s, (size_t) -1);
2681 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->set_mute)
2686 case PA_SINK_MESSAGE_GET_MUTE:
2688 if (s->flags & PA_SINK_DEFERRED_VOLUME && s->get_mute)
2693 case PA_SINK_MESSAGE_SET_STATE: {
2695 pa_bool_t suspend_change =
2696 (s->thread_info.state == PA_SINK_SUSPENDED && PA_SINK_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2697 (PA_SINK_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SINK_SUSPENDED);
2699 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2701 if (s->thread_info.state == PA_SINK_SUSPENDED) {
2702 s->thread_info.rewind_nbytes = 0;
2703 s->thread_info.rewind_requested = FALSE;
2706 if (suspend_change) {
2710 while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)))
2711 if (i->suspend_within_thread)
2712 i->suspend_within_thread(i, s->thread_info.state == PA_SINK_SUSPENDED);
2718 case PA_SINK_MESSAGE_DETACH:
2720 /* Detach all streams */
2721 pa_sink_detach_within_thread(s);
2724 case PA_SINK_MESSAGE_ATTACH:
2726 /* Reattach all streams */
2727 pa_sink_attach_within_thread(s);
2730 case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
2732 pa_usec_t *usec = userdata;
2733 *usec = pa_sink_get_requested_latency_within_thread(s);
2735 /* Yes, that's right, the IO thread will see -1 when no
2736 * explicit requested latency is configured, the main
2737 * thread will see max_latency */
2738 if (*usec == (pa_usec_t) -1)
2739 *usec = s->thread_info.max_latency;
2744 case PA_SINK_MESSAGE_SET_LATENCY_RANGE: {
2745 pa_usec_t *r = userdata;
2747 pa_sink_set_latency_range_within_thread(s, r[0], r[1]);
2752 case PA_SINK_MESSAGE_GET_LATENCY_RANGE: {
2753 pa_usec_t *r = userdata;
2755 r[0] = s->thread_info.min_latency;
2756 r[1] = s->thread_info.max_latency;
2761 case PA_SINK_MESSAGE_GET_FIXED_LATENCY:
2763 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2766 case PA_SINK_MESSAGE_SET_FIXED_LATENCY:
2768 pa_sink_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2771 case PA_SINK_MESSAGE_GET_MAX_REWIND:
2773 *((size_t*) userdata) = s->thread_info.max_rewind;
2776 case PA_SINK_MESSAGE_GET_MAX_REQUEST:
2778 *((size_t*) userdata) = s->thread_info.max_request;
2781 case PA_SINK_MESSAGE_SET_MAX_REWIND:
2783 pa_sink_set_max_rewind_within_thread(s, (size_t) offset);
2786 case PA_SINK_MESSAGE_SET_MAX_REQUEST:
2788 pa_sink_set_max_request_within_thread(s, (size_t) offset);
2791 case PA_SINK_MESSAGE_SET_PORT:
2793 pa_assert(userdata);
2795 struct sink_message_set_port *msg_data = userdata;
2796 msg_data->ret = s->set_port(s, msg_data->port);
2800 case PA_SINK_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2801 /* This message is sent from IO-thread and handled in main thread. */
2802 pa_assert_ctl_context();
2804 /* Make sure we're not messing with main thread when no longer linked */
2805 if (!PA_SINK_IS_LINKED(s->state))
2808 pa_sink_get_volume(s, TRUE);
2809 pa_sink_get_mute(s, TRUE);
2812 case PA_SINK_MESSAGE_GET_LATENCY:
2813 case PA_SINK_MESSAGE_MAX:
2820 /* Called from main thread */
2821 int pa_sink_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2826 pa_core_assert_ref(c);
2827 pa_assert_ctl_context();
2828 pa_assert(cause != 0);
2830 PA_IDXSET_FOREACH(sink, c->sinks, idx) {
2833 if ((r = pa_sink_suspend(sink, suspend, cause)) < 0)
2840 /* Called from main thread */
2841 void pa_sink_detach(pa_sink *s) {
2842 pa_sink_assert_ref(s);
2843 pa_assert_ctl_context();
2844 pa_assert(PA_SINK_IS_LINKED(s->state));
2846 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2849 /* Called from main thread */
2850 void pa_sink_attach(pa_sink *s) {
2851 pa_sink_assert_ref(s);
2852 pa_assert_ctl_context();
2853 pa_assert(PA_SINK_IS_LINKED(s->state));
2855 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2858 /* Called from IO thread */
2859 void pa_sink_detach_within_thread(pa_sink *s) {
2863 pa_sink_assert_ref(s);
2864 pa_sink_assert_io_context(s);
2865 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2867 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2871 if (s->monitor_source)
2872 pa_source_detach_within_thread(s->monitor_source);
2875 /* Called from IO thread */
2876 void pa_sink_attach_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_attach_within_thread(s->monitor_source);
2892 /* Called from IO thread */
2893 void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
2894 pa_sink_assert_ref(s);
2895 pa_sink_assert_io_context(s);
2896 pa_assert(PA_SINK_IS_LINKED(s->thread_info.state));
2898 if (s->thread_info.state == PA_SINK_SUSPENDED)
2901 if (nbytes == (size_t) -1)
2902 nbytes = s->thread_info.max_rewind;
2904 nbytes = PA_MIN(nbytes, s->thread_info.max_rewind);
2906 if (s->thread_info.rewind_requested &&
2907 nbytes <= s->thread_info.rewind_nbytes)
2910 s->thread_info.rewind_nbytes = nbytes;
2911 s->thread_info.rewind_requested = TRUE;
2913 if (s->request_rewind)
2914 s->request_rewind(s);
2917 /* Called from IO thread */
2918 pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
2919 pa_usec_t result = (pa_usec_t) -1;
2922 pa_usec_t monitor_latency;
2924 pa_sink_assert_ref(s);
2925 pa_sink_assert_io_context(s);
2927 if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
2928 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2930 if (s->thread_info.requested_latency_valid)
2931 return s->thread_info.requested_latency;
2933 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2934 if (i->thread_info.requested_sink_latency != (pa_usec_t) -1 &&
2935 (result == (pa_usec_t) -1 || result > i->thread_info.requested_sink_latency))
2936 result = i->thread_info.requested_sink_latency;
2938 monitor_latency = pa_source_get_requested_latency_within_thread(s->monitor_source);
2940 if (monitor_latency != (pa_usec_t) -1 &&
2941 (result == (pa_usec_t) -1 || result > monitor_latency))
2942 result = monitor_latency;
2944 if (result != (pa_usec_t) -1)
2945 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2947 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
2948 /* Only cache if properly initialized */
2949 s->thread_info.requested_latency = result;
2950 s->thread_info.requested_latency_valid = TRUE;
2956 /* Called from main thread */
2957 pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
2960 pa_sink_assert_ref(s);
2961 pa_assert_ctl_context();
2962 pa_assert(PA_SINK_IS_LINKED(s->state));
2964 if (s->state == PA_SINK_SUSPENDED)
2967 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2972 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
2973 void pa_sink_set_max_rewind_within_thread(pa_sink *s, size_t max_rewind) {
2977 pa_sink_assert_ref(s);
2978 pa_sink_assert_io_context(s);
2980 if (max_rewind == s->thread_info.max_rewind)
2983 s->thread_info.max_rewind = max_rewind;
2985 if (PA_SINK_IS_LINKED(s->thread_info.state))
2986 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
2987 pa_sink_input_update_max_rewind(i, s->thread_info.max_rewind);
2989 if (s->monitor_source)
2990 pa_source_set_max_rewind_within_thread(s->monitor_source, s->thread_info.max_rewind);
2993 /* Called from main thread */
2994 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
2995 pa_sink_assert_ref(s);
2996 pa_assert_ctl_context();
2998 if (PA_SINK_IS_LINKED(s->state))
2999 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
3001 pa_sink_set_max_rewind_within_thread(s, max_rewind);
3004 /* Called from IO as well as the main thread -- the latter only before the IO thread started up */
3005 void pa_sink_set_max_request_within_thread(pa_sink *s, size_t max_request) {
3008 pa_sink_assert_ref(s);
3009 pa_sink_assert_io_context(s);
3011 if (max_request == s->thread_info.max_request)
3014 s->thread_info.max_request = max_request;
3016 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3019 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3020 pa_sink_input_update_max_request(i, s->thread_info.max_request);
3024 /* Called from main thread */
3025 void pa_sink_set_max_request(pa_sink *s, size_t max_request) {
3026 pa_sink_assert_ref(s);
3027 pa_assert_ctl_context();
3029 if (PA_SINK_IS_LINKED(s->state))
3030 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_MAX_REQUEST, NULL, max_request, NULL) == 0);
3032 pa_sink_set_max_request_within_thread(s, max_request);
3035 /* Called from IO thread */
3036 void pa_sink_invalidate_requested_latency(pa_sink *s, pa_bool_t dynamic) {
3040 pa_sink_assert_ref(s);
3041 pa_sink_assert_io_context(s);
3043 if ((s->flags & PA_SINK_DYNAMIC_LATENCY))
3044 s->thread_info.requested_latency_valid = FALSE;
3048 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3050 if (s->update_requested_latency)
3051 s->update_requested_latency(s);
3053 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3054 if (i->update_sink_requested_latency)
3055 i->update_sink_requested_latency(i);
3059 /* Called from main thread */
3060 void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3061 pa_sink_assert_ref(s);
3062 pa_assert_ctl_context();
3064 /* min_latency == 0: no limit
3065 * min_latency anything else: specified limit
3067 * Similar for max_latency */
3069 if (min_latency < ABSOLUTE_MIN_LATENCY)
3070 min_latency = ABSOLUTE_MIN_LATENCY;
3072 if (max_latency <= 0 ||
3073 max_latency > ABSOLUTE_MAX_LATENCY)
3074 max_latency = ABSOLUTE_MAX_LATENCY;
3076 pa_assert(min_latency <= max_latency);
3078 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3079 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3080 max_latency == ABSOLUTE_MAX_LATENCY) ||
3081 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3083 if (PA_SINK_IS_LINKED(s->state)) {
3089 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
3091 pa_sink_set_latency_range_within_thread(s, min_latency, max_latency);
3094 /* Called from main thread */
3095 void pa_sink_get_latency_range(pa_sink *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
3096 pa_sink_assert_ref(s);
3097 pa_assert_ctl_context();
3098 pa_assert(min_latency);
3099 pa_assert(max_latency);
3101 if (PA_SINK_IS_LINKED(s->state)) {
3102 pa_usec_t r[2] = { 0, 0 };
3104 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
3106 *min_latency = r[0];
3107 *max_latency = r[1];
3109 *min_latency = s->thread_info.min_latency;
3110 *max_latency = s->thread_info.max_latency;
3114 /* Called from IO thread */
3115 void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency) {
3116 pa_sink_assert_ref(s);
3117 pa_sink_assert_io_context(s);
3119 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
3120 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
3121 pa_assert(min_latency <= max_latency);
3123 /* Hmm, let's see if someone forgot to set PA_SINK_DYNAMIC_LATENCY here... */
3124 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
3125 max_latency == ABSOLUTE_MAX_LATENCY) ||
3126 (s->flags & PA_SINK_DYNAMIC_LATENCY));
3128 if (s->thread_info.min_latency == min_latency &&
3129 s->thread_info.max_latency == max_latency)
3132 s->thread_info.min_latency = min_latency;
3133 s->thread_info.max_latency = max_latency;
3135 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3139 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3140 if (i->update_sink_latency_range)
3141 i->update_sink_latency_range(i);
3144 pa_sink_invalidate_requested_latency(s, FALSE);
3146 pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
3149 /* Called from main thread */
3150 void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
3151 pa_sink_assert_ref(s);
3152 pa_assert_ctl_context();
3154 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3155 pa_assert(latency == 0);
3159 if (latency < ABSOLUTE_MIN_LATENCY)
3160 latency = ABSOLUTE_MIN_LATENCY;
3162 if (latency > ABSOLUTE_MAX_LATENCY)
3163 latency = ABSOLUTE_MAX_LATENCY;
3165 if (PA_SINK_IS_LINKED(s->state))
3166 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
3168 s->thread_info.fixed_latency = latency;
3170 pa_source_set_fixed_latency(s->monitor_source, latency);
3173 /* Called from main thread */
3174 pa_usec_t pa_sink_get_fixed_latency(pa_sink *s) {
3177 pa_sink_assert_ref(s);
3178 pa_assert_ctl_context();
3180 if (s->flags & PA_SINK_DYNAMIC_LATENCY)
3183 if (PA_SINK_IS_LINKED(s->state))
3184 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
3186 latency = s->thread_info.fixed_latency;
3191 /* Called from IO thread */
3192 void pa_sink_set_fixed_latency_within_thread(pa_sink *s, pa_usec_t latency) {
3193 pa_sink_assert_ref(s);
3194 pa_sink_assert_io_context(s);
3196 if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
3197 pa_assert(latency == 0);
3201 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
3202 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
3204 if (s->thread_info.fixed_latency == latency)
3207 s->thread_info.fixed_latency = latency;
3209 if (PA_SINK_IS_LINKED(s->thread_info.state)) {
3213 PA_HASHMAP_FOREACH(i, s->thread_info.inputs, state)
3214 if (i->update_sink_fixed_latency)
3215 i->update_sink_fixed_latency(i);
3218 pa_sink_invalidate_requested_latency(s, FALSE);
3220 pa_source_set_fixed_latency_within_thread(s->monitor_source, latency);
3223 /* Called from main context */
3224 size_t pa_sink_get_max_rewind(pa_sink *s) {
3226 pa_assert_ctl_context();
3227 pa_sink_assert_ref(s);
3229 if (!PA_SINK_IS_LINKED(s->state))
3230 return s->thread_info.max_rewind;
3232 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
3237 /* Called from main context */
3238 size_t pa_sink_get_max_request(pa_sink *s) {
3240 pa_sink_assert_ref(s);
3241 pa_assert_ctl_context();
3243 if (!PA_SINK_IS_LINKED(s->state))
3244 return s->thread_info.max_request;
3246 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_MAX_REQUEST, &r, 0, NULL) == 0);
3251 /* Called from main context */
3252 int pa_sink_set_port(pa_sink *s, const char *name, pa_bool_t save) {
3253 pa_device_port *port;
3256 pa_sink_assert_ref(s);
3257 pa_assert_ctl_context();
3260 pa_log_debug("set_port() operation not implemented for sink %u \"%s\"", s->index, s->name);
3261 return -PA_ERR_NOTIMPLEMENTED;
3265 return -PA_ERR_NOENTITY;
3267 if (!(port = pa_hashmap_get(s->ports, name)))
3268 return -PA_ERR_NOENTITY;
3270 if (s->active_port == port) {
3271 s->save_port = s->save_port || save;
3275 if (s->flags & PA_SINK_DEFERRED_VOLUME) {
3276 struct sink_message_set_port msg = { .port = port, .ret = 0 };
3277 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
3281 ret = s->set_port(s, port);
3284 return -PA_ERR_NOENTITY;
3286 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
3288 pa_log_info("Changed port of sink %u \"%s\" to %s", s->index, s->name, port->name);
3290 s->active_port = port;
3291 s->save_port = save;
3293 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PORT_CHANGED], s);
3298 pa_bool_t pa_device_init_icon(pa_proplist *p, pa_bool_t is_sink) {
3299 const char *ff, *c, *t = NULL, *s = "", *profile, *bus;
3303 if (pa_proplist_contains(p, PA_PROP_DEVICE_ICON_NAME))
3306 if ((ff = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3308 if (pa_streq(ff, "microphone"))
3309 t = "audio-input-microphone";
3310 else if (pa_streq(ff, "webcam"))
3312 else if (pa_streq(ff, "computer"))
3314 else if (pa_streq(ff, "handset"))
3316 else if (pa_streq(ff, "portable"))
3317 t = "multimedia-player";
3318 else if (pa_streq(ff, "tv"))
3319 t = "video-display";
3322 * The following icons are not part of the icon naming spec,
3323 * because Rodney Dawes sucks as the maintainer of that spec.
3325 * http://lists.freedesktop.org/archives/xdg/2009-May/010397.html
3327 else if (pa_streq(ff, "headset"))
3328 t = "audio-headset";
3329 else if (pa_streq(ff, "headphone"))
3330 t = "audio-headphones";
3331 else if (pa_streq(ff, "speaker"))
3332 t = "audio-speakers";
3333 else if (pa_streq(ff, "hands-free"))
3334 t = "audio-handsfree";
3338 if ((c = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3339 if (pa_streq(c, "modem"))
3346 t = "audio-input-microphone";
3349 if ((profile = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3350 if (strstr(profile, "analog"))
3352 else if (strstr(profile, "iec958"))
3354 else if (strstr(profile, "hdmi"))
3358 bus = pa_proplist_gets(p, PA_PROP_DEVICE_BUS);
3360 pa_proplist_setf(p, PA_PROP_DEVICE_ICON_NAME, "%s%s%s%s", t, pa_strempty(s), bus ? "-" : "", pa_strempty(bus));
3365 pa_bool_t pa_device_init_description(pa_proplist *p) {
3366 const char *s, *d = NULL, *k;
3369 if (pa_proplist_contains(p, PA_PROP_DEVICE_DESCRIPTION))
3372 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3373 if (pa_streq(s, "internal"))
3374 d = _("Internal Audio");
3377 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS)))
3378 if (pa_streq(s, "modem"))
3382 d = pa_proplist_gets(p, PA_PROP_DEVICE_PRODUCT_NAME);
3387 k = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_DESCRIPTION);
3390 pa_proplist_setf(p, PA_PROP_DEVICE_DESCRIPTION, _("%s %s"), d, k);
3392 pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, d);
3397 pa_bool_t pa_device_init_intended_roles(pa_proplist *p) {
3401 if (pa_proplist_contains(p, PA_PROP_DEVICE_INTENDED_ROLES))
3404 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR)))
3405 if (pa_streq(s, "handset") || pa_streq(s, "hands-free")
3406 || pa_streq(s, "headset")) {
3407 pa_proplist_sets(p, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
3414 unsigned pa_device_init_priority(pa_proplist *p) {
3416 unsigned priority = 0;
3420 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_CLASS))) {
3422 if (pa_streq(s, "sound"))
3424 else if (!pa_streq(s, "modem"))
3428 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_FORM_FACTOR))) {
3430 if (pa_streq(s, "internal"))
3432 else if (pa_streq(s, "speaker"))
3434 else if (pa_streq(s, "headphone"))
3438 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_BUS))) {
3440 if (pa_streq(s, "pci"))
3442 else if (pa_streq(s, "usb"))
3444 else if (pa_streq(s, "bluetooth"))
3448 if ((s = pa_proplist_gets(p, PA_PROP_DEVICE_PROFILE_NAME))) {
3450 if (pa_startswith(s, "analog-"))
3452 else if (pa_startswith(s, "iec958-"))
3459 PA_STATIC_FLIST_DECLARE(pa_sink_volume_change, 0, pa_xfree);
3461 /* Called from the IO thread. */
3462 static pa_sink_volume_change *pa_sink_volume_change_new(pa_sink *s) {
3463 pa_sink_volume_change *c;
3464 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_sink_volume_change))))
3465 c = pa_xnew(pa_sink_volume_change, 1);
3467 PA_LLIST_INIT(pa_sink_volume_change, c);
3469 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
3473 /* Called from the IO thread. */
3474 static void pa_sink_volume_change_free(pa_sink_volume_change *c) {
3476 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_sink_volume_change), c) < 0)
3480 /* Called from the IO thread. */
3481 void pa_sink_volume_change_push(pa_sink *s) {
3482 pa_sink_volume_change *c = NULL;
3483 pa_sink_volume_change *nc = NULL;
3484 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
3486 const char *direction = NULL;
3489 nc = pa_sink_volume_change_new(s);
3491 /* NOTE: There is already more different volumes in pa_sink that I can remember.
3492 * Adding one more volume for HW would get us rid of this, but I am trying
3493 * to survive with the ones we already have. */
3494 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
3496 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
3497 pa_log_debug("Volume not changing");
3498 pa_sink_volume_change_free(nc);
3502 nc->at = pa_sink_get_latency_within_thread(s);
3503 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3505 if (s->thread_info.volume_changes_tail) {
3506 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
3507 /* If volume is going up let's do it a bit late. If it is going
3508 * down let's do it a bit early. */
3509 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
3510 if (nc->at + safety_margin > c->at) {
3511 nc->at += safety_margin;
3516 else if (nc->at - safety_margin > c->at) {
3517 nc->at -= safety_margin;
3525 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
3526 nc->at += safety_margin;
3529 nc->at -= safety_margin;
3532 PA_LLIST_PREPEND(pa_sink_volume_change, s->thread_info.volume_changes, nc);
3535 PA_LLIST_INSERT_AFTER(pa_sink_volume_change, s->thread_info.volume_changes, c, nc);
3538 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
3540 /* We can ignore volume events that came earlier but should happen later than this. */
3541 PA_LLIST_FOREACH(c, nc->next) {
3542 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
3543 pa_sink_volume_change_free(c);
3546 s->thread_info.volume_changes_tail = nc;
3549 /* Called from the IO thread. */
3550 static void pa_sink_volume_change_flush(pa_sink *s) {
3551 pa_sink_volume_change *c = s->thread_info.volume_changes;
3553 s->thread_info.volume_changes = NULL;
3554 s->thread_info.volume_changes_tail = NULL;
3556 pa_sink_volume_change *next = c->next;
3557 pa_sink_volume_change_free(c);
3562 /* Called from the IO thread. */
3563 pa_bool_t pa_sink_volume_change_apply(pa_sink *s, pa_usec_t *usec_to_next) {
3565 pa_bool_t ret = FALSE;
3569 if (!s->thread_info.volume_changes || !PA_SINK_IS_LINKED(s->state)) {
3575 pa_assert(s->write_volume);
3577 now = pa_rtclock_now();
3579 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
3580 pa_sink_volume_change *c = s->thread_info.volume_changes;
3581 PA_LLIST_REMOVE(pa_sink_volume_change, s->thread_info.volume_changes, c);
3582 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
3583 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
3585 s->thread_info.current_hw_volume = c->hw_volume;
3586 pa_sink_volume_change_free(c);
3592 if (s->thread_info.volume_changes) {
3594 *usec_to_next = s->thread_info.volume_changes->at - now;
3595 if (pa_log_ratelimit(PA_LOG_DEBUG))
3596 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
3601 s->thread_info.volume_changes_tail = NULL;
3606 /* Called from the IO thread. */
3607 static void pa_sink_volume_change_rewind(pa_sink *s, size_t nbytes) {
3608 /* All the queued volume events later than current latency are shifted to happen earlier. */
3609 pa_sink_volume_change *c;
3610 pa_volume_t prev_vol = pa_cvolume_avg(&s->thread_info.current_hw_volume);
3611 pa_usec_t rewound = pa_bytes_to_usec(nbytes, &s->sample_spec);
3612 pa_usec_t limit = pa_sink_get_latency_within_thread(s);
3614 pa_log_debug("latency = %lld", (long long) limit);
3615 limit += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
3617 PA_LLIST_FOREACH(c, s->thread_info.volume_changes) {
3618 pa_usec_t modified_limit = limit;
3619 if (prev_vol > pa_cvolume_avg(&c->hw_volume))
3620 modified_limit -= s->thread_info.volume_change_safety_margin;
3622 modified_limit += s->thread_info.volume_change_safety_margin;
3623 if (c->at > modified_limit) {
3625 if (c->at < modified_limit)
3626 c->at = modified_limit;
3628 prev_vol = pa_cvolume_avg(&c->hw_volume);
3630 pa_sink_volume_change_apply(s, NULL);
3633 /* Called from the main thread */
3634 /* Gets the list of formats supported by the sink. The members and idxset must
3635 * be freed by the caller. */
3636 pa_idxset* pa_sink_get_formats(pa_sink *s) {
3641 if (s->get_formats) {
3642 /* Sink supports format query, all is good */
3643 ret = s->get_formats(s);
3645 /* Sink doesn't support format query, so assume it does PCM */
3646 pa_format_info *f = pa_format_info_new();
3647 f->encoding = PA_ENCODING_PCM;
3649 ret = pa_idxset_new(NULL, NULL);
3650 pa_idxset_put(ret, f, NULL);
3656 /* Called from the main thread */
3657 /* Allows an external source to set what formats a sink supports if the sink
3658 * permits this. The function makes a copy of the formats on success. */
3659 pa_bool_t pa_sink_set_formats(pa_sink *s, pa_idxset *formats) {
3664 /* Sink supports setting formats -- let's give it a shot */
3665 return s->set_formats(s, formats);
3667 /* Sink doesn't support setting this -- bail out */
3671 /* Called from the main thread */
3672 /* Checks if the sink can accept this format */
3673 pa_bool_t pa_sink_check_format(pa_sink *s, pa_format_info *f)
3675 pa_idxset *formats = NULL;
3676 pa_bool_t ret = FALSE;
3681 formats = pa_sink_get_formats(s);
3684 pa_format_info *finfo_device;
3687 PA_IDXSET_FOREACH(finfo_device, formats, i) {
3688 if (pa_format_info_is_compatible(finfo_device, f)) {
3694 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
3700 /* Called from the main thread */
3701 /* Calculates the intersection between formats supported by the sink and
3702 * in_formats, and returns these, in the order of the sink's formats. */
3703 pa_idxset* pa_sink_check_formats(pa_sink *s, pa_idxset *in_formats) {
3704 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *sink_formats = NULL;
3705 pa_format_info *f_sink, *f_in;
3710 if (!in_formats || pa_idxset_isempty(in_formats))
3713 sink_formats = pa_sink_get_formats(s);
3715 PA_IDXSET_FOREACH(f_sink, sink_formats, i) {
3716 PA_IDXSET_FOREACH(f_in, in_formats, j) {
3717 if (pa_format_info_is_compatible(f_sink, f_in))
3718 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
3724 pa_idxset_free(sink_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);