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, see <http://www.gnu.org/licenses/>.
28 #include <pulse/format.h>
29 #include <pulse/utf8.h>
30 #include <pulse/xmalloc.h>
31 #include <pulse/timeval.h>
32 #include <pulse/util.h>
33 #include <pulse/rtclock.h>
34 #include <pulse/internal.h>
36 #include <pulsecore/core-util.h>
37 #include <pulsecore/source-output.h>
38 #include <pulsecore/namereg.h>
39 #include <pulsecore/core-subscribe.h>
40 #include <pulsecore/log.h>
41 #include <pulsecore/mix.h>
42 #include <pulsecore/flist.h>
46 #define ABSOLUTE_MIN_LATENCY (500)
47 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
48 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
50 PA_DEFINE_PUBLIC_CLASS(pa_source, pa_msgobject);
52 struct pa_source_volume_change {
56 PA_LLIST_FIELDS(pa_source_volume_change);
59 struct source_message_set_port {
64 static void source_free(pa_object *o);
66 static void pa_source_volume_change_push(pa_source *s);
67 static void pa_source_volume_change_flush(pa_source *s);
69 pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data) {
73 data->proplist = pa_proplist_new();
74 data->ports = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_device_port_unref);
79 void pa_source_new_data_set_name(pa_source_new_data *data, const char *name) {
83 data->name = pa_xstrdup(name);
86 void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec) {
89 if ((data->sample_spec_is_set = !!spec))
90 data->sample_spec = *spec;
93 void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map) {
96 if ((data->channel_map_is_set = !!map))
97 data->channel_map = *map;
100 void pa_source_new_data_set_alternate_sample_rate(pa_source_new_data *data, const uint32_t alternate_sample_rate) {
103 data->alternate_sample_rate_is_set = true;
104 data->alternate_sample_rate = alternate_sample_rate;
107 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume) {
110 if ((data->volume_is_set = !!volume))
111 data->volume = *volume;
114 void pa_source_new_data_set_muted(pa_source_new_data *data, bool mute) {
117 data->muted_is_set = true;
121 void pa_source_new_data_set_port(pa_source_new_data *data, const char *port) {
124 pa_xfree(data->active_port);
125 data->active_port = pa_xstrdup(port);
128 void pa_source_new_data_done(pa_source_new_data *data) {
131 pa_proplist_free(data->proplist);
134 pa_hashmap_free(data->ports);
136 pa_xfree(data->name);
137 pa_xfree(data->active_port);
140 /* Called from main context */
141 static void reset_callbacks(pa_source *s) {
145 s->get_volume = NULL;
146 s->set_volume = NULL;
147 s->write_volume = NULL;
150 s->update_requested_latency = NULL;
152 s->get_formats = NULL;
153 s->update_rate = NULL;
156 /* Called from main context */
157 pa_source* pa_source_new(
159 pa_source_new_data *data,
160 pa_source_flags_t flags) {
164 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
169 pa_assert(data->name);
170 pa_assert_ctl_context();
172 s = pa_msgobject_new(pa_source);
174 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
175 pa_log_debug("Failed to register name %s.", data->name);
180 pa_source_new_data_set_name(data, name);
182 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
184 pa_namereg_unregister(core, name);
188 /* FIXME, need to free s here on failure */
190 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
191 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
193 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
195 if (!data->channel_map_is_set)
196 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
198 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
199 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
201 /* FIXME: There should probably be a general function for checking whether
202 * the source volume is allowed to be set, like there is for source outputs. */
203 pa_assert(!data->volume_is_set || !(flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
205 if (!data->volume_is_set) {
206 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
207 data->save_volume = false;
210 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
211 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
213 if (!data->muted_is_set)
217 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
219 pa_device_init_description(data->proplist, data->card);
220 pa_device_init_icon(data->proplist, false);
221 pa_device_init_intended_roles(data->proplist);
223 if (!data->active_port) {
224 pa_device_port *p = pa_device_port_find_best(data->ports);
226 pa_source_new_data_set_port(data, p->name);
229 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
231 pa_namereg_unregister(core, name);
235 s->parent.parent.free = source_free;
236 s->parent.process_msg = pa_source_process_msg;
239 s->state = PA_SOURCE_INIT;
242 s->suspend_cause = data->suspend_cause;
243 pa_source_set_mixer_dirty(s, false);
244 s->name = pa_xstrdup(name);
245 s->proplist = pa_proplist_copy(data->proplist);
246 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
247 s->module = data->module;
248 s->card = data->card;
250 s->priority = pa_device_init_priority(s->proplist);
252 s->sample_spec = data->sample_spec;
253 s->channel_map = data->channel_map;
254 s->default_sample_rate = s->sample_spec.rate;
256 if (data->alternate_sample_rate_is_set)
257 s->alternate_sample_rate = data->alternate_sample_rate;
259 s->alternate_sample_rate = s->core->alternate_sample_rate;
261 if (s->sample_spec.rate == s->alternate_sample_rate) {
262 pa_log_warn("Default and alternate sample rates are the same.");
263 s->alternate_sample_rate = 0;
266 s->outputs = pa_idxset_new(NULL, NULL);
268 s->monitor_of = NULL;
269 s->output_from_master = NULL;
271 s->reference_volume = s->real_volume = data->volume;
272 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
273 s->base_volume = PA_VOLUME_NORM;
274 s->n_volume_steps = PA_VOLUME_NORM+1;
275 s->muted = data->muted;
276 s->refresh_volume = s->refresh_muted = false;
283 /* As a minor optimization we just steal the list instead of
285 s->ports = data->ports;
288 s->active_port = NULL;
289 s->save_port = false;
291 if (data->active_port)
292 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
293 s->save_port = data->save_port;
295 /* Hopefully the active port has already been assigned in the previous call
296 to pa_device_port_find_best, but better safe than sorry */
298 s->active_port = pa_device_port_find_best(s->ports);
301 s->port_latency_offset = s->active_port->latency_offset;
303 s->port_latency_offset = 0;
305 s->save_volume = data->save_volume;
306 s->save_muted = data->save_muted;
308 pa_silence_memchunk_get(
309 &core->silence_cache,
315 s->thread_info.rtpoll = NULL;
316 s->thread_info.outputs = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
317 (pa_free_cb_t) pa_source_output_unref);
318 s->thread_info.soft_volume = s->soft_volume;
319 s->thread_info.soft_muted = s->muted;
320 s->thread_info.state = s->state;
321 s->thread_info.max_rewind = 0;
322 s->thread_info.requested_latency_valid = false;
323 s->thread_info.requested_latency = 0;
324 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
325 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
326 s->thread_info.fixed_latency = flags & PA_SOURCE_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
328 PA_LLIST_HEAD_INIT(pa_source_volume_change, s->thread_info.volume_changes);
329 s->thread_info.volume_changes_tail = NULL;
330 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
331 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
332 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
333 s->thread_info.port_latency_offset = s->port_latency_offset;
335 /* FIXME: This should probably be moved to pa_source_put() */
336 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
339 pa_assert_se(pa_idxset_put(s->card->sources, s, NULL) >= 0);
341 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
342 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
345 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
346 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
353 /* Called from main context */
354 static int source_set_state(pa_source *s, pa_source_state_t state) {
357 pa_source_state_t original_state;
360 pa_assert_ctl_context();
362 if (s->state == state)
365 original_state = s->state;
368 (original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
369 (PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
372 if ((ret = s->set_state(s, state)) < 0)
376 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
379 s->set_state(s, original_state);
386 if (state != PA_SOURCE_UNLINKED) { /* if we enter UNLINKED state pa_source_unlink() will fire the appropriate events */
387 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
388 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
391 if (suspend_change) {
395 /* We're suspending or resuming, tell everyone about it */
397 PA_IDXSET_FOREACH(o, s->outputs, idx)
398 if (s->state == PA_SOURCE_SUSPENDED &&
399 (o->flags & PA_SOURCE_OUTPUT_KILL_ON_SUSPEND))
400 pa_source_output_kill(o);
402 o->suspend(o, state == PA_SOURCE_SUSPENDED);
408 void pa_source_set_get_volume_callback(pa_source *s, pa_source_cb_t cb) {
414 void pa_source_set_set_volume_callback(pa_source *s, pa_source_cb_t cb) {
415 pa_source_flags_t flags;
418 pa_assert(!s->write_volume || cb);
422 /* Save the current flags so we can tell if they've changed */
426 /* The source implementor is responsible for setting decibel volume support */
427 s->flags |= PA_SOURCE_HW_VOLUME_CTRL;
429 s->flags &= ~PA_SOURCE_HW_VOLUME_CTRL;
430 /* See note below in pa_source_put() about volume sharing and decibel volumes */
431 pa_source_enable_decibel_volume(s, !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
434 /* If the flags have changed after init, let any clients know via a change event */
435 if (s->state != PA_SOURCE_INIT && flags != s->flags)
436 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
439 void pa_source_set_write_volume_callback(pa_source *s, pa_source_cb_t cb) {
440 pa_source_flags_t flags;
443 pa_assert(!cb || s->set_volume);
445 s->write_volume = cb;
447 /* Save the current flags so we can tell if they've changed */
451 s->flags |= PA_SOURCE_DEFERRED_VOLUME;
453 s->flags &= ~PA_SOURCE_DEFERRED_VOLUME;
455 /* If the flags have changed after init, let any clients know via a change event */
456 if (s->state != PA_SOURCE_INIT && flags != s->flags)
457 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
460 void pa_source_set_get_mute_callback(pa_source *s, pa_source_get_mute_cb_t cb) {
466 void pa_source_set_set_mute_callback(pa_source *s, pa_source_cb_t cb) {
467 pa_source_flags_t flags;
473 /* Save the current flags so we can tell if they've changed */
477 s->flags |= PA_SOURCE_HW_MUTE_CTRL;
479 s->flags &= ~PA_SOURCE_HW_MUTE_CTRL;
481 /* If the flags have changed after init, let any clients know via a change event */
482 if (s->state != PA_SOURCE_INIT && flags != s->flags)
483 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
486 static void enable_flat_volume(pa_source *s, bool enable) {
487 pa_source_flags_t flags;
491 /* Always follow the overall user preference here */
492 enable = enable && s->core->flat_volumes;
494 /* Save the current flags so we can tell if they've changed */
498 s->flags |= PA_SOURCE_FLAT_VOLUME;
500 s->flags &= ~PA_SOURCE_FLAT_VOLUME;
502 /* If the flags have changed after init, let any clients know via a change event */
503 if (s->state != PA_SOURCE_INIT && flags != s->flags)
504 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
507 void pa_source_enable_decibel_volume(pa_source *s, bool enable) {
508 pa_source_flags_t flags;
512 /* Save the current flags so we can tell if they've changed */
516 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
517 enable_flat_volume(s, true);
519 s->flags &= ~PA_SOURCE_DECIBEL_VOLUME;
520 enable_flat_volume(s, false);
523 /* If the flags have changed after init, let any clients know via a change event */
524 if (s->state != PA_SOURCE_INIT && flags != s->flags)
525 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
528 /* Called from main context */
529 void pa_source_put(pa_source *s) {
530 pa_source_assert_ref(s);
531 pa_assert_ctl_context();
533 pa_assert(s->state == PA_SOURCE_INIT);
534 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || pa_source_is_filter(s));
536 /* The following fields must be initialized properly when calling _put() */
537 pa_assert(s->asyncmsgq);
538 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
540 /* Generally, flags should be initialized via pa_source_new(). As a
541 * special exception we allow some volume related flags to be set
542 * between _new() and _put() by the callback setter functions above.
544 * Thus we implement a couple safeguards here which ensure the above
545 * setters were used (or at least the implementor made manual changes
546 * in a compatible way).
548 * Note: All of these flags set here can change over the life time
550 pa_assert(!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) || s->set_volume);
551 pa_assert(!(s->flags & PA_SOURCE_DEFERRED_VOLUME) || s->write_volume);
552 pa_assert(!(s->flags & PA_SOURCE_HW_MUTE_CTRL) || s->set_mute);
554 /* XXX: Currently decibel volume is disabled for all sources that use volume
555 * sharing. When the master source supports decibel volume, it would be good
556 * to have the flag also in the filter source, but currently we don't do that
557 * so that the flags of the filter source never change when it's moved from
558 * a master source to another. One solution for this problem would be to
559 * remove user-visible volume altogether from filter sources when volume
560 * sharing is used, but the current approach was easier to implement... */
561 /* We always support decibel volumes in software, otherwise we leave it to
562 * the source implementor to set this flag as needed.
564 * Note: This flag can also change over the life time of the source. */
565 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
566 pa_source_enable_decibel_volume(s, true);
567 s->soft_volume = s->reference_volume;
570 /* If the source implementor support DB volumes by itself, we should always
571 * try and enable flat volumes too */
572 if ((s->flags & PA_SOURCE_DECIBEL_VOLUME))
573 enable_flat_volume(s, true);
575 if (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) {
576 pa_source *root_source = pa_source_get_master(s);
578 pa_assert(PA_LIKELY(root_source));
580 s->reference_volume = root_source->reference_volume;
581 pa_cvolume_remap(&s->reference_volume, &root_source->channel_map, &s->channel_map);
583 s->real_volume = root_source->real_volume;
584 pa_cvolume_remap(&s->real_volume, &root_source->channel_map, &s->channel_map);
586 /* We assume that if the sink implementor changed the default
587 * volume he did so in real_volume, because that is the usual
588 * place where he is supposed to place his changes. */
589 s->reference_volume = s->real_volume;
591 s->thread_info.soft_volume = s->soft_volume;
592 s->thread_info.soft_muted = s->muted;
593 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
595 pa_assert((s->flags & PA_SOURCE_HW_VOLUME_CTRL)
596 || (s->base_volume == PA_VOLUME_NORM
597 && ((s->flags & PA_SOURCE_DECIBEL_VOLUME || (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)))));
598 pa_assert(!(s->flags & PA_SOURCE_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
599 pa_assert(!(s->flags & PA_SOURCE_DYNAMIC_LATENCY) == !(s->thread_info.fixed_latency == 0));
601 if (s->suspend_cause)
602 pa_assert_se(source_set_state(s, PA_SOURCE_SUSPENDED) == 0);
604 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
606 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
607 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
610 /* Called from main context */
611 void pa_source_unlink(pa_source *s) {
613 pa_source_output *o, PA_UNUSED *j = NULL;
615 pa_source_assert_ref(s);
616 pa_assert_ctl_context();
618 /* See pa_sink_unlink() for a couple of comments how this function
621 if (s->unlink_requested)
624 s->unlink_requested = true;
626 linked = PA_SOURCE_IS_LINKED(s->state);
629 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
631 if (s->state != PA_SOURCE_UNLINKED)
632 pa_namereg_unregister(s->core, s->name);
633 pa_idxset_remove_by_data(s->core->sources, s, NULL);
636 pa_idxset_remove_by_data(s->card->sources, s, NULL);
638 while ((o = pa_idxset_first(s->outputs, NULL))) {
640 pa_source_output_kill(o);
645 source_set_state(s, PA_SOURCE_UNLINKED);
647 s->state = PA_SOURCE_UNLINKED;
652 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
653 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
657 /* Called from main context */
658 static void source_free(pa_object *o) {
659 pa_source *s = PA_SOURCE(o);
662 pa_assert_ctl_context();
663 pa_assert(pa_source_refcnt(s) == 0);
664 pa_assert(!PA_SOURCE_IS_LINKED(s->state));
666 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
668 pa_source_volume_change_flush(s);
670 pa_idxset_free(s->outputs, NULL);
671 pa_hashmap_free(s->thread_info.outputs);
673 if (s->silence.memblock)
674 pa_memblock_unref(s->silence.memblock);
680 pa_proplist_free(s->proplist);
683 pa_hashmap_free(s->ports);
688 /* Called from main context, and not while the IO thread is active, please */
689 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
690 pa_source_assert_ref(s);
691 pa_assert_ctl_context();
696 /* Called from main context, and not while the IO thread is active, please */
697 void pa_source_update_flags(pa_source *s, pa_source_flags_t mask, pa_source_flags_t value) {
698 pa_source_flags_t old_flags;
699 pa_source_output *output;
702 pa_source_assert_ref(s);
703 pa_assert_ctl_context();
705 /* For now, allow only a minimal set of flags to be changed. */
706 pa_assert((mask & ~(PA_SOURCE_DYNAMIC_LATENCY|PA_SOURCE_LATENCY)) == 0);
708 old_flags = s->flags;
709 s->flags = (s->flags & ~mask) | (value & mask);
711 if (s->flags == old_flags)
714 if ((s->flags & PA_SOURCE_LATENCY) != (old_flags & PA_SOURCE_LATENCY))
715 pa_log_debug("Source %s: LATENCY flag %s.", s->name, (s->flags & PA_SOURCE_LATENCY) ? "enabled" : "disabled");
717 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY) != (old_flags & PA_SOURCE_DYNAMIC_LATENCY))
718 pa_log_debug("Source %s: DYNAMIC_LATENCY flag %s.",
719 s->name, (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ? "enabled" : "disabled");
721 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
722 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_FLAGS_CHANGED], s);
724 PA_IDXSET_FOREACH(output, s->outputs, idx) {
725 if (output->destination_source)
726 pa_source_update_flags(output->destination_source, mask, value);
730 /* Called from IO context, or before _put() from main context */
731 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
732 pa_source_assert_ref(s);
733 pa_source_assert_io_context(s);
735 s->thread_info.rtpoll = p;
738 /* Called from main context */
739 int pa_source_update_status(pa_source*s) {
740 pa_source_assert_ref(s);
741 pa_assert_ctl_context();
742 pa_assert(PA_SOURCE_IS_LINKED(s->state));
744 if (s->state == PA_SOURCE_SUSPENDED)
747 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
750 /* Called from any context - must be threadsafe */
751 void pa_source_set_mixer_dirty(pa_source *s, bool is_dirty) {
752 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
755 /* Called from main context */
756 int pa_source_suspend(pa_source *s, bool suspend, pa_suspend_cause_t cause) {
757 pa_source_assert_ref(s);
758 pa_assert_ctl_context();
759 pa_assert(PA_SOURCE_IS_LINKED(s->state));
760 pa_assert(cause != 0);
762 if (s->monitor_of && cause != PA_SUSPEND_PASSTHROUGH)
763 return -PA_ERR_NOTSUPPORTED;
766 s->suspend_cause |= cause;
768 s->suspend_cause &= ~cause;
770 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
771 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
772 it'll be handled just fine. */
773 pa_source_set_mixer_dirty(s, false);
774 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
775 if (s->active_port && s->set_port) {
776 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
777 struct source_message_set_port msg = { .port = s->active_port, .ret = 0 };
778 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
781 s->set_port(s, s->active_port);
791 if ((pa_source_get_state(s) == PA_SOURCE_SUSPENDED) == !!s->suspend_cause)
794 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
796 if (s->suspend_cause)
797 return source_set_state(s, PA_SOURCE_SUSPENDED);
799 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
802 /* Called from main context */
803 int pa_source_sync_suspend(pa_source *s) {
804 pa_sink_state_t state;
806 pa_source_assert_ref(s);
807 pa_assert_ctl_context();
808 pa_assert(PA_SOURCE_IS_LINKED(s->state));
809 pa_assert(s->monitor_of);
811 state = pa_sink_get_state(s->monitor_of);
813 if (state == PA_SINK_SUSPENDED)
814 return source_set_state(s, PA_SOURCE_SUSPENDED);
816 pa_assert(PA_SINK_IS_OPENED(state));
818 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
821 /* Called from main context */
822 pa_queue *pa_source_move_all_start(pa_source *s, pa_queue *q) {
823 pa_source_output *o, *n;
826 pa_source_assert_ref(s);
827 pa_assert_ctl_context();
828 pa_assert(PA_SOURCE_IS_LINKED(s->state));
833 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
834 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
836 pa_source_output_ref(o);
838 if (pa_source_output_start_move(o) >= 0)
841 pa_source_output_unref(o);
847 /* Called from main context */
848 void pa_source_move_all_finish(pa_source *s, pa_queue *q, bool save) {
851 pa_source_assert_ref(s);
852 pa_assert_ctl_context();
853 pa_assert(PA_SOURCE_IS_LINKED(s->state));
856 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
857 if (pa_source_output_finish_move(o, s, save) < 0)
858 pa_source_output_fail_move(o);
860 pa_source_output_unref(o);
863 pa_queue_free(q, NULL);
866 /* Called from main context */
867 void pa_source_move_all_fail(pa_queue *q) {
870 pa_assert_ctl_context();
873 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
874 pa_source_output_fail_move(o);
875 pa_source_output_unref(o);
878 pa_queue_free(q, NULL);
881 /* Called from IO thread context */
882 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
886 pa_source_assert_ref(s);
887 pa_source_assert_io_context(s);
888 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
893 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
896 pa_log_debug("Processing rewind...");
898 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
899 pa_source_output_assert_ref(o);
900 pa_source_output_process_rewind(o, nbytes);
904 /* Called from IO thread context */
905 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
909 pa_source_assert_ref(s);
910 pa_source_assert_io_context(s);
911 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
914 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
917 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
918 pa_memchunk vchunk = *chunk;
920 pa_memblock_ref(vchunk.memblock);
921 pa_memchunk_make_writable(&vchunk, 0);
923 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
924 pa_silence_memchunk(&vchunk, &s->sample_spec);
926 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
928 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
929 pa_source_output_assert_ref(o);
931 if (!o->thread_info.direct_on_input)
932 pa_source_output_push(o, &vchunk);
935 pa_memblock_unref(vchunk.memblock);
938 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
939 pa_source_output_assert_ref(o);
941 if (!o->thread_info.direct_on_input)
942 pa_source_output_push(o, chunk);
947 /* Called from IO thread context */
948 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
949 pa_source_assert_ref(s);
950 pa_source_assert_io_context(s);
951 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
952 pa_source_output_assert_ref(o);
953 pa_assert(o->thread_info.direct_on_input);
956 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
959 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
960 pa_memchunk vchunk = *chunk;
962 pa_memblock_ref(vchunk.memblock);
963 pa_memchunk_make_writable(&vchunk, 0);
965 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
966 pa_silence_memchunk(&vchunk, &s->sample_spec);
968 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
970 pa_source_output_push(o, &vchunk);
972 pa_memblock_unref(vchunk.memblock);
974 pa_source_output_push(o, chunk);
977 /* Called from main thread */
978 int pa_source_update_rate(pa_source *s, uint32_t rate, bool passthrough) {
980 uint32_t desired_rate;
981 uint32_t default_rate = s->default_sample_rate;
982 uint32_t alternate_rate = s->alternate_sample_rate;
983 bool default_rate_is_usable = false;
984 bool alternate_rate_is_usable = false;
985 bool avoid_resampling = s->core->avoid_resampling;
987 if (rate == s->sample_spec.rate)
990 if (!s->update_rate && !s->monitor_of)
993 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
994 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
998 if (PA_SOURCE_IS_RUNNING(s->state)) {
999 pa_log_info("Cannot update rate, SOURCE_IS_RUNNING, will keep using %u Hz",
1000 s->sample_spec.rate);
1004 if (s->monitor_of) {
1005 if (PA_SINK_IS_RUNNING(s->monitor_of->state)) {
1006 pa_log_info("Cannot update rate, this is a monitor source and the sink is running.");
1011 if (PA_UNLIKELY(!pa_sample_rate_valid(rate)))
1015 /* We have to try to use the source output rate */
1016 desired_rate = rate;
1018 } else if (avoid_resampling && (rate >= default_rate || rate >= alternate_rate)) {
1019 /* We just try to set the source output's sample rate if it's not too low */
1020 desired_rate = rate;
1022 } else if (default_rate == rate || alternate_rate == rate) {
1023 /* We can directly try to use this rate */
1024 desired_rate = rate;
1027 /* See if we can pick a rate that results in less resampling effort */
1028 if (default_rate % 11025 == 0 && rate % 11025 == 0)
1029 default_rate_is_usable = true;
1030 if (default_rate % 4000 == 0 && rate % 4000 == 0)
1031 default_rate_is_usable = true;
1032 if (alternate_rate && alternate_rate % 11025 == 0 && rate % 11025 == 0)
1033 alternate_rate_is_usable = true;
1034 if (alternate_rate && alternate_rate % 4000 == 0 && rate % 4000 == 0)
1035 alternate_rate_is_usable = true;
1037 if (alternate_rate_is_usable && !default_rate_is_usable)
1038 desired_rate = alternate_rate;
1040 desired_rate = default_rate;
1043 if (desired_rate == s->sample_spec.rate)
1046 if (!passthrough && pa_source_used_by(s) > 0)
1049 pa_log_debug("Suspending source %s due to changing the sample rate.", s->name);
1050 pa_source_suspend(s, true, PA_SUSPEND_INTERNAL);
1053 ret = s->update_rate(s, desired_rate);
1055 /* This is a monitor source. */
1057 /* XXX: This code is written with non-passthrough streams in mind. I
1058 * have no idea whether the behaviour with passthrough streams is
1061 uint32_t old_rate = s->sample_spec.rate;
1063 s->sample_spec.rate = desired_rate;
1064 ret = pa_sink_update_rate(s->monitor_of, desired_rate, false);
1067 /* Changing the sink rate failed, roll back the old rate for
1068 * the monitor source. Why did we set the source rate before
1069 * calling pa_sink_update_rate(), you may ask. The reason is
1070 * that pa_sink_update_rate() tries to update the monitor
1071 * source rate, but we are already in the process of updating
1072 * the monitor source rate, so there's a risk of entering an
1073 * infinite loop. Setting the source rate before calling
1074 * pa_sink_update_rate() makes the rate == s->sample_spec.rate
1075 * check in the beginning of this function return early, so we
1077 s->sample_spec.rate = old_rate;
1085 pa_source_output *o;
1087 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1088 if (o->state == PA_SOURCE_OUTPUT_CORKED)
1089 pa_source_output_update_rate(o);
1092 pa_log_info("Changed sampling rate successfully");
1095 pa_source_suspend(s, false, PA_SUSPEND_INTERNAL);
1100 /* Called from main thread */
1101 pa_usec_t pa_source_get_latency(pa_source *s) {
1104 pa_source_assert_ref(s);
1105 pa_assert_ctl_context();
1106 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1108 if (s->state == PA_SOURCE_SUSPENDED)
1111 if (!(s->flags & PA_SOURCE_LATENCY))
1114 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1116 /* usec is unsigned, so check that the offset can be added to usec without
1118 if (-s->port_latency_offset <= (int64_t) usec)
1119 usec += s->port_latency_offset;
1126 /* Called from IO thread */
1127 pa_usec_t pa_source_get_latency_within_thread(pa_source *s) {
1131 pa_source_assert_ref(s);
1132 pa_source_assert_io_context(s);
1133 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
1135 /* The returned value is supposed to be in the time domain of the sound card! */
1137 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
1140 if (!(s->flags & PA_SOURCE_LATENCY))
1143 o = PA_MSGOBJECT(s);
1145 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1147 o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1149 /* usec is unsigned, so check that the offset can be added to usec without
1151 if (-s->thread_info.port_latency_offset <= (int64_t) usec)
1152 usec += s->thread_info.port_latency_offset;
1159 /* Called from the main thread (and also from the IO thread while the main
1160 * thread is waiting).
1162 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
1163 * set. Instead, flat volume mode is detected by checking whether the root source
1164 * has the flag set. */
1165 bool pa_source_flat_volume_enabled(pa_source *s) {
1166 pa_source_assert_ref(s);
1168 s = pa_source_get_master(s);
1171 return (s->flags & PA_SOURCE_FLAT_VOLUME);
1176 /* Called from the main thread (and also from the IO thread while the main
1177 * thread is waiting). */
1178 pa_source *pa_source_get_master(pa_source *s) {
1179 pa_source_assert_ref(s);
1181 while (s && (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1182 if (PA_UNLIKELY(!s->output_from_master))
1185 s = s->output_from_master->source;
1191 /* Called from main context */
1192 bool pa_source_is_filter(pa_source *s) {
1193 pa_source_assert_ref(s);
1195 return (s->output_from_master != NULL);
1198 /* Called from main context */
1199 bool pa_source_is_passthrough(pa_source *s) {
1201 pa_source_assert_ref(s);
1203 /* NB Currently only monitor sources support passthrough mode */
1204 return (s->monitor_of && pa_sink_is_passthrough(s->monitor_of));
1207 /* Called from main context */
1208 void pa_source_enter_passthrough(pa_source *s) {
1211 /* set the volume to NORM */
1212 s->saved_volume = *pa_source_get_volume(s, true);
1213 s->saved_save_volume = s->save_volume;
1215 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1216 pa_source_set_volume(s, &volume, true, false);
1219 /* Called from main context */
1220 void pa_source_leave_passthrough(pa_source *s) {
1221 /* Restore source volume to what it was before we entered passthrough mode */
1222 pa_source_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1224 pa_cvolume_init(&s->saved_volume);
1225 s->saved_save_volume = false;
1228 /* Called from main context. */
1229 static void compute_reference_ratio(pa_source_output *o) {
1231 pa_cvolume remapped;
1235 pa_assert(pa_source_flat_volume_enabled(o->source));
1238 * Calculates the reference ratio from the source's reference
1239 * volume. This basically calculates:
1241 * o->reference_ratio = o->volume / o->source->reference_volume
1244 remapped = o->source->reference_volume;
1245 pa_cvolume_remap(&remapped, &o->source->channel_map, &o->channel_map);
1247 ratio = o->reference_ratio;
1249 for (c = 0; c < o->sample_spec.channels; c++) {
1251 /* We don't update when the source volume is 0 anyway */
1252 if (remapped.values[c] <= PA_VOLUME_MUTED)
1255 /* Don't update the reference ratio unless necessary */
1256 if (pa_sw_volume_multiply(
1258 remapped.values[c]) == o->volume.values[c])
1261 ratio.values[c] = pa_sw_volume_divide(
1262 o->volume.values[c],
1263 remapped.values[c]);
1266 pa_source_output_set_reference_ratio(o, &ratio);
1269 /* Called from main context. Only called for the root source in volume sharing
1270 * cases, except for internal recursive calls. */
1271 static void compute_reference_ratios(pa_source *s) {
1273 pa_source_output *o;
1275 pa_source_assert_ref(s);
1276 pa_assert_ctl_context();
1277 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1278 pa_assert(pa_source_flat_volume_enabled(s));
1280 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1281 compute_reference_ratio(o);
1283 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1284 compute_reference_ratios(o->destination_source);
1288 /* Called from main context. Only called for the root source in volume sharing
1289 * cases, except for internal recursive calls. */
1290 static void compute_real_ratios(pa_source *s) {
1291 pa_source_output *o;
1294 pa_source_assert_ref(s);
1295 pa_assert_ctl_context();
1296 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1297 pa_assert(pa_source_flat_volume_enabled(s));
1299 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1301 pa_cvolume remapped;
1303 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1304 /* The origin source uses volume sharing, so this input's real ratio
1305 * is handled as a special case - the real ratio must be 0 dB, and
1306 * as a result i->soft_volume must equal i->volume_factor. */
1307 pa_cvolume_reset(&o->real_ratio, o->real_ratio.channels);
1308 o->soft_volume = o->volume_factor;
1310 compute_real_ratios(o->destination_source);
1316 * This basically calculates:
1318 * i->real_ratio := i->volume / s->real_volume
1319 * i->soft_volume := i->real_ratio * i->volume_factor
1322 remapped = s->real_volume;
1323 pa_cvolume_remap(&remapped, &s->channel_map, &o->channel_map);
1325 o->real_ratio.channels = o->sample_spec.channels;
1326 o->soft_volume.channels = o->sample_spec.channels;
1328 for (c = 0; c < o->sample_spec.channels; c++) {
1330 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1331 /* We leave o->real_ratio untouched */
1332 o->soft_volume.values[c] = PA_VOLUME_MUTED;
1336 /* Don't lose accuracy unless necessary */
1337 if (pa_sw_volume_multiply(
1338 o->real_ratio.values[c],
1339 remapped.values[c]) != o->volume.values[c])
1341 o->real_ratio.values[c] = pa_sw_volume_divide(
1342 o->volume.values[c],
1343 remapped.values[c]);
1345 o->soft_volume.values[c] = pa_sw_volume_multiply(
1346 o->real_ratio.values[c],
1347 o->volume_factor.values[c]);
1350 /* We don't copy the soft_volume to the thread_info data
1351 * here. That must be done by the caller */
1355 static pa_cvolume *cvolume_remap_minimal_impact(
1357 const pa_cvolume *template,
1358 const pa_channel_map *from,
1359 const pa_channel_map *to) {
1364 pa_assert(template);
1367 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1368 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1370 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1371 * mapping from source output to source volumes:
1373 * If template is a possible remapping from v it is used instead
1374 * of remapping anew.
1376 * If the channel maps don't match we set an all-channel volume on
1377 * the source to ensure that changing a volume on one stream has no
1378 * effect that cannot be compensated for in another stream that
1379 * does not have the same channel map as the source. */
1381 if (pa_channel_map_equal(from, to))
1385 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1390 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1394 /* Called from main thread. Only called for the root source in volume sharing
1395 * cases, except for internal recursive calls. */
1396 static void get_maximum_output_volume(pa_source *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1397 pa_source_output *o;
1400 pa_source_assert_ref(s);
1401 pa_assert(max_volume);
1402 pa_assert(channel_map);
1403 pa_assert(pa_source_flat_volume_enabled(s));
1405 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1406 pa_cvolume remapped;
1408 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1409 get_maximum_output_volume(o->destination_source, max_volume, channel_map);
1411 /* Ignore this output. The origin source uses volume sharing, so this
1412 * output's volume will be set to be equal to the root source's real
1413 * volume. Obviously this output's current volume must not then
1414 * affect what the root source's real volume will be. */
1418 remapped = o->volume;
1419 cvolume_remap_minimal_impact(&remapped, max_volume, &o->channel_map, channel_map);
1420 pa_cvolume_merge(max_volume, max_volume, &remapped);
1424 /* Called from main thread. Only called for the root source in volume sharing
1425 * cases, except for internal recursive calls. */
1426 static bool has_outputs(pa_source *s) {
1427 pa_source_output *o;
1430 pa_source_assert_ref(s);
1432 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1433 if (!o->destination_source || !(o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || has_outputs(o->destination_source))
1440 /* Called from main thread. Only called for the root source in volume sharing
1441 * cases, except for internal recursive calls. */
1442 static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1443 pa_source_output *o;
1446 pa_source_assert_ref(s);
1447 pa_assert(new_volume);
1448 pa_assert(channel_map);
1450 s->real_volume = *new_volume;
1451 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1453 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1454 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1455 if (pa_source_flat_volume_enabled(s)) {
1456 pa_cvolume new_output_volume;
1458 /* Follow the root source's real volume. */
1459 new_output_volume = *new_volume;
1460 pa_cvolume_remap(&new_output_volume, channel_map, &o->channel_map);
1461 pa_source_output_set_volume_direct(o, &new_output_volume);
1462 compute_reference_ratio(o);
1465 update_real_volume(o->destination_source, new_volume, channel_map);
1470 /* Called from main thread. Only called for the root source in shared volume
1472 static void compute_real_volume(pa_source *s) {
1473 pa_source_assert_ref(s);
1474 pa_assert_ctl_context();
1475 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1476 pa_assert(pa_source_flat_volume_enabled(s));
1477 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1479 /* This determines the maximum volume of all streams and sets
1480 * s->real_volume accordingly. */
1482 if (!has_outputs(s)) {
1483 /* In the special case that we have no source outputs we leave the
1484 * volume unmodified. */
1485 update_real_volume(s, &s->reference_volume, &s->channel_map);
1489 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1491 /* First let's determine the new maximum volume of all outputs
1492 * connected to this source */
1493 get_maximum_output_volume(s, &s->real_volume, &s->channel_map);
1494 update_real_volume(s, &s->real_volume, &s->channel_map);
1496 /* Then, let's update the real ratios/soft volumes of all outputs
1497 * connected to this source */
1498 compute_real_ratios(s);
1501 /* Called from main thread. Only called for the root source in shared volume
1502 * cases, except for internal recursive calls. */
1503 static void propagate_reference_volume(pa_source *s) {
1504 pa_source_output *o;
1507 pa_source_assert_ref(s);
1508 pa_assert_ctl_context();
1509 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1510 pa_assert(pa_source_flat_volume_enabled(s));
1512 /* This is called whenever the source volume changes that is not
1513 * caused by a source output volume change. We need to fix up the
1514 * source output volumes accordingly */
1516 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1517 pa_cvolume new_volume;
1519 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1520 propagate_reference_volume(o->destination_source);
1522 /* Since the origin source uses volume sharing, this output's volume
1523 * needs to be updated to match the root source's real volume, but
1524 * that will be done later in update_shared_real_volume(). */
1528 /* This basically calculates:
1530 * o->volume := o->reference_volume * o->reference_ratio */
1532 new_volume = s->reference_volume;
1533 pa_cvolume_remap(&new_volume, &s->channel_map, &o->channel_map);
1534 pa_sw_cvolume_multiply(&new_volume, &new_volume, &o->reference_ratio);
1535 pa_source_output_set_volume_direct(o, &new_volume);
1539 /* Called from main thread. Only called for the root source in volume sharing
1540 * cases, except for internal recursive calls. The return value indicates
1541 * whether any reference volume actually changed. */
1542 static bool update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
1544 bool reference_volume_changed;
1545 pa_source_output *o;
1548 pa_source_assert_ref(s);
1549 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1551 pa_assert(channel_map);
1552 pa_assert(pa_cvolume_valid(v));
1555 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1557 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1558 pa_source_set_reference_volume_direct(s, &volume);
1560 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1562 if (!reference_volume_changed && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1563 /* If the root source's volume doesn't change, then there can't be any
1564 * changes in the other source in the source tree either.
1566 * It's probably theoretically possible that even if the root source's
1567 * volume changes slightly, some filter source doesn't change its volume
1568 * due to rounding errors. If that happens, we still want to propagate
1569 * the changed root source volume to the sources connected to the
1570 * intermediate source that didn't change its volume. This theoretical
1571 * possibility is the reason why we have that !(s->flags &
1572 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1573 * notice even if we returned here false always if
1574 * reference_volume_changed is false. */
1577 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1578 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1579 update_reference_volume(o->destination_source, v, channel_map, false);
1585 /* Called from main thread */
1586 void pa_source_set_volume(
1588 const pa_cvolume *volume,
1592 pa_cvolume new_reference_volume, root_real_volume;
1593 pa_source *root_source;
1595 pa_source_assert_ref(s);
1596 pa_assert_ctl_context();
1597 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1598 pa_assert(!volume || pa_cvolume_valid(volume));
1599 pa_assert(volume || pa_source_flat_volume_enabled(s));
1600 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1602 /* make sure we don't change the volume in PASSTHROUGH mode ...
1603 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1604 if (pa_source_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1605 pa_log_warn("Cannot change volume, source is monitor of a PASSTHROUGH sink");
1609 /* In case of volume sharing, the volume is set for the root source first,
1610 * from which it's then propagated to the sharing sources. */
1611 root_source = pa_source_get_master(s);
1613 if (PA_UNLIKELY(!root_source))
1616 /* As a special exception we accept mono volumes on all sources --
1617 * even on those with more complex channel maps */
1620 if (pa_cvolume_compatible(volume, &s->sample_spec))
1621 new_reference_volume = *volume;
1623 new_reference_volume = s->reference_volume;
1624 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1627 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1629 if (update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save)) {
1630 if (pa_source_flat_volume_enabled(root_source)) {
1631 /* OK, propagate this volume change back to the outputs */
1632 propagate_reference_volume(root_source);
1634 /* And now recalculate the real volume */
1635 compute_real_volume(root_source);
1637 update_real_volume(root_source, &root_source->reference_volume, &root_source->channel_map);
1641 /* If volume is NULL we synchronize the source's real and
1642 * reference volumes with the stream volumes. */
1644 pa_assert(pa_source_flat_volume_enabled(root_source));
1646 /* Ok, let's determine the new real volume */
1647 compute_real_volume(root_source);
1649 /* To propagate the reference volume from the filter to the root source,
1650 * we first take the real volume from the root source and remap it to
1651 * match the filter. Then, we merge in the reference volume from the
1652 * filter on top of this, and remap it back to the root source channel
1654 root_real_volume = root_source->real_volume;
1655 /* First we remap root's real volume to filter channel count and map if needed */
1656 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1657 pa_cvolume_remap(&root_real_volume, &root_source->channel_map, &s->channel_map);
1658 /* Then let's 'push' the reference volume if necessary */
1659 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_real_volume);
1660 /* If the source and its root don't have the same number of channels, we need to remap back */
1661 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1662 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1664 update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save);
1666 /* Now that the reference volume is updated, we can update the streams'
1667 * reference ratios. */
1668 compute_reference_ratios(root_source);
1671 if (root_source->set_volume) {
1672 /* If we have a function set_volume(), then we do not apply a
1673 * soft volume by default. However, set_volume() is free to
1674 * apply one to root_source->soft_volume */
1676 pa_cvolume_reset(&root_source->soft_volume, root_source->sample_spec.channels);
1677 if (!(root_source->flags & PA_SOURCE_DEFERRED_VOLUME))
1678 root_source->set_volume(root_source);
1681 /* If we have no function set_volume(), then the soft volume
1682 * becomes the real volume */
1683 root_source->soft_volume = root_source->real_volume;
1685 /* This tells the source that soft volume and/or real volume changed */
1687 pa_assert_se(pa_asyncmsgq_send(root_source->asyncmsgq, PA_MSGOBJECT(root_source), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1690 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1691 * Only to be called by source implementor */
1692 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
1694 pa_source_assert_ref(s);
1695 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1697 if (s->flags & PA_SOURCE_DEFERRED_VOLUME)
1698 pa_source_assert_io_context(s);
1700 pa_assert_ctl_context();
1703 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
1705 s->soft_volume = *volume;
1707 if (PA_SOURCE_IS_LINKED(s->state) && !(s->flags & PA_SOURCE_DEFERRED_VOLUME))
1708 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
1710 s->thread_info.soft_volume = s->soft_volume;
1713 /* Called from the main thread. Only called for the root source in volume sharing
1714 * cases, except for internal recursive calls. */
1715 static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volume) {
1716 pa_source_output *o;
1719 pa_source_assert_ref(s);
1720 pa_assert(old_real_volume);
1721 pa_assert_ctl_context();
1722 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1724 /* This is called when the hardware's real volume changes due to
1725 * some external event. We copy the real volume into our
1726 * reference volume and then rebuild the stream volumes based on
1727 * i->real_ratio which should stay fixed. */
1729 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1730 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
1733 /* 1. Make the real volume the reference volume */
1734 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
1737 if (pa_source_flat_volume_enabled(s)) {
1738 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1739 pa_cvolume new_volume;
1741 /* 2. Since the source's reference and real volumes are equal
1742 * now our ratios should be too. */
1743 pa_source_output_set_reference_ratio(o, &o->real_ratio);
1745 /* 3. Recalculate the new stream reference volume based on the
1746 * reference ratio and the sink's reference volume.
1748 * This basically calculates:
1750 * o->volume = s->reference_volume * o->reference_ratio
1752 * This is identical to propagate_reference_volume() */
1753 new_volume = s->reference_volume;
1754 pa_cvolume_remap(&new_volume, &s->channel_map, &o->channel_map);
1755 pa_sw_cvolume_multiply(&new_volume, &new_volume, &o->reference_ratio);
1756 pa_source_output_set_volume_direct(o, &new_volume);
1758 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1759 propagate_real_volume(o->destination_source, old_real_volume);
1763 /* Something got changed in the hardware. It probably makes sense
1764 * to save changed hw settings given that hw volume changes not
1765 * triggered by PA are almost certainly done by the user. */
1766 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1767 s->save_volume = true;
1770 /* Called from io thread */
1771 void pa_source_update_volume_and_mute(pa_source *s) {
1773 pa_source_assert_io_context(s);
1775 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
1778 /* Called from main thread */
1779 const pa_cvolume *pa_source_get_volume(pa_source *s, bool force_refresh) {
1780 pa_source_assert_ref(s);
1781 pa_assert_ctl_context();
1782 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1784 if (s->refresh_volume || force_refresh) {
1785 struct pa_cvolume old_real_volume;
1787 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1789 old_real_volume = s->real_volume;
1791 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume)
1794 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
1796 update_real_volume(s, &s->real_volume, &s->channel_map);
1797 propagate_real_volume(s, &old_real_volume);
1800 return &s->reference_volume;
1803 /* Called from main thread. In volume sharing cases, only the root source may
1805 void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_real_volume) {
1806 pa_cvolume old_real_volume;
1808 pa_source_assert_ref(s);
1809 pa_assert_ctl_context();
1810 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1811 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1813 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1815 old_real_volume = s->real_volume;
1816 update_real_volume(s, new_real_volume, &s->channel_map);
1817 propagate_real_volume(s, &old_real_volume);
1820 /* Called from main thread */
1821 void pa_source_set_mute(pa_source *s, bool mute, bool save) {
1824 pa_source_assert_ref(s);
1825 pa_assert_ctl_context();
1827 old_muted = s->muted;
1829 if (mute == old_muted) {
1830 s->save_muted |= save;
1835 s->save_muted = save;
1837 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->set_mute) {
1838 s->set_mute_in_progress = true;
1840 s->set_mute_in_progress = false;
1843 if (!PA_SOURCE_IS_LINKED(s->state))
1846 pa_log_debug("The mute of source %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
1847 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1848 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1849 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_MUTE_CHANGED], s);
1852 /* Called from main thread */
1853 bool pa_source_get_mute(pa_source *s, bool force_refresh) {
1855 pa_source_assert_ref(s);
1856 pa_assert_ctl_context();
1857 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1859 if ((s->refresh_muted || force_refresh) && s->get_mute) {
1862 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
1863 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
1864 pa_source_mute_changed(s, mute);
1866 if (s->get_mute(s, &mute) >= 0)
1867 pa_source_mute_changed(s, mute);
1874 /* Called from main thread */
1875 void pa_source_mute_changed(pa_source *s, bool new_muted) {
1876 pa_source_assert_ref(s);
1877 pa_assert_ctl_context();
1878 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1880 if (s->set_mute_in_progress)
1883 /* pa_source_set_mute() does this same check, so this may appear redundant,
1884 * but we must have this here also, because the save parameter of
1885 * pa_source_set_mute() would otherwise have unintended side effects
1886 * (saving the mute state when it shouldn't be saved). */
1887 if (new_muted == s->muted)
1890 pa_source_set_mute(s, new_muted, true);
1893 /* Called from main thread */
1894 bool pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
1895 pa_source_assert_ref(s);
1896 pa_assert_ctl_context();
1899 pa_proplist_update(s->proplist, mode, p);
1901 if (PA_SOURCE_IS_LINKED(s->state)) {
1902 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1903 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1909 /* Called from main thread */
1910 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1911 void pa_source_set_description(pa_source *s, const char *description) {
1913 pa_source_assert_ref(s);
1914 pa_assert_ctl_context();
1916 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
1919 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1921 if (old && description && pa_streq(old, description))
1925 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
1927 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1929 if (PA_SOURCE_IS_LINKED(s->state)) {
1930 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1931 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1935 /* Called from main thread */
1936 unsigned pa_source_linked_by(pa_source *s) {
1937 pa_source_assert_ref(s);
1938 pa_assert_ctl_context();
1939 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1941 return pa_idxset_size(s->outputs);
1944 /* Called from main thread */
1945 unsigned pa_source_used_by(pa_source *s) {
1948 pa_source_assert_ref(s);
1949 pa_assert_ctl_context();
1950 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1952 ret = pa_idxset_size(s->outputs);
1953 pa_assert(ret >= s->n_corked);
1955 return ret - s->n_corked;
1958 /* Called from main thread */
1959 unsigned pa_source_check_suspend(pa_source *s, pa_source_output *ignore) {
1961 pa_source_output *o;
1964 pa_source_assert_ref(s);
1965 pa_assert_ctl_context();
1967 if (!PA_SOURCE_IS_LINKED(s->state))
1972 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1973 pa_source_output_state_t st;
1978 st = pa_source_output_get_state(o);
1980 /* We do not assert here. It is perfectly valid for a source output to
1981 * be in the INIT state (i.e. created, marked done but not yet put)
1982 * and we should not care if it's unlinked as it won't contribute
1983 * towards our busy status.
1985 if (!PA_SOURCE_OUTPUT_IS_LINKED(st))
1988 if (st == PA_SOURCE_OUTPUT_CORKED)
1991 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
2000 /* Called from the IO thread */
2001 static void sync_output_volumes_within_thread(pa_source *s) {
2002 pa_source_output *o;
2005 pa_source_assert_ref(s);
2006 pa_source_assert_io_context(s);
2008 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
2009 if (pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume))
2012 o->thread_info.soft_volume = o->soft_volume;
2013 //pa_source_output_request_rewind(o, 0, true, false, false);
2017 /* Called from the IO thread. Only called for the root source in volume sharing
2018 * cases, except for internal recursive calls. */
2019 static void set_shared_volume_within_thread(pa_source *s) {
2020 pa_source_output *o;
2023 pa_source_assert_ref(s);
2025 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2027 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
2028 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
2029 set_shared_volume_within_thread(o->destination_source);
2033 /* Called from IO thread, except when it is not */
2034 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2035 pa_source *s = PA_SOURCE(object);
2036 pa_source_assert_ref(s);
2038 switch ((pa_source_message_t) code) {
2040 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
2041 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
2043 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
2045 if (o->direct_on_input) {
2046 o->thread_info.direct_on_input = o->direct_on_input;
2047 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
2050 pa_source_output_attach(o);
2052 pa_source_output_set_state_within_thread(o, o->state);
2054 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
2055 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
2057 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2059 /* We don't just invalidate the requested latency here,
2060 * because if we are in a move we might need to fix up the
2061 * requested latency. */
2062 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
2064 /* In flat volume mode we need to update the volume as
2066 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2069 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
2070 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
2072 pa_source_output_set_state_within_thread(o, o->state);
2074 pa_source_output_detach(o);
2076 if (o->thread_info.direct_on_input) {
2077 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
2078 o->thread_info.direct_on_input = NULL;
2081 pa_hashmap_remove_and_free(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index));
2082 pa_source_invalidate_requested_latency(s, true);
2084 /* In flat volume mode we need to update the volume as
2086 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2089 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME: {
2090 pa_source *root_source = pa_source_get_master(s);
2092 if (PA_LIKELY(root_source))
2093 set_shared_volume_within_thread(root_source);
2098 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED:
2100 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2102 pa_source_volume_change_push(s);
2104 /* Fall through ... */
2106 case PA_SOURCE_MESSAGE_SET_VOLUME:
2108 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2109 s->thread_info.soft_volume = s->soft_volume;
2112 /* Fall through ... */
2114 case PA_SOURCE_MESSAGE_SYNC_VOLUMES:
2115 sync_output_volumes_within_thread(s);
2118 case PA_SOURCE_MESSAGE_GET_VOLUME:
2120 if ((s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume) {
2122 pa_source_volume_change_flush(s);
2123 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2126 /* In case source implementor reset SW volume. */
2127 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2128 s->thread_info.soft_volume = s->soft_volume;
2133 case PA_SOURCE_MESSAGE_SET_MUTE:
2135 if (s->thread_info.soft_muted != s->muted) {
2136 s->thread_info.soft_muted = s->muted;
2139 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->set_mute)
2144 case PA_SOURCE_MESSAGE_GET_MUTE:
2146 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->get_mute)
2147 return s->get_mute(s, userdata);
2151 case PA_SOURCE_MESSAGE_SET_STATE: {
2153 bool suspend_change =
2154 (s->thread_info.state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2155 (PA_SOURCE_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SOURCE_SUSPENDED);
2157 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2159 if (suspend_change) {
2160 pa_source_output *o;
2163 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2164 if (o->suspend_within_thread)
2165 o->suspend_within_thread(o, s->thread_info.state == PA_SOURCE_SUSPENDED);
2171 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
2173 pa_usec_t *usec = userdata;
2174 *usec = pa_source_get_requested_latency_within_thread(s);
2176 /* Yes, that's right, the IO thread will see -1 when no
2177 * explicit requested latency is configured, the main
2178 * thread will see max_latency */
2179 if (*usec == (pa_usec_t) -1)
2180 *usec = s->thread_info.max_latency;
2185 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
2186 pa_usec_t *r = userdata;
2188 pa_source_set_latency_range_within_thread(s, r[0], r[1]);
2193 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
2194 pa_usec_t *r = userdata;
2196 r[0] = s->thread_info.min_latency;
2197 r[1] = s->thread_info.max_latency;
2202 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY:
2204 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2207 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY:
2209 pa_source_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2212 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
2214 *((size_t*) userdata) = s->thread_info.max_rewind;
2217 case PA_SOURCE_MESSAGE_SET_MAX_REWIND:
2219 pa_source_set_max_rewind_within_thread(s, (size_t) offset);
2222 case PA_SOURCE_MESSAGE_GET_LATENCY:
2224 if (s->monitor_of) {
2225 *((pa_usec_t*) userdata) = 0;
2229 /* Implementors need to overwrite this implementation! */
2232 case PA_SOURCE_MESSAGE_SET_PORT:
2234 pa_assert(userdata);
2236 struct source_message_set_port *msg_data = userdata;
2237 msg_data->ret = s->set_port(s, msg_data->port);
2241 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2242 /* This message is sent from IO-thread and handled in main thread. */
2243 pa_assert_ctl_context();
2245 /* Make sure we're not messing with main thread when no longer linked */
2246 if (!PA_SOURCE_IS_LINKED(s->state))
2249 pa_source_get_volume(s, true);
2250 pa_source_get_mute(s, true);
2253 case PA_SOURCE_MESSAGE_SET_PORT_LATENCY_OFFSET:
2254 s->thread_info.port_latency_offset = offset;
2257 case PA_SOURCE_MESSAGE_MAX:
2264 /* Called from main thread */
2265 int pa_source_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2270 pa_core_assert_ref(c);
2271 pa_assert_ctl_context();
2272 pa_assert(cause != 0);
2274 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx))) {
2277 if (source->monitor_of)
2280 if ((r = pa_source_suspend(source, suspend, cause)) < 0)
2287 /* Called from IO thread */
2288 void pa_source_detach_within_thread(pa_source *s) {
2289 pa_source_output *o;
2292 pa_source_assert_ref(s);
2293 pa_source_assert_io_context(s);
2294 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2296 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2297 pa_source_output_detach(o);
2300 /* Called from IO thread */
2301 void pa_source_attach_within_thread(pa_source *s) {
2302 pa_source_output *o;
2305 pa_source_assert_ref(s);
2306 pa_source_assert_io_context(s);
2307 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2309 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2310 pa_source_output_attach(o);
2313 /* Called from IO thread */
2314 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
2315 pa_usec_t result = (pa_usec_t) -1;
2316 pa_source_output *o;
2319 pa_source_assert_ref(s);
2320 pa_source_assert_io_context(s);
2322 if (!(s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2323 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2325 if (s->thread_info.requested_latency_valid)
2326 return s->thread_info.requested_latency;
2328 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2329 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
2330 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
2331 result = o->thread_info.requested_source_latency;
2333 if (result != (pa_usec_t) -1)
2334 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2336 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2337 /* Only cache this if we are fully set up */
2338 s->thread_info.requested_latency = result;
2339 s->thread_info.requested_latency_valid = true;
2345 /* Called from main thread */
2346 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
2349 pa_source_assert_ref(s);
2350 pa_assert_ctl_context();
2351 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2353 if (s->state == PA_SOURCE_SUSPENDED)
2356 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2361 /* Called from IO thread */
2362 void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind) {
2363 pa_source_output *o;
2366 pa_source_assert_ref(s);
2367 pa_source_assert_io_context(s);
2369 if (max_rewind == s->thread_info.max_rewind)
2372 s->thread_info.max_rewind = max_rewind;
2374 if (PA_SOURCE_IS_LINKED(s->thread_info.state))
2375 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2376 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2379 /* Called from main thread */
2380 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
2381 pa_source_assert_ref(s);
2382 pa_assert_ctl_context();
2384 if (PA_SOURCE_IS_LINKED(s->state))
2385 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
2387 pa_source_set_max_rewind_within_thread(s, max_rewind);
2390 /* Called from IO thread */
2391 void pa_source_invalidate_requested_latency(pa_source *s, bool dynamic) {
2392 pa_source_output *o;
2395 pa_source_assert_ref(s);
2396 pa_source_assert_io_context(s);
2398 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2399 s->thread_info.requested_latency_valid = false;
2403 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2405 if (s->update_requested_latency)
2406 s->update_requested_latency(s);
2408 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2409 if (o->update_source_requested_latency)
2410 o->update_source_requested_latency(o);
2414 pa_sink_invalidate_requested_latency(s->monitor_of, dynamic);
2417 /* Called from main thread */
2418 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2419 pa_source_assert_ref(s);
2420 pa_assert_ctl_context();
2422 /* min_latency == 0: no limit
2423 * min_latency anything else: specified limit
2425 * Similar for max_latency */
2427 if (min_latency < ABSOLUTE_MIN_LATENCY)
2428 min_latency = ABSOLUTE_MIN_LATENCY;
2430 if (max_latency <= 0 ||
2431 max_latency > ABSOLUTE_MAX_LATENCY)
2432 max_latency = ABSOLUTE_MAX_LATENCY;
2434 pa_assert(min_latency <= max_latency);
2436 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2437 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2438 max_latency == ABSOLUTE_MAX_LATENCY) ||
2439 (s->flags & PA_SOURCE_DYNAMIC_LATENCY));
2441 if (PA_SOURCE_IS_LINKED(s->state)) {
2447 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
2449 pa_source_set_latency_range_within_thread(s, min_latency, max_latency);
2452 /* Called from main thread */
2453 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
2454 pa_source_assert_ref(s);
2455 pa_assert_ctl_context();
2456 pa_assert(min_latency);
2457 pa_assert(max_latency);
2459 if (PA_SOURCE_IS_LINKED(s->state)) {
2460 pa_usec_t r[2] = { 0, 0 };
2462 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
2464 *min_latency = r[0];
2465 *max_latency = r[1];
2467 *min_latency = s->thread_info.min_latency;
2468 *max_latency = s->thread_info.max_latency;
2472 /* Called from IO thread, and from main thread before pa_source_put() is called */
2473 void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2474 pa_source_assert_ref(s);
2475 pa_source_assert_io_context(s);
2477 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
2478 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
2479 pa_assert(min_latency <= max_latency);
2481 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2482 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2483 max_latency == ABSOLUTE_MAX_LATENCY) ||
2484 (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ||
2487 if (s->thread_info.min_latency == min_latency &&
2488 s->thread_info.max_latency == max_latency)
2491 s->thread_info.min_latency = min_latency;
2492 s->thread_info.max_latency = max_latency;
2494 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2495 pa_source_output *o;
2498 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2499 if (o->update_source_latency_range)
2500 o->update_source_latency_range(o);
2503 pa_source_invalidate_requested_latency(s, false);
2506 /* Called from main thread, before the source is put */
2507 void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency) {
2508 pa_source_assert_ref(s);
2509 pa_assert_ctl_context();
2511 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2512 pa_assert(latency == 0);
2516 if (latency < ABSOLUTE_MIN_LATENCY)
2517 latency = ABSOLUTE_MIN_LATENCY;
2519 if (latency > ABSOLUTE_MAX_LATENCY)
2520 latency = ABSOLUTE_MAX_LATENCY;
2522 if (PA_SOURCE_IS_LINKED(s->state))
2523 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
2525 s->thread_info.fixed_latency = latency;
2528 /* Called from main thread */
2529 pa_usec_t pa_source_get_fixed_latency(pa_source *s) {
2532 pa_source_assert_ref(s);
2533 pa_assert_ctl_context();
2535 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY)
2538 if (PA_SOURCE_IS_LINKED(s->state))
2539 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
2541 latency = s->thread_info.fixed_latency;
2546 /* Called from IO thread */
2547 void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency) {
2548 pa_source_assert_ref(s);
2549 pa_source_assert_io_context(s);
2551 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2552 pa_assert(latency == 0);
2553 s->thread_info.fixed_latency = 0;
2558 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
2559 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
2561 if (s->thread_info.fixed_latency == latency)
2564 s->thread_info.fixed_latency = latency;
2566 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2567 pa_source_output *o;
2570 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2571 if (o->update_source_fixed_latency)
2572 o->update_source_fixed_latency(o);
2575 pa_source_invalidate_requested_latency(s, false);
2578 /* Called from main thread */
2579 void pa_source_set_port_latency_offset(pa_source *s, int64_t offset) {
2580 pa_source_assert_ref(s);
2582 s->port_latency_offset = offset;
2584 if (PA_SOURCE_IS_LINKED(s->state))
2585 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
2587 s->thread_info.port_latency_offset = offset;
2589 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_LATENCY_OFFSET_CHANGED], s);
2592 /* Called from main thread */
2593 size_t pa_source_get_max_rewind(pa_source *s) {
2595 pa_assert_ctl_context();
2596 pa_source_assert_ref(s);
2598 if (!PA_SOURCE_IS_LINKED(s->state))
2599 return s->thread_info.max_rewind;
2601 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
2606 /* Called from main context */
2607 int pa_source_set_port(pa_source *s, const char *name, bool save) {
2608 pa_device_port *port;
2611 pa_source_assert_ref(s);
2612 pa_assert_ctl_context();
2615 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s->index, s->name);
2616 return -PA_ERR_NOTIMPLEMENTED;
2620 return -PA_ERR_NOENTITY;
2622 if (!(port = pa_hashmap_get(s->ports, name)))
2623 return -PA_ERR_NOENTITY;
2625 if (s->active_port == port) {
2626 s->save_port = s->save_port || save;
2630 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2631 struct source_message_set_port msg = { .port = port, .ret = 0 };
2632 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
2636 ret = s->set_port(s, port);
2639 return -PA_ERR_NOENTITY;
2641 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2643 pa_log_info("Changed port of source %u \"%s\" to %s", s->index, s->name, port->name);
2645 s->active_port = port;
2646 s->save_port = save;
2648 pa_source_set_port_latency_offset(s, s->active_port->latency_offset);
2650 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_CHANGED], s);
2655 PA_STATIC_FLIST_DECLARE(pa_source_volume_change, 0, pa_xfree);
2657 /* Called from the IO thread. */
2658 static pa_source_volume_change *pa_source_volume_change_new(pa_source *s) {
2659 pa_source_volume_change *c;
2660 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change))))
2661 c = pa_xnew(pa_source_volume_change, 1);
2663 PA_LLIST_INIT(pa_source_volume_change, c);
2665 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
2669 /* Called from the IO thread. */
2670 static void pa_source_volume_change_free(pa_source_volume_change *c) {
2672 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change), c) < 0)
2676 /* Called from the IO thread. */
2677 void pa_source_volume_change_push(pa_source *s) {
2678 pa_source_volume_change *c = NULL;
2679 pa_source_volume_change *nc = NULL;
2680 pa_source_volume_change *pc = NULL;
2681 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
2683 const char *direction = NULL;
2686 nc = pa_source_volume_change_new(s);
2688 /* NOTE: There is already more different volumes in pa_source that I can remember.
2689 * Adding one more volume for HW would get us rid of this, but I am trying
2690 * to survive with the ones we already have. */
2691 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
2693 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
2694 pa_log_debug("Volume not changing");
2695 pa_source_volume_change_free(nc);
2699 nc->at = pa_source_get_latency_within_thread(s);
2700 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
2702 if (s->thread_info.volume_changes_tail) {
2703 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
2704 /* If volume is going up let's do it a bit late. If it is going
2705 * down let's do it a bit early. */
2706 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
2707 if (nc->at + safety_margin > c->at) {
2708 nc->at += safety_margin;
2713 else if (nc->at - safety_margin > c->at) {
2714 nc->at -= safety_margin;
2722 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
2723 nc->at += safety_margin;
2726 nc->at -= safety_margin;
2729 PA_LLIST_PREPEND(pa_source_volume_change, s->thread_info.volume_changes, nc);
2732 PA_LLIST_INSERT_AFTER(pa_source_volume_change, s->thread_info.volume_changes, c, nc);
2735 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
2737 /* We can ignore volume events that came earlier but should happen later than this. */
2738 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
2739 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
2740 pa_source_volume_change_free(c);
2743 s->thread_info.volume_changes_tail = nc;
2746 /* Called from the IO thread. */
2747 static void pa_source_volume_change_flush(pa_source *s) {
2748 pa_source_volume_change *c = s->thread_info.volume_changes;
2750 s->thread_info.volume_changes = NULL;
2751 s->thread_info.volume_changes_tail = NULL;
2753 pa_source_volume_change *next = c->next;
2754 pa_source_volume_change_free(c);
2759 /* Called from the IO thread. */
2760 bool pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next) {
2766 if (!s->thread_info.volume_changes || !PA_SOURCE_IS_LINKED(s->state)) {
2772 pa_assert(s->write_volume);
2774 now = pa_rtclock_now();
2776 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
2777 pa_source_volume_change *c = s->thread_info.volume_changes;
2778 PA_LLIST_REMOVE(pa_source_volume_change, s->thread_info.volume_changes, c);
2779 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2780 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
2782 s->thread_info.current_hw_volume = c->hw_volume;
2783 pa_source_volume_change_free(c);
2789 if (s->thread_info.volume_changes) {
2791 *usec_to_next = s->thread_info.volume_changes->at - now;
2792 if (pa_log_ratelimit(PA_LOG_DEBUG))
2793 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
2798 s->thread_info.volume_changes_tail = NULL;
2803 /* Called from the main thread */
2804 /* Gets the list of formats supported by the source. The members and idxset must
2805 * be freed by the caller. */
2806 pa_idxset* pa_source_get_formats(pa_source *s) {
2811 if (s->get_formats) {
2812 /* Source supports format query, all is good */
2813 ret = s->get_formats(s);
2815 /* Source doesn't support format query, so assume it does PCM */
2816 pa_format_info *f = pa_format_info_new();
2817 f->encoding = PA_ENCODING_PCM;
2819 ret = pa_idxset_new(NULL, NULL);
2820 pa_idxset_put(ret, f, NULL);
2826 /* Called from the main thread */
2827 /* Checks if the source can accept this format */
2828 bool pa_source_check_format(pa_source *s, pa_format_info *f) {
2829 pa_idxset *formats = NULL;
2835 formats = pa_source_get_formats(s);
2838 pa_format_info *finfo_device;
2841 PA_IDXSET_FOREACH(finfo_device, formats, i) {
2842 if (pa_format_info_is_compatible(finfo_device, f)) {
2848 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
2854 /* Called from the main thread */
2855 /* Calculates the intersection between formats supported by the source and
2856 * in_formats, and returns these, in the order of the source's formats. */
2857 pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats) {
2858 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *source_formats = NULL;
2859 pa_format_info *f_source, *f_in;
2864 if (!in_formats || pa_idxset_isempty(in_formats))
2867 source_formats = pa_source_get_formats(s);
2869 PA_IDXSET_FOREACH(f_source, source_formats, i) {
2870 PA_IDXSET_FOREACH(f_in, in_formats, j) {
2871 if (pa_format_info_is_compatible(f_source, f_in))
2872 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
2878 pa_idxset_free(source_formats, (pa_free_cb_t) pa_format_info_free);
2883 /* Called from the main thread. */
2884 void pa_source_set_reference_volume_direct(pa_source *s, const pa_cvolume *volume) {
2885 pa_cvolume old_volume;
2886 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
2887 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
2892 old_volume = s->reference_volume;
2894 if (pa_cvolume_equal(volume, &old_volume))
2897 s->reference_volume = *volume;
2898 pa_log_debug("The reference volume of source %s changed from %s to %s.", s->name,
2899 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
2900 s->flags & PA_SOURCE_DECIBEL_VOLUME),
2901 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
2902 s->flags & PA_SOURCE_DECIBEL_VOLUME));
2904 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2905 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_VOLUME_CHANGED], s);