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 if (o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1150 /* usec is unsigned, so check that the offset can be added to usec without
1152 if (-s->thread_info.port_latency_offset <= (int64_t) usec)
1153 usec += s->thread_info.port_latency_offset;
1160 /* Called from the main thread (and also from the IO thread while the main
1161 * thread is waiting).
1163 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
1164 * set. Instead, flat volume mode is detected by checking whether the root source
1165 * has the flag set. */
1166 bool pa_source_flat_volume_enabled(pa_source *s) {
1167 pa_source_assert_ref(s);
1169 s = pa_source_get_master(s);
1172 return (s->flags & PA_SOURCE_FLAT_VOLUME);
1177 /* Called from the main thread (and also from the IO thread while the main
1178 * thread is waiting). */
1179 pa_source *pa_source_get_master(pa_source *s) {
1180 pa_source_assert_ref(s);
1182 while (s && (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1183 if (PA_UNLIKELY(!s->output_from_master))
1186 s = s->output_from_master->source;
1192 /* Called from main context */
1193 bool pa_source_is_filter(pa_source *s) {
1194 pa_source_assert_ref(s);
1196 return (s->output_from_master != NULL);
1199 /* Called from main context */
1200 bool pa_source_is_passthrough(pa_source *s) {
1202 pa_source_assert_ref(s);
1204 /* NB Currently only monitor sources support passthrough mode */
1205 return (s->monitor_of && pa_sink_is_passthrough(s->monitor_of));
1208 /* Called from main context */
1209 void pa_source_enter_passthrough(pa_source *s) {
1212 /* set the volume to NORM */
1213 s->saved_volume = *pa_source_get_volume(s, true);
1214 s->saved_save_volume = s->save_volume;
1216 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1217 pa_source_set_volume(s, &volume, true, false);
1220 /* Called from main context */
1221 void pa_source_leave_passthrough(pa_source *s) {
1222 /* Restore source volume to what it was before we entered passthrough mode */
1223 pa_source_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1225 pa_cvolume_init(&s->saved_volume);
1226 s->saved_save_volume = false;
1229 /* Called from main context. */
1230 static void compute_reference_ratio(pa_source_output *o) {
1232 pa_cvolume remapped;
1236 pa_assert(pa_source_flat_volume_enabled(o->source));
1239 * Calculates the reference ratio from the source's reference
1240 * volume. This basically calculates:
1242 * o->reference_ratio = o->volume / o->source->reference_volume
1245 remapped = o->source->reference_volume;
1246 pa_cvolume_remap(&remapped, &o->source->channel_map, &o->channel_map);
1248 ratio = o->reference_ratio;
1250 for (c = 0; c < o->sample_spec.channels; c++) {
1252 /* We don't update when the source volume is 0 anyway */
1253 if (remapped.values[c] <= PA_VOLUME_MUTED)
1256 /* Don't update the reference ratio unless necessary */
1257 if (pa_sw_volume_multiply(
1259 remapped.values[c]) == o->volume.values[c])
1262 ratio.values[c] = pa_sw_volume_divide(
1263 o->volume.values[c],
1264 remapped.values[c]);
1267 pa_source_output_set_reference_ratio(o, &ratio);
1270 /* Called from main context. Only called for the root source in volume sharing
1271 * cases, except for internal recursive calls. */
1272 static void compute_reference_ratios(pa_source *s) {
1274 pa_source_output *o;
1276 pa_source_assert_ref(s);
1277 pa_assert_ctl_context();
1278 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1279 pa_assert(pa_source_flat_volume_enabled(s));
1281 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1282 compute_reference_ratio(o);
1284 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1285 compute_reference_ratios(o->destination_source);
1289 /* Called from main context. Only called for the root source in volume sharing
1290 * cases, except for internal recursive calls. */
1291 static void compute_real_ratios(pa_source *s) {
1292 pa_source_output *o;
1295 pa_source_assert_ref(s);
1296 pa_assert_ctl_context();
1297 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1298 pa_assert(pa_source_flat_volume_enabled(s));
1300 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1302 pa_cvolume remapped;
1304 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1305 /* The origin source uses volume sharing, so this input's real ratio
1306 * is handled as a special case - the real ratio must be 0 dB, and
1307 * as a result i->soft_volume must equal i->volume_factor. */
1308 pa_cvolume_reset(&o->real_ratio, o->real_ratio.channels);
1309 o->soft_volume = o->volume_factor;
1311 compute_real_ratios(o->destination_source);
1317 * This basically calculates:
1319 * i->real_ratio := i->volume / s->real_volume
1320 * i->soft_volume := i->real_ratio * i->volume_factor
1323 remapped = s->real_volume;
1324 pa_cvolume_remap(&remapped, &s->channel_map, &o->channel_map);
1326 o->real_ratio.channels = o->sample_spec.channels;
1327 o->soft_volume.channels = o->sample_spec.channels;
1329 for (c = 0; c < o->sample_spec.channels; c++) {
1331 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1332 /* We leave o->real_ratio untouched */
1333 o->soft_volume.values[c] = PA_VOLUME_MUTED;
1337 /* Don't lose accuracy unless necessary */
1338 if (pa_sw_volume_multiply(
1339 o->real_ratio.values[c],
1340 remapped.values[c]) != o->volume.values[c])
1342 o->real_ratio.values[c] = pa_sw_volume_divide(
1343 o->volume.values[c],
1344 remapped.values[c]);
1346 o->soft_volume.values[c] = pa_sw_volume_multiply(
1347 o->real_ratio.values[c],
1348 o->volume_factor.values[c]);
1351 /* We don't copy the soft_volume to the thread_info data
1352 * here. That must be done by the caller */
1356 static pa_cvolume *cvolume_remap_minimal_impact(
1358 const pa_cvolume *template,
1359 const pa_channel_map *from,
1360 const pa_channel_map *to) {
1365 pa_assert(template);
1368 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1369 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1371 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1372 * mapping from source output to source volumes:
1374 * If template is a possible remapping from v it is used instead
1375 * of remapping anew.
1377 * If the channel maps don't match we set an all-channel volume on
1378 * the source to ensure that changing a volume on one stream has no
1379 * effect that cannot be compensated for in another stream that
1380 * does not have the same channel map as the source. */
1382 if (pa_channel_map_equal(from, to))
1386 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1391 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1395 /* Called from main thread. Only called for the root source in volume sharing
1396 * cases, except for internal recursive calls. */
1397 static void get_maximum_output_volume(pa_source *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1398 pa_source_output *o;
1401 pa_source_assert_ref(s);
1402 pa_assert(max_volume);
1403 pa_assert(channel_map);
1404 pa_assert(pa_source_flat_volume_enabled(s));
1406 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1407 pa_cvolume remapped;
1409 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1410 get_maximum_output_volume(o->destination_source, max_volume, channel_map);
1412 /* Ignore this output. The origin source uses volume sharing, so this
1413 * output's volume will be set to be equal to the root source's real
1414 * volume. Obviously this output's current volume must not then
1415 * affect what the root source's real volume will be. */
1419 remapped = o->volume;
1420 cvolume_remap_minimal_impact(&remapped, max_volume, &o->channel_map, channel_map);
1421 pa_cvolume_merge(max_volume, max_volume, &remapped);
1425 /* Called from main thread. Only called for the root source in volume sharing
1426 * cases, except for internal recursive calls. */
1427 static bool has_outputs(pa_source *s) {
1428 pa_source_output *o;
1431 pa_source_assert_ref(s);
1433 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1434 if (!o->destination_source || !(o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || has_outputs(o->destination_source))
1441 /* Called from main thread. Only called for the root source in volume sharing
1442 * cases, except for internal recursive calls. */
1443 static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1444 pa_source_output *o;
1447 pa_source_assert_ref(s);
1448 pa_assert(new_volume);
1449 pa_assert(channel_map);
1451 s->real_volume = *new_volume;
1452 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1454 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1455 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1456 if (pa_source_flat_volume_enabled(s)) {
1457 pa_cvolume new_output_volume;
1459 /* Follow the root source's real volume. */
1460 new_output_volume = *new_volume;
1461 pa_cvolume_remap(&new_output_volume, channel_map, &o->channel_map);
1462 pa_source_output_set_volume_direct(o, &new_output_volume);
1463 compute_reference_ratio(o);
1466 update_real_volume(o->destination_source, new_volume, channel_map);
1471 /* Called from main thread. Only called for the root source in shared volume
1473 static void compute_real_volume(pa_source *s) {
1474 pa_source_assert_ref(s);
1475 pa_assert_ctl_context();
1476 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1477 pa_assert(pa_source_flat_volume_enabled(s));
1478 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1480 /* This determines the maximum volume of all streams and sets
1481 * s->real_volume accordingly. */
1483 if (!has_outputs(s)) {
1484 /* In the special case that we have no source outputs we leave the
1485 * volume unmodified. */
1486 update_real_volume(s, &s->reference_volume, &s->channel_map);
1490 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1492 /* First let's determine the new maximum volume of all outputs
1493 * connected to this source */
1494 get_maximum_output_volume(s, &s->real_volume, &s->channel_map);
1495 update_real_volume(s, &s->real_volume, &s->channel_map);
1497 /* Then, let's update the real ratios/soft volumes of all outputs
1498 * connected to this source */
1499 compute_real_ratios(s);
1502 /* Called from main thread. Only called for the root source in shared volume
1503 * cases, except for internal recursive calls. */
1504 static void propagate_reference_volume(pa_source *s) {
1505 pa_source_output *o;
1508 pa_source_assert_ref(s);
1509 pa_assert_ctl_context();
1510 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1511 pa_assert(pa_source_flat_volume_enabled(s));
1513 /* This is called whenever the source volume changes that is not
1514 * caused by a source output volume change. We need to fix up the
1515 * source output volumes accordingly */
1517 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1518 pa_cvolume new_volume;
1520 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1521 propagate_reference_volume(o->destination_source);
1523 /* Since the origin source uses volume sharing, this output's volume
1524 * needs to be updated to match the root source's real volume, but
1525 * that will be done later in update_shared_real_volume(). */
1529 /* This basically calculates:
1531 * o->volume := o->reference_volume * o->reference_ratio */
1533 new_volume = s->reference_volume;
1534 pa_cvolume_remap(&new_volume, &s->channel_map, &o->channel_map);
1535 pa_sw_cvolume_multiply(&new_volume, &new_volume, &o->reference_ratio);
1536 pa_source_output_set_volume_direct(o, &new_volume);
1540 /* Called from main thread. Only called for the root source in volume sharing
1541 * cases, except for internal recursive calls. The return value indicates
1542 * whether any reference volume actually changed. */
1543 static bool update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
1545 bool reference_volume_changed;
1546 pa_source_output *o;
1549 pa_source_assert_ref(s);
1550 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1552 pa_assert(channel_map);
1553 pa_assert(pa_cvolume_valid(v));
1556 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1558 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1559 pa_source_set_reference_volume_direct(s, &volume);
1561 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1563 if (!reference_volume_changed && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1564 /* If the root source's volume doesn't change, then there can't be any
1565 * changes in the other source in the source tree either.
1567 * It's probably theoretically possible that even if the root source's
1568 * volume changes slightly, some filter source doesn't change its volume
1569 * due to rounding errors. If that happens, we still want to propagate
1570 * the changed root source volume to the sources connected to the
1571 * intermediate source that didn't change its volume. This theoretical
1572 * possibility is the reason why we have that !(s->flags &
1573 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1574 * notice even if we returned here false always if
1575 * reference_volume_changed is false. */
1578 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1579 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1580 update_reference_volume(o->destination_source, v, channel_map, false);
1586 /* Called from main thread */
1587 void pa_source_set_volume(
1589 const pa_cvolume *volume,
1593 pa_cvolume new_reference_volume, root_real_volume;
1594 pa_source *root_source;
1596 pa_source_assert_ref(s);
1597 pa_assert_ctl_context();
1598 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1599 pa_assert(!volume || pa_cvolume_valid(volume));
1600 pa_assert(volume || pa_source_flat_volume_enabled(s));
1601 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1603 /* make sure we don't change the volume in PASSTHROUGH mode ...
1604 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1605 if (pa_source_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1606 pa_log_warn("Cannot change volume, source is monitor of a PASSTHROUGH sink");
1610 /* In case of volume sharing, the volume is set for the root source first,
1611 * from which it's then propagated to the sharing sources. */
1612 root_source = pa_source_get_master(s);
1614 if (PA_UNLIKELY(!root_source))
1617 /* As a special exception we accept mono volumes on all sources --
1618 * even on those with more complex channel maps */
1621 if (pa_cvolume_compatible(volume, &s->sample_spec))
1622 new_reference_volume = *volume;
1624 new_reference_volume = s->reference_volume;
1625 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1628 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1630 if (update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save)) {
1631 if (pa_source_flat_volume_enabled(root_source)) {
1632 /* OK, propagate this volume change back to the outputs */
1633 propagate_reference_volume(root_source);
1635 /* And now recalculate the real volume */
1636 compute_real_volume(root_source);
1638 update_real_volume(root_source, &root_source->reference_volume, &root_source->channel_map);
1642 /* If volume is NULL we synchronize the source's real and
1643 * reference volumes with the stream volumes. */
1645 pa_assert(pa_source_flat_volume_enabled(root_source));
1647 /* Ok, let's determine the new real volume */
1648 compute_real_volume(root_source);
1650 /* To propagate the reference volume from the filter to the root source,
1651 * we first take the real volume from the root source and remap it to
1652 * match the filter. Then, we merge in the reference volume from the
1653 * filter on top of this, and remap it back to the root source channel
1655 root_real_volume = root_source->real_volume;
1656 /* First we remap root's real volume to filter channel count and map if needed */
1657 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1658 pa_cvolume_remap(&root_real_volume, &root_source->channel_map, &s->channel_map);
1659 /* Then let's 'push' the reference volume if necessary */
1660 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_real_volume);
1661 /* If the source and its root don't have the same number of channels, we need to remap back */
1662 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1663 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1665 update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save);
1667 /* Now that the reference volume is updated, we can update the streams'
1668 * reference ratios. */
1669 compute_reference_ratios(root_source);
1672 if (root_source->set_volume) {
1673 /* If we have a function set_volume(), then we do not apply a
1674 * soft volume by default. However, set_volume() is free to
1675 * apply one to root_source->soft_volume */
1677 pa_cvolume_reset(&root_source->soft_volume, root_source->sample_spec.channels);
1678 if (!(root_source->flags & PA_SOURCE_DEFERRED_VOLUME))
1679 root_source->set_volume(root_source);
1682 /* If we have no function set_volume(), then the soft volume
1683 * becomes the real volume */
1684 root_source->soft_volume = root_source->real_volume;
1686 /* This tells the source that soft volume and/or real volume changed */
1688 pa_assert_se(pa_asyncmsgq_send(root_source->asyncmsgq, PA_MSGOBJECT(root_source), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1691 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1692 * Only to be called by source implementor */
1693 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
1695 pa_source_assert_ref(s);
1696 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1698 if (s->flags & PA_SOURCE_DEFERRED_VOLUME)
1699 pa_source_assert_io_context(s);
1701 pa_assert_ctl_context();
1704 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
1706 s->soft_volume = *volume;
1708 if (PA_SOURCE_IS_LINKED(s->state) && !(s->flags & PA_SOURCE_DEFERRED_VOLUME))
1709 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
1711 s->thread_info.soft_volume = s->soft_volume;
1714 /* Called from the main thread. Only called for the root source in volume sharing
1715 * cases, except for internal recursive calls. */
1716 static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volume) {
1717 pa_source_output *o;
1720 pa_source_assert_ref(s);
1721 pa_assert(old_real_volume);
1722 pa_assert_ctl_context();
1723 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1725 /* This is called when the hardware's real volume changes due to
1726 * some external event. We copy the real volume into our
1727 * reference volume and then rebuild the stream volumes based on
1728 * i->real_ratio which should stay fixed. */
1730 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1731 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
1734 /* 1. Make the real volume the reference volume */
1735 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
1738 if (pa_source_flat_volume_enabled(s)) {
1739 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1740 pa_cvolume new_volume;
1742 /* 2. Since the source's reference and real volumes are equal
1743 * now our ratios should be too. */
1744 pa_source_output_set_reference_ratio(o, &o->real_ratio);
1746 /* 3. Recalculate the new stream reference volume based on the
1747 * reference ratio and the sink's reference volume.
1749 * This basically calculates:
1751 * o->volume = s->reference_volume * o->reference_ratio
1753 * This is identical to propagate_reference_volume() */
1754 new_volume = s->reference_volume;
1755 pa_cvolume_remap(&new_volume, &s->channel_map, &o->channel_map);
1756 pa_sw_cvolume_multiply(&new_volume, &new_volume, &o->reference_ratio);
1757 pa_source_output_set_volume_direct(o, &new_volume);
1759 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1760 propagate_real_volume(o->destination_source, old_real_volume);
1764 /* Something got changed in the hardware. It probably makes sense
1765 * to save changed hw settings given that hw volume changes not
1766 * triggered by PA are almost certainly done by the user. */
1767 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1768 s->save_volume = true;
1771 /* Called from io thread */
1772 void pa_source_update_volume_and_mute(pa_source *s) {
1774 pa_source_assert_io_context(s);
1776 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
1779 /* Called from main thread */
1780 const pa_cvolume *pa_source_get_volume(pa_source *s, bool force_refresh) {
1781 pa_source_assert_ref(s);
1782 pa_assert_ctl_context();
1783 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1785 if (s->refresh_volume || force_refresh) {
1786 struct pa_cvolume old_real_volume;
1788 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1790 old_real_volume = s->real_volume;
1792 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume)
1795 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
1797 update_real_volume(s, &s->real_volume, &s->channel_map);
1798 propagate_real_volume(s, &old_real_volume);
1801 return &s->reference_volume;
1804 /* Called from main thread. In volume sharing cases, only the root source may
1806 void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_real_volume) {
1807 pa_cvolume old_real_volume;
1809 pa_source_assert_ref(s);
1810 pa_assert_ctl_context();
1811 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1812 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1814 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1816 old_real_volume = s->real_volume;
1817 update_real_volume(s, new_real_volume, &s->channel_map);
1818 propagate_real_volume(s, &old_real_volume);
1821 /* Called from main thread */
1822 void pa_source_set_mute(pa_source *s, bool mute, bool save) {
1825 pa_source_assert_ref(s);
1826 pa_assert_ctl_context();
1828 old_muted = s->muted;
1830 if (mute == old_muted) {
1831 s->save_muted |= save;
1836 s->save_muted = save;
1838 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->set_mute) {
1839 s->set_mute_in_progress = true;
1841 s->set_mute_in_progress = false;
1844 if (!PA_SOURCE_IS_LINKED(s->state))
1847 pa_log_debug("The mute of source %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
1848 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1849 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1850 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_MUTE_CHANGED], s);
1853 /* Called from main thread */
1854 bool pa_source_get_mute(pa_source *s, bool force_refresh) {
1856 pa_source_assert_ref(s);
1857 pa_assert_ctl_context();
1858 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1860 if ((s->refresh_muted || force_refresh) && s->get_mute) {
1863 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
1864 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
1865 pa_source_mute_changed(s, mute);
1867 if (s->get_mute(s, &mute) >= 0)
1868 pa_source_mute_changed(s, mute);
1875 /* Called from main thread */
1876 void pa_source_mute_changed(pa_source *s, bool new_muted) {
1877 pa_source_assert_ref(s);
1878 pa_assert_ctl_context();
1879 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1881 if (s->set_mute_in_progress)
1884 /* pa_source_set_mute() does this same check, so this may appear redundant,
1885 * but we must have this here also, because the save parameter of
1886 * pa_source_set_mute() would otherwise have unintended side effects
1887 * (saving the mute state when it shouldn't be saved). */
1888 if (new_muted == s->muted)
1891 pa_source_set_mute(s, new_muted, true);
1894 /* Called from main thread */
1895 bool pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
1896 pa_source_assert_ref(s);
1897 pa_assert_ctl_context();
1900 pa_proplist_update(s->proplist, mode, p);
1902 if (PA_SOURCE_IS_LINKED(s->state)) {
1903 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1904 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1910 /* Called from main thread */
1911 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1912 void pa_source_set_description(pa_source *s, const char *description) {
1914 pa_source_assert_ref(s);
1915 pa_assert_ctl_context();
1917 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
1920 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1922 if (old && description && pa_streq(old, description))
1926 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
1928 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1930 if (PA_SOURCE_IS_LINKED(s->state)) {
1931 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1932 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1936 /* Called from main thread */
1937 unsigned pa_source_linked_by(pa_source *s) {
1938 pa_source_assert_ref(s);
1939 pa_assert_ctl_context();
1940 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1942 return pa_idxset_size(s->outputs);
1945 /* Called from main thread */
1946 unsigned pa_source_used_by(pa_source *s) {
1949 pa_source_assert_ref(s);
1950 pa_assert_ctl_context();
1951 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1953 ret = pa_idxset_size(s->outputs);
1954 pa_assert(ret >= s->n_corked);
1956 return ret - s->n_corked;
1959 /* Called from main thread */
1960 unsigned pa_source_check_suspend(pa_source *s, pa_source_output *ignore) {
1962 pa_source_output *o;
1965 pa_source_assert_ref(s);
1966 pa_assert_ctl_context();
1968 if (!PA_SOURCE_IS_LINKED(s->state))
1973 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1974 pa_source_output_state_t st;
1979 st = pa_source_output_get_state(o);
1981 /* We do not assert here. It is perfectly valid for a source output to
1982 * be in the INIT state (i.e. created, marked done but not yet put)
1983 * and we should not care if it's unlinked as it won't contribute
1984 * towards our busy status.
1986 if (!PA_SOURCE_OUTPUT_IS_LINKED(st))
1989 if (st == PA_SOURCE_OUTPUT_CORKED)
1992 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
2001 /* Called from the IO thread */
2002 static void sync_output_volumes_within_thread(pa_source *s) {
2003 pa_source_output *o;
2006 pa_source_assert_ref(s);
2007 pa_source_assert_io_context(s);
2009 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
2010 if (pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume))
2013 o->thread_info.soft_volume = o->soft_volume;
2014 //pa_source_output_request_rewind(o, 0, true, false, false);
2018 /* Called from the IO thread. Only called for the root source in volume sharing
2019 * cases, except for internal recursive calls. */
2020 static void set_shared_volume_within_thread(pa_source *s) {
2021 pa_source_output *o;
2024 pa_source_assert_ref(s);
2026 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2028 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
2029 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
2030 set_shared_volume_within_thread(o->destination_source);
2034 /* Called from IO thread, except when it is not */
2035 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2036 pa_source *s = PA_SOURCE(object);
2037 pa_source_assert_ref(s);
2039 switch ((pa_source_message_t) code) {
2041 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
2042 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
2044 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
2046 if (o->direct_on_input) {
2047 o->thread_info.direct_on_input = o->direct_on_input;
2048 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
2051 pa_source_output_attach(o);
2053 pa_source_output_set_state_within_thread(o, o->state);
2055 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
2056 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
2058 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2060 /* We don't just invalidate the requested latency here,
2061 * because if we are in a move we might need to fix up the
2062 * requested latency. */
2063 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
2065 /* In flat volume mode we need to update the volume as
2067 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2070 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
2071 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
2073 pa_source_output_set_state_within_thread(o, o->state);
2075 pa_source_output_detach(o);
2077 if (o->thread_info.direct_on_input) {
2078 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
2079 o->thread_info.direct_on_input = NULL;
2082 pa_hashmap_remove_and_free(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index));
2083 pa_source_invalidate_requested_latency(s, true);
2085 /* In flat volume mode we need to update the volume as
2087 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2090 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME: {
2091 pa_source *root_source = pa_source_get_master(s);
2093 if (PA_LIKELY(root_source))
2094 set_shared_volume_within_thread(root_source);
2099 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED:
2101 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2103 pa_source_volume_change_push(s);
2105 /* Fall through ... */
2107 case PA_SOURCE_MESSAGE_SET_VOLUME:
2109 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2110 s->thread_info.soft_volume = s->soft_volume;
2113 /* Fall through ... */
2115 case PA_SOURCE_MESSAGE_SYNC_VOLUMES:
2116 sync_output_volumes_within_thread(s);
2119 case PA_SOURCE_MESSAGE_GET_VOLUME:
2121 if ((s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume) {
2123 pa_source_volume_change_flush(s);
2124 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2127 /* In case source implementor reset SW volume. */
2128 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2129 s->thread_info.soft_volume = s->soft_volume;
2134 case PA_SOURCE_MESSAGE_SET_MUTE:
2136 if (s->thread_info.soft_muted != s->muted) {
2137 s->thread_info.soft_muted = s->muted;
2140 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->set_mute)
2145 case PA_SOURCE_MESSAGE_GET_MUTE:
2147 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->get_mute)
2148 return s->get_mute(s, userdata);
2152 case PA_SOURCE_MESSAGE_SET_STATE: {
2154 bool suspend_change =
2155 (s->thread_info.state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2156 (PA_SOURCE_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SOURCE_SUSPENDED);
2158 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2160 if (suspend_change) {
2161 pa_source_output *o;
2164 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2165 if (o->suspend_within_thread)
2166 o->suspend_within_thread(o, s->thread_info.state == PA_SOURCE_SUSPENDED);
2172 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
2174 pa_usec_t *usec = userdata;
2175 *usec = pa_source_get_requested_latency_within_thread(s);
2177 /* Yes, that's right, the IO thread will see -1 when no
2178 * explicit requested latency is configured, the main
2179 * thread will see max_latency */
2180 if (*usec == (pa_usec_t) -1)
2181 *usec = s->thread_info.max_latency;
2186 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
2187 pa_usec_t *r = userdata;
2189 pa_source_set_latency_range_within_thread(s, r[0], r[1]);
2194 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
2195 pa_usec_t *r = userdata;
2197 r[0] = s->thread_info.min_latency;
2198 r[1] = s->thread_info.max_latency;
2203 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY:
2205 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2208 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY:
2210 pa_source_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2213 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
2215 *((size_t*) userdata) = s->thread_info.max_rewind;
2218 case PA_SOURCE_MESSAGE_SET_MAX_REWIND:
2220 pa_source_set_max_rewind_within_thread(s, (size_t) offset);
2223 case PA_SOURCE_MESSAGE_GET_LATENCY:
2225 if (s->monitor_of) {
2226 *((pa_usec_t*) userdata) = 0;
2230 /* Implementors need to overwrite this implementation! */
2233 case PA_SOURCE_MESSAGE_SET_PORT:
2235 pa_assert(userdata);
2237 struct source_message_set_port *msg_data = userdata;
2238 msg_data->ret = s->set_port(s, msg_data->port);
2242 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2243 /* This message is sent from IO-thread and handled in main thread. */
2244 pa_assert_ctl_context();
2246 /* Make sure we're not messing with main thread when no longer linked */
2247 if (!PA_SOURCE_IS_LINKED(s->state))
2250 pa_source_get_volume(s, true);
2251 pa_source_get_mute(s, true);
2254 case PA_SOURCE_MESSAGE_SET_PORT_LATENCY_OFFSET:
2255 s->thread_info.port_latency_offset = offset;
2258 case PA_SOURCE_MESSAGE_MAX:
2265 /* Called from main thread */
2266 int pa_source_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2271 pa_core_assert_ref(c);
2272 pa_assert_ctl_context();
2273 pa_assert(cause != 0);
2275 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx))) {
2278 if (source->monitor_of)
2281 if ((r = pa_source_suspend(source, suspend, cause)) < 0)
2288 /* Called from IO thread */
2289 void pa_source_detach_within_thread(pa_source *s) {
2290 pa_source_output *o;
2293 pa_source_assert_ref(s);
2294 pa_source_assert_io_context(s);
2295 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2297 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2298 pa_source_output_detach(o);
2301 /* Called from IO thread */
2302 void pa_source_attach_within_thread(pa_source *s) {
2303 pa_source_output *o;
2306 pa_source_assert_ref(s);
2307 pa_source_assert_io_context(s);
2308 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2310 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2311 pa_source_output_attach(o);
2314 /* Called from IO thread */
2315 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
2316 pa_usec_t result = (pa_usec_t) -1;
2317 pa_source_output *o;
2320 pa_source_assert_ref(s);
2321 pa_source_assert_io_context(s);
2323 if (!(s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2324 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2326 if (s->thread_info.requested_latency_valid)
2327 return s->thread_info.requested_latency;
2329 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2330 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
2331 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
2332 result = o->thread_info.requested_source_latency;
2334 if (result != (pa_usec_t) -1)
2335 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2337 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2338 /* Only cache this if we are fully set up */
2339 s->thread_info.requested_latency = result;
2340 s->thread_info.requested_latency_valid = true;
2346 /* Called from main thread */
2347 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
2350 pa_source_assert_ref(s);
2351 pa_assert_ctl_context();
2352 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2354 if (s->state == PA_SOURCE_SUSPENDED)
2357 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2362 /* Called from IO thread */
2363 void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind) {
2364 pa_source_output *o;
2367 pa_source_assert_ref(s);
2368 pa_source_assert_io_context(s);
2370 if (max_rewind == s->thread_info.max_rewind)
2373 s->thread_info.max_rewind = max_rewind;
2375 if (PA_SOURCE_IS_LINKED(s->thread_info.state))
2376 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2377 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2380 /* Called from main thread */
2381 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
2382 pa_source_assert_ref(s);
2383 pa_assert_ctl_context();
2385 if (PA_SOURCE_IS_LINKED(s->state))
2386 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
2388 pa_source_set_max_rewind_within_thread(s, max_rewind);
2391 /* Called from IO thread */
2392 void pa_source_invalidate_requested_latency(pa_source *s, bool dynamic) {
2393 pa_source_output *o;
2396 pa_source_assert_ref(s);
2397 pa_source_assert_io_context(s);
2399 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2400 s->thread_info.requested_latency_valid = false;
2404 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2406 if (s->update_requested_latency)
2407 s->update_requested_latency(s);
2409 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2410 if (o->update_source_requested_latency)
2411 o->update_source_requested_latency(o);
2415 pa_sink_invalidate_requested_latency(s->monitor_of, dynamic);
2418 /* Called from main thread */
2419 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2420 pa_source_assert_ref(s);
2421 pa_assert_ctl_context();
2423 /* min_latency == 0: no limit
2424 * min_latency anything else: specified limit
2426 * Similar for max_latency */
2428 if (min_latency < ABSOLUTE_MIN_LATENCY)
2429 min_latency = ABSOLUTE_MIN_LATENCY;
2431 if (max_latency <= 0 ||
2432 max_latency > ABSOLUTE_MAX_LATENCY)
2433 max_latency = ABSOLUTE_MAX_LATENCY;
2435 pa_assert(min_latency <= max_latency);
2437 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2438 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2439 max_latency == ABSOLUTE_MAX_LATENCY) ||
2440 (s->flags & PA_SOURCE_DYNAMIC_LATENCY));
2442 if (PA_SOURCE_IS_LINKED(s->state)) {
2448 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
2450 pa_source_set_latency_range_within_thread(s, min_latency, max_latency);
2453 /* Called from main thread */
2454 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
2455 pa_source_assert_ref(s);
2456 pa_assert_ctl_context();
2457 pa_assert(min_latency);
2458 pa_assert(max_latency);
2460 if (PA_SOURCE_IS_LINKED(s->state)) {
2461 pa_usec_t r[2] = { 0, 0 };
2463 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
2465 *min_latency = r[0];
2466 *max_latency = r[1];
2468 *min_latency = s->thread_info.min_latency;
2469 *max_latency = s->thread_info.max_latency;
2473 /* Called from IO thread, and from main thread before pa_source_put() is called */
2474 void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2475 pa_source_assert_ref(s);
2476 pa_source_assert_io_context(s);
2478 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
2479 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
2480 pa_assert(min_latency <= max_latency);
2482 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2483 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2484 max_latency == ABSOLUTE_MAX_LATENCY) ||
2485 (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ||
2488 if (s->thread_info.min_latency == min_latency &&
2489 s->thread_info.max_latency == max_latency)
2492 s->thread_info.min_latency = min_latency;
2493 s->thread_info.max_latency = max_latency;
2495 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2496 pa_source_output *o;
2499 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2500 if (o->update_source_latency_range)
2501 o->update_source_latency_range(o);
2504 pa_source_invalidate_requested_latency(s, false);
2507 /* Called from main thread, before the source is put */
2508 void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency) {
2509 pa_source_assert_ref(s);
2510 pa_assert_ctl_context();
2512 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2513 pa_assert(latency == 0);
2517 if (latency < ABSOLUTE_MIN_LATENCY)
2518 latency = ABSOLUTE_MIN_LATENCY;
2520 if (latency > ABSOLUTE_MAX_LATENCY)
2521 latency = ABSOLUTE_MAX_LATENCY;
2523 if (PA_SOURCE_IS_LINKED(s->state))
2524 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
2526 s->thread_info.fixed_latency = latency;
2529 /* Called from main thread */
2530 pa_usec_t pa_source_get_fixed_latency(pa_source *s) {
2533 pa_source_assert_ref(s);
2534 pa_assert_ctl_context();
2536 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY)
2539 if (PA_SOURCE_IS_LINKED(s->state))
2540 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
2542 latency = s->thread_info.fixed_latency;
2547 /* Called from IO thread */
2548 void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency) {
2549 pa_source_assert_ref(s);
2550 pa_source_assert_io_context(s);
2552 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2553 pa_assert(latency == 0);
2554 s->thread_info.fixed_latency = 0;
2559 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
2560 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
2562 if (s->thread_info.fixed_latency == latency)
2565 s->thread_info.fixed_latency = latency;
2567 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2568 pa_source_output *o;
2571 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2572 if (o->update_source_fixed_latency)
2573 o->update_source_fixed_latency(o);
2576 pa_source_invalidate_requested_latency(s, false);
2579 /* Called from main thread */
2580 void pa_source_set_port_latency_offset(pa_source *s, int64_t offset) {
2581 pa_source_assert_ref(s);
2583 s->port_latency_offset = offset;
2585 if (PA_SOURCE_IS_LINKED(s->state))
2586 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
2588 s->thread_info.port_latency_offset = offset;
2590 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_LATENCY_OFFSET_CHANGED], s);
2593 /* Called from main thread */
2594 size_t pa_source_get_max_rewind(pa_source *s) {
2596 pa_assert_ctl_context();
2597 pa_source_assert_ref(s);
2599 if (!PA_SOURCE_IS_LINKED(s->state))
2600 return s->thread_info.max_rewind;
2602 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
2607 /* Called from main context */
2608 int pa_source_set_port(pa_source *s, const char *name, bool save) {
2609 pa_device_port *port;
2612 pa_source_assert_ref(s);
2613 pa_assert_ctl_context();
2616 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s->index, s->name);
2617 return -PA_ERR_NOTIMPLEMENTED;
2621 return -PA_ERR_NOENTITY;
2623 if (!(port = pa_hashmap_get(s->ports, name)))
2624 return -PA_ERR_NOENTITY;
2626 if (s->active_port == port) {
2627 s->save_port = s->save_port || save;
2631 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2632 struct source_message_set_port msg = { .port = port, .ret = 0 };
2633 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
2637 ret = s->set_port(s, port);
2640 return -PA_ERR_NOENTITY;
2642 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2644 pa_log_info("Changed port of source %u \"%s\" to %s", s->index, s->name, port->name);
2646 s->active_port = port;
2647 s->save_port = save;
2649 pa_source_set_port_latency_offset(s, s->active_port->latency_offset);
2651 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_CHANGED], s);
2656 PA_STATIC_FLIST_DECLARE(pa_source_volume_change, 0, pa_xfree);
2658 /* Called from the IO thread. */
2659 static pa_source_volume_change *pa_source_volume_change_new(pa_source *s) {
2660 pa_source_volume_change *c;
2661 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change))))
2662 c = pa_xnew(pa_source_volume_change, 1);
2664 PA_LLIST_INIT(pa_source_volume_change, c);
2666 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
2670 /* Called from the IO thread. */
2671 static void pa_source_volume_change_free(pa_source_volume_change *c) {
2673 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change), c) < 0)
2677 /* Called from the IO thread. */
2678 void pa_source_volume_change_push(pa_source *s) {
2679 pa_source_volume_change *c = NULL;
2680 pa_source_volume_change *nc = NULL;
2681 pa_source_volume_change *pc = NULL;
2682 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
2684 const char *direction = NULL;
2687 nc = pa_source_volume_change_new(s);
2689 /* NOTE: There is already more different volumes in pa_source that I can remember.
2690 * Adding one more volume for HW would get us rid of this, but I am trying
2691 * to survive with the ones we already have. */
2692 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
2694 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
2695 pa_log_debug("Volume not changing");
2696 pa_source_volume_change_free(nc);
2700 nc->at = pa_source_get_latency_within_thread(s);
2701 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
2703 if (s->thread_info.volume_changes_tail) {
2704 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
2705 /* If volume is going up let's do it a bit late. If it is going
2706 * down let's do it a bit early. */
2707 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
2708 if (nc->at + safety_margin > c->at) {
2709 nc->at += safety_margin;
2714 else if (nc->at - safety_margin > c->at) {
2715 nc->at -= safety_margin;
2723 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
2724 nc->at += safety_margin;
2727 nc->at -= safety_margin;
2730 PA_LLIST_PREPEND(pa_source_volume_change, s->thread_info.volume_changes, nc);
2733 PA_LLIST_INSERT_AFTER(pa_source_volume_change, s->thread_info.volume_changes, c, nc);
2736 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
2738 /* We can ignore volume events that came earlier but should happen later than this. */
2739 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
2740 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
2741 pa_source_volume_change_free(c);
2744 s->thread_info.volume_changes_tail = nc;
2747 /* Called from the IO thread. */
2748 static void pa_source_volume_change_flush(pa_source *s) {
2749 pa_source_volume_change *c = s->thread_info.volume_changes;
2751 s->thread_info.volume_changes = NULL;
2752 s->thread_info.volume_changes_tail = NULL;
2754 pa_source_volume_change *next = c->next;
2755 pa_source_volume_change_free(c);
2760 /* Called from the IO thread. */
2761 bool pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next) {
2767 if (!s->thread_info.volume_changes || !PA_SOURCE_IS_LINKED(s->state)) {
2773 pa_assert(s->write_volume);
2775 now = pa_rtclock_now();
2777 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
2778 pa_source_volume_change *c = s->thread_info.volume_changes;
2779 PA_LLIST_REMOVE(pa_source_volume_change, s->thread_info.volume_changes, c);
2780 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2781 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
2783 s->thread_info.current_hw_volume = c->hw_volume;
2784 pa_source_volume_change_free(c);
2790 if (s->thread_info.volume_changes) {
2792 *usec_to_next = s->thread_info.volume_changes->at - now;
2793 if (pa_log_ratelimit(PA_LOG_DEBUG))
2794 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
2799 s->thread_info.volume_changes_tail = NULL;
2804 /* Called from the main thread */
2805 /* Gets the list of formats supported by the source. The members and idxset must
2806 * be freed by the caller. */
2807 pa_idxset* pa_source_get_formats(pa_source *s) {
2812 if (s->get_formats) {
2813 /* Source supports format query, all is good */
2814 ret = s->get_formats(s);
2816 /* Source doesn't support format query, so assume it does PCM */
2817 pa_format_info *f = pa_format_info_new();
2818 f->encoding = PA_ENCODING_PCM;
2820 ret = pa_idxset_new(NULL, NULL);
2821 pa_idxset_put(ret, f, NULL);
2827 /* Called from the main thread */
2828 /* Checks if the source can accept this format */
2829 bool pa_source_check_format(pa_source *s, pa_format_info *f) {
2830 pa_idxset *formats = NULL;
2836 formats = pa_source_get_formats(s);
2839 pa_format_info *finfo_device;
2842 PA_IDXSET_FOREACH(finfo_device, formats, i) {
2843 if (pa_format_info_is_compatible(finfo_device, f)) {
2849 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
2855 /* Called from the main thread */
2856 /* Calculates the intersection between formats supported by the source and
2857 * in_formats, and returns these, in the order of the source's formats. */
2858 pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats) {
2859 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *source_formats = NULL;
2860 pa_format_info *f_source, *f_in;
2865 if (!in_formats || pa_idxset_isempty(in_formats))
2868 source_formats = pa_source_get_formats(s);
2870 PA_IDXSET_FOREACH(f_source, source_formats, i) {
2871 PA_IDXSET_FOREACH(f_in, in_formats, j) {
2872 if (pa_format_info_is_compatible(f_source, f_in))
2873 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
2879 pa_idxset_free(source_formats, (pa_free_cb_t) pa_format_info_free);
2884 /* Called from the main thread. */
2885 void pa_source_set_reference_volume_direct(pa_source *s, const pa_cvolume *volume) {
2886 pa_cvolume old_volume;
2887 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
2888 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
2893 old_volume = s->reference_volume;
2895 if (pa_cvolume_equal(volume, &old_volume))
2898 s->reference_volume = *volume;
2899 pa_log_debug("The reference volume of source %s changed from %s to %s.", s->name,
2900 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
2901 s->flags & PA_SOURCE_DECIBEL_VOLUME),
2902 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
2903 s->flags & PA_SOURCE_DECIBEL_VOLUME));
2905 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2906 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_VOLUME_CHANGED], s);