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_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_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_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_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);
609 /* This function must be called after the PA_CORE_HOOK_SOURCE_PUT hook,
610 * because module-switch-on-connect needs to know the old default source */
611 pa_core_update_default_source(s->core);
614 /* Called from main context */
615 void pa_source_unlink(pa_source *s) {
617 pa_source_output *o, PA_UNUSED *j = NULL;
619 pa_source_assert_ref(s);
620 pa_assert_ctl_context();
622 /* See pa_sink_unlink() for a couple of comments how this function
625 if (s->unlink_requested)
628 s->unlink_requested = true;
630 linked = PA_SOURCE_IS_LINKED(s->state);
633 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
635 if (s->state != PA_SOURCE_UNLINKED)
636 pa_namereg_unregister(s->core, s->name);
637 pa_idxset_remove_by_data(s->core->sources, s, NULL);
639 if (s == s->core->configured_default_source)
640 pa_core_set_configured_default_source(s->core, NULL);
642 pa_core_update_default_source(s->core);
645 pa_idxset_remove_by_data(s->card->sources, s, NULL);
647 while ((o = pa_idxset_first(s->outputs, NULL))) {
649 pa_source_output_kill(o);
654 source_set_state(s, PA_SOURCE_UNLINKED);
656 s->state = PA_SOURCE_UNLINKED;
661 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
662 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
666 /* Called from main context */
667 static void source_free(pa_object *o) {
668 pa_source *s = PA_SOURCE(o);
671 pa_assert_ctl_context();
672 pa_assert(pa_source_refcnt(s) == 0);
673 pa_assert(!PA_SOURCE_IS_LINKED(s->state));
675 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
677 pa_source_volume_change_flush(s);
679 pa_idxset_free(s->outputs, NULL);
680 pa_hashmap_free(s->thread_info.outputs);
682 if (s->silence.memblock)
683 pa_memblock_unref(s->silence.memblock);
689 pa_proplist_free(s->proplist);
692 pa_hashmap_free(s->ports);
697 /* Called from main context, and not while the IO thread is active, please */
698 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
699 pa_source_assert_ref(s);
700 pa_assert_ctl_context();
705 /* Called from main context, and not while the IO thread is active, please */
706 void pa_source_update_flags(pa_source *s, pa_source_flags_t mask, pa_source_flags_t value) {
707 pa_source_flags_t old_flags;
708 pa_source_output *output;
711 pa_source_assert_ref(s);
712 pa_assert_ctl_context();
714 /* For now, allow only a minimal set of flags to be changed. */
715 pa_assert((mask & ~(PA_SOURCE_DYNAMIC_LATENCY|PA_SOURCE_LATENCY)) == 0);
717 old_flags = s->flags;
718 s->flags = (s->flags & ~mask) | (value & mask);
720 if (s->flags == old_flags)
723 if ((s->flags & PA_SOURCE_LATENCY) != (old_flags & PA_SOURCE_LATENCY))
724 pa_log_debug("Source %s: LATENCY flag %s.", s->name, (s->flags & PA_SOURCE_LATENCY) ? "enabled" : "disabled");
726 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY) != (old_flags & PA_SOURCE_DYNAMIC_LATENCY))
727 pa_log_debug("Source %s: DYNAMIC_LATENCY flag %s.",
728 s->name, (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ? "enabled" : "disabled");
730 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
731 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_FLAGS_CHANGED], s);
733 PA_IDXSET_FOREACH(output, s->outputs, idx) {
734 if (output->destination_source)
735 pa_source_update_flags(output->destination_source, mask, value);
739 /* Called from IO context, or before _put() from main context */
740 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
741 pa_source_assert_ref(s);
742 pa_source_assert_io_context(s);
744 s->thread_info.rtpoll = p;
747 /* Called from main context */
748 int pa_source_update_status(pa_source*s) {
749 pa_source_assert_ref(s);
750 pa_assert_ctl_context();
751 pa_assert(PA_SOURCE_IS_LINKED(s->state));
753 if (s->state == PA_SOURCE_SUSPENDED)
756 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
759 /* Called from any context - must be threadsafe */
760 void pa_source_set_mixer_dirty(pa_source *s, bool is_dirty) {
761 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
764 /* Called from main context */
765 int pa_source_suspend(pa_source *s, bool suspend, pa_suspend_cause_t cause) {
766 pa_source_assert_ref(s);
767 pa_assert_ctl_context();
768 pa_assert(PA_SOURCE_IS_LINKED(s->state));
769 pa_assert(cause != 0);
771 if (s->monitor_of && cause != PA_SUSPEND_PASSTHROUGH)
772 return -PA_ERR_NOTSUPPORTED;
775 s->suspend_cause |= cause;
777 s->suspend_cause &= ~cause;
779 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
780 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
781 it'll be handled just fine. */
782 pa_source_set_mixer_dirty(s, false);
783 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
784 if (s->active_port && s->set_port) {
785 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
786 struct source_message_set_port msg = { .port = s->active_port, .ret = 0 };
787 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
790 s->set_port(s, s->active_port);
800 if ((pa_source_get_state(s) == PA_SOURCE_SUSPENDED) == !!s->suspend_cause)
803 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
805 if (s->suspend_cause)
806 return source_set_state(s, PA_SOURCE_SUSPENDED);
808 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
811 /* Called from main context */
812 int pa_source_sync_suspend(pa_source *s) {
813 pa_sink_state_t state;
815 pa_source_assert_ref(s);
816 pa_assert_ctl_context();
817 pa_assert(PA_SOURCE_IS_LINKED(s->state));
818 pa_assert(s->monitor_of);
820 state = pa_sink_get_state(s->monitor_of);
822 if (state == PA_SINK_SUSPENDED)
823 return source_set_state(s, PA_SOURCE_SUSPENDED);
825 pa_assert(PA_SINK_IS_OPENED(state));
827 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
830 /* Called from main context */
831 pa_queue *pa_source_move_all_start(pa_source *s, pa_queue *q) {
832 pa_source_output *o, *n;
835 pa_source_assert_ref(s);
836 pa_assert_ctl_context();
837 pa_assert(PA_SOURCE_IS_LINKED(s->state));
842 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
843 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
845 pa_source_output_ref(o);
847 if (pa_source_output_start_move(o) >= 0)
850 pa_source_output_unref(o);
856 /* Called from main context */
857 void pa_source_move_all_finish(pa_source *s, pa_queue *q, bool save) {
860 pa_source_assert_ref(s);
861 pa_assert_ctl_context();
862 pa_assert(PA_SOURCE_IS_LINKED(s->state));
865 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
866 if (pa_source_output_finish_move(o, s, save) < 0)
867 pa_source_output_fail_move(o);
869 pa_source_output_unref(o);
872 pa_queue_free(q, NULL);
875 /* Called from main context */
876 void pa_source_move_all_fail(pa_queue *q) {
879 pa_assert_ctl_context();
882 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
883 pa_source_output_fail_move(o);
884 pa_source_output_unref(o);
887 pa_queue_free(q, NULL);
890 /* Called from IO thread context */
891 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
895 pa_source_assert_ref(s);
896 pa_source_assert_io_context(s);
897 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
902 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
905 pa_log_debug("Processing rewind...");
907 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
908 pa_source_output_assert_ref(o);
909 pa_source_output_process_rewind(o, nbytes);
913 /* Called from IO thread context */
914 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
918 pa_source_assert_ref(s);
919 pa_source_assert_io_context(s);
920 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
923 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
926 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
927 pa_memchunk vchunk = *chunk;
929 pa_memblock_ref(vchunk.memblock);
930 pa_memchunk_make_writable(&vchunk, 0);
932 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
933 pa_silence_memchunk(&vchunk, &s->sample_spec);
935 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
937 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
938 pa_source_output_assert_ref(o);
940 if (!o->thread_info.direct_on_input)
941 pa_source_output_push(o, &vchunk);
944 pa_memblock_unref(vchunk.memblock);
947 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
948 pa_source_output_assert_ref(o);
950 if (!o->thread_info.direct_on_input)
951 pa_source_output_push(o, chunk);
956 /* Called from IO thread context */
957 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
958 pa_source_assert_ref(s);
959 pa_source_assert_io_context(s);
960 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
961 pa_source_output_assert_ref(o);
962 pa_assert(o->thread_info.direct_on_input);
965 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
968 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
969 pa_memchunk vchunk = *chunk;
971 pa_memblock_ref(vchunk.memblock);
972 pa_memchunk_make_writable(&vchunk, 0);
974 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
975 pa_silence_memchunk(&vchunk, &s->sample_spec);
977 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
979 pa_source_output_push(o, &vchunk);
981 pa_memblock_unref(vchunk.memblock);
983 pa_source_output_push(o, chunk);
986 /* Called from main thread */
987 int pa_source_update_rate(pa_source *s, uint32_t rate, bool passthrough) {
989 uint32_t desired_rate;
990 uint32_t default_rate = s->default_sample_rate;
991 uint32_t alternate_rate = s->alternate_sample_rate;
992 bool default_rate_is_usable = false;
993 bool alternate_rate_is_usable = false;
994 bool avoid_resampling = s->core->avoid_resampling;
996 if (rate == s->sample_spec.rate)
999 if (!s->update_rate && !s->monitor_of)
1002 if (PA_UNLIKELY(default_rate == alternate_rate && !passthrough && !avoid_resampling)) {
1003 pa_log_debug("Default and alternate sample rates are the same, so there is no point in switching.");
1007 if (PA_SOURCE_IS_RUNNING(s->state)) {
1008 pa_log_info("Cannot update rate, SOURCE_IS_RUNNING, will keep using %u Hz",
1009 s->sample_spec.rate);
1013 if (s->monitor_of) {
1014 if (PA_SINK_IS_RUNNING(s->monitor_of->state)) {
1015 pa_log_info("Cannot update rate, this is a monitor source and the sink is running.");
1020 if (PA_UNLIKELY(!pa_sample_rate_valid(rate)))
1024 /* We have to try to use the source output rate */
1025 desired_rate = rate;
1027 } else if (avoid_resampling && (rate >= default_rate || rate >= alternate_rate)) {
1028 /* We just try to set the source output's sample rate if it's not too low */
1029 desired_rate = rate;
1031 } else if (default_rate == rate || alternate_rate == rate) {
1032 /* We can directly try to use this rate */
1033 desired_rate = rate;
1036 /* See if we can pick a rate that results in less resampling effort */
1037 if (default_rate % 11025 == 0 && rate % 11025 == 0)
1038 default_rate_is_usable = true;
1039 if (default_rate % 4000 == 0 && rate % 4000 == 0)
1040 default_rate_is_usable = true;
1041 if (alternate_rate && alternate_rate % 11025 == 0 && rate % 11025 == 0)
1042 alternate_rate_is_usable = true;
1043 if (alternate_rate && alternate_rate % 4000 == 0 && rate % 4000 == 0)
1044 alternate_rate_is_usable = true;
1046 if (alternate_rate_is_usable && !default_rate_is_usable)
1047 desired_rate = alternate_rate;
1049 desired_rate = default_rate;
1052 if (desired_rate == s->sample_spec.rate)
1055 if (!passthrough && pa_source_used_by(s) > 0)
1058 pa_log_debug("Suspending source %s due to changing the sample rate.", s->name);
1059 pa_source_suspend(s, true, PA_SUSPEND_INTERNAL);
1062 ret = s->update_rate(s, desired_rate);
1064 /* This is a monitor source. */
1066 /* XXX: This code is written with non-passthrough streams in mind. I
1067 * have no idea whether the behaviour with passthrough streams is
1070 uint32_t old_rate = s->sample_spec.rate;
1072 s->sample_spec.rate = desired_rate;
1073 ret = pa_sink_update_rate(s->monitor_of, desired_rate, false);
1076 /* Changing the sink rate failed, roll back the old rate for
1077 * the monitor source. Why did we set the source rate before
1078 * calling pa_sink_update_rate(), you may ask. The reason is
1079 * that pa_sink_update_rate() tries to update the monitor
1080 * source rate, but we are already in the process of updating
1081 * the monitor source rate, so there's a risk of entering an
1082 * infinite loop. Setting the source rate before calling
1083 * pa_sink_update_rate() makes the rate == s->sample_spec.rate
1084 * check in the beginning of this function return early, so we
1086 s->sample_spec.rate = old_rate;
1094 pa_source_output *o;
1096 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1097 if (o->state == PA_SOURCE_OUTPUT_CORKED)
1098 pa_source_output_update_rate(o);
1101 pa_log_info("Changed sampling rate successfully");
1104 pa_source_suspend(s, false, PA_SUSPEND_INTERNAL);
1109 /* Called from main thread */
1110 pa_usec_t pa_source_get_latency(pa_source *s) {
1113 pa_source_assert_ref(s);
1114 pa_assert_ctl_context();
1115 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1117 if (s->state == PA_SOURCE_SUSPENDED)
1120 if (!(s->flags & PA_SOURCE_LATENCY))
1123 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1125 /* The return value is unsigned, so check that the offset can be added to usec without
1127 if (-s->port_latency_offset <= usec)
1128 usec += s->port_latency_offset;
1132 return (pa_usec_t)usec;
1135 /* Called from IO thread */
1136 int64_t pa_source_get_latency_within_thread(pa_source *s, bool allow_negative) {
1140 pa_source_assert_ref(s);
1141 pa_source_assert_io_context(s);
1142 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
1144 /* The returned value is supposed to be in the time domain of the sound card! */
1146 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
1149 if (!(s->flags & PA_SOURCE_LATENCY))
1152 o = PA_MSGOBJECT(s);
1154 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1156 o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL);
1158 /* If allow_negative is false, the call should only return positive values, */
1159 usec += s->thread_info.port_latency_offset;
1160 if (!allow_negative && usec < 0)
1166 /* Called from the main thread (and also from the IO thread while the main
1167 * thread is waiting).
1169 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
1170 * set. Instead, flat volume mode is detected by checking whether the root source
1171 * has the flag set. */
1172 bool pa_source_flat_volume_enabled(pa_source *s) {
1173 pa_source_assert_ref(s);
1175 s = pa_source_get_master(s);
1178 return (s->flags & PA_SOURCE_FLAT_VOLUME);
1183 /* Called from the main thread (and also from the IO thread while the main
1184 * thread is waiting). */
1185 pa_source *pa_source_get_master(pa_source *s) {
1186 pa_source_assert_ref(s);
1188 while (s && (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1189 if (PA_UNLIKELY(!s->output_from_master))
1192 s = s->output_from_master->source;
1198 /* Called from main context */
1199 bool pa_source_is_filter(pa_source *s) {
1200 pa_source_assert_ref(s);
1202 return (s->output_from_master != NULL);
1205 /* Called from main context */
1206 bool pa_source_is_passthrough(pa_source *s) {
1208 pa_source_assert_ref(s);
1210 /* NB Currently only monitor sources support passthrough mode */
1211 return (s->monitor_of && pa_sink_is_passthrough(s->monitor_of));
1214 /* Called from main context */
1215 void pa_source_enter_passthrough(pa_source *s) {
1218 /* set the volume to NORM */
1219 s->saved_volume = *pa_source_get_volume(s, true);
1220 s->saved_save_volume = s->save_volume;
1222 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1223 pa_source_set_volume(s, &volume, true, false);
1226 /* Called from main context */
1227 void pa_source_leave_passthrough(pa_source *s) {
1228 /* Restore source volume to what it was before we entered passthrough mode */
1229 pa_source_set_volume(s, &s->saved_volume, true, s->saved_save_volume);
1231 pa_cvolume_init(&s->saved_volume);
1232 s->saved_save_volume = false;
1235 /* Called from main context. */
1236 static void compute_reference_ratio(pa_source_output *o) {
1238 pa_cvolume remapped;
1242 pa_assert(pa_source_flat_volume_enabled(o->source));
1245 * Calculates the reference ratio from the source's reference
1246 * volume. This basically calculates:
1248 * o->reference_ratio = o->volume / o->source->reference_volume
1251 remapped = o->source->reference_volume;
1252 pa_cvolume_remap(&remapped, &o->source->channel_map, &o->channel_map);
1254 ratio = o->reference_ratio;
1256 for (c = 0; c < o->sample_spec.channels; c++) {
1258 /* We don't update when the source volume is 0 anyway */
1259 if (remapped.values[c] <= PA_VOLUME_MUTED)
1262 /* Don't update the reference ratio unless necessary */
1263 if (pa_sw_volume_multiply(
1265 remapped.values[c]) == o->volume.values[c])
1268 ratio.values[c] = pa_sw_volume_divide(
1269 o->volume.values[c],
1270 remapped.values[c]);
1273 pa_source_output_set_reference_ratio(o, &ratio);
1276 /* Called from main context. Only called for the root source in volume sharing
1277 * cases, except for internal recursive calls. */
1278 static void compute_reference_ratios(pa_source *s) {
1280 pa_source_output *o;
1282 pa_source_assert_ref(s);
1283 pa_assert_ctl_context();
1284 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1285 pa_assert(pa_source_flat_volume_enabled(s));
1287 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1288 compute_reference_ratio(o);
1290 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1291 compute_reference_ratios(o->destination_source);
1295 /* Called from main context. Only called for the root source in volume sharing
1296 * cases, except for internal recursive calls. */
1297 static void compute_real_ratios(pa_source *s) {
1298 pa_source_output *o;
1301 pa_source_assert_ref(s);
1302 pa_assert_ctl_context();
1303 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1304 pa_assert(pa_source_flat_volume_enabled(s));
1306 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1308 pa_cvolume remapped;
1310 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1311 /* The origin source uses volume sharing, so this input's real ratio
1312 * is handled as a special case - the real ratio must be 0 dB, and
1313 * as a result i->soft_volume must equal i->volume_factor. */
1314 pa_cvolume_reset(&o->real_ratio, o->real_ratio.channels);
1315 o->soft_volume = o->volume_factor;
1317 compute_real_ratios(o->destination_source);
1323 * This basically calculates:
1325 * i->real_ratio := i->volume / s->real_volume
1326 * i->soft_volume := i->real_ratio * i->volume_factor
1329 remapped = s->real_volume;
1330 pa_cvolume_remap(&remapped, &s->channel_map, &o->channel_map);
1332 o->real_ratio.channels = o->sample_spec.channels;
1333 o->soft_volume.channels = o->sample_spec.channels;
1335 for (c = 0; c < o->sample_spec.channels; c++) {
1337 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1338 /* We leave o->real_ratio untouched */
1339 o->soft_volume.values[c] = PA_VOLUME_MUTED;
1343 /* Don't lose accuracy unless necessary */
1344 if (pa_sw_volume_multiply(
1345 o->real_ratio.values[c],
1346 remapped.values[c]) != o->volume.values[c])
1348 o->real_ratio.values[c] = pa_sw_volume_divide(
1349 o->volume.values[c],
1350 remapped.values[c]);
1352 o->soft_volume.values[c] = pa_sw_volume_multiply(
1353 o->real_ratio.values[c],
1354 o->volume_factor.values[c]);
1357 /* We don't copy the soft_volume to the thread_info data
1358 * here. That must be done by the caller */
1362 static pa_cvolume *cvolume_remap_minimal_impact(
1364 const pa_cvolume *template,
1365 const pa_channel_map *from,
1366 const pa_channel_map *to) {
1371 pa_assert(template);
1374 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1375 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1377 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1378 * mapping from source output to source volumes:
1380 * If template is a possible remapping from v it is used instead
1381 * of remapping anew.
1383 * If the channel maps don't match we set an all-channel volume on
1384 * the source to ensure that changing a volume on one stream has no
1385 * effect that cannot be compensated for in another stream that
1386 * does not have the same channel map as the source. */
1388 if (pa_channel_map_equal(from, to))
1392 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1397 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1401 /* Called from main thread. Only called for the root source in volume sharing
1402 * cases, except for internal recursive calls. */
1403 static void get_maximum_output_volume(pa_source *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1404 pa_source_output *o;
1407 pa_source_assert_ref(s);
1408 pa_assert(max_volume);
1409 pa_assert(channel_map);
1410 pa_assert(pa_source_flat_volume_enabled(s));
1412 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1413 pa_cvolume remapped;
1415 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1416 get_maximum_output_volume(o->destination_source, max_volume, channel_map);
1418 /* Ignore this output. The origin source uses volume sharing, so this
1419 * output's volume will be set to be equal to the root source's real
1420 * volume. Obviously this output's current volume must not then
1421 * affect what the root source's real volume will be. */
1425 remapped = o->volume;
1426 cvolume_remap_minimal_impact(&remapped, max_volume, &o->channel_map, channel_map);
1427 pa_cvolume_merge(max_volume, max_volume, &remapped);
1431 /* Called from main thread. Only called for the root source in volume sharing
1432 * cases, except for internal recursive calls. */
1433 static bool has_outputs(pa_source *s) {
1434 pa_source_output *o;
1437 pa_source_assert_ref(s);
1439 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1440 if (!o->destination_source || !(o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || has_outputs(o->destination_source))
1447 /* Called from main thread. Only called for the root source in volume sharing
1448 * cases, except for internal recursive calls. */
1449 static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1450 pa_source_output *o;
1453 pa_source_assert_ref(s);
1454 pa_assert(new_volume);
1455 pa_assert(channel_map);
1457 s->real_volume = *new_volume;
1458 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1460 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1461 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1462 if (pa_source_flat_volume_enabled(s)) {
1463 pa_cvolume new_output_volume;
1465 /* Follow the root source's real volume. */
1466 new_output_volume = *new_volume;
1467 pa_cvolume_remap(&new_output_volume, channel_map, &o->channel_map);
1468 pa_source_output_set_volume_direct(o, &new_output_volume);
1469 compute_reference_ratio(o);
1472 update_real_volume(o->destination_source, new_volume, channel_map);
1477 /* Called from main thread. Only called for the root source in shared volume
1479 static void compute_real_volume(pa_source *s) {
1480 pa_source_assert_ref(s);
1481 pa_assert_ctl_context();
1482 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1483 pa_assert(pa_source_flat_volume_enabled(s));
1484 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1486 /* This determines the maximum volume of all streams and sets
1487 * s->real_volume accordingly. */
1489 if (!has_outputs(s)) {
1490 /* In the special case that we have no source outputs we leave the
1491 * volume unmodified. */
1492 update_real_volume(s, &s->reference_volume, &s->channel_map);
1496 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1498 /* First let's determine the new maximum volume of all outputs
1499 * connected to this source */
1500 get_maximum_output_volume(s, &s->real_volume, &s->channel_map);
1501 update_real_volume(s, &s->real_volume, &s->channel_map);
1503 /* Then, let's update the real ratios/soft volumes of all outputs
1504 * connected to this source */
1505 compute_real_ratios(s);
1508 /* Called from main thread. Only called for the root source in shared volume
1509 * cases, except for internal recursive calls. */
1510 static void propagate_reference_volume(pa_source *s) {
1511 pa_source_output *o;
1514 pa_source_assert_ref(s);
1515 pa_assert_ctl_context();
1516 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1517 pa_assert(pa_source_flat_volume_enabled(s));
1519 /* This is called whenever the source volume changes that is not
1520 * caused by a source output volume change. We need to fix up the
1521 * source output volumes accordingly */
1523 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1524 pa_cvolume new_volume;
1526 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1527 propagate_reference_volume(o->destination_source);
1529 /* Since the origin source uses volume sharing, this output's volume
1530 * needs to be updated to match the root source's real volume, but
1531 * that will be done later in update_shared_real_volume(). */
1535 /* This basically calculates:
1537 * o->volume := o->reference_volume * o->reference_ratio */
1539 new_volume = s->reference_volume;
1540 pa_cvolume_remap(&new_volume, &s->channel_map, &o->channel_map);
1541 pa_sw_cvolume_multiply(&new_volume, &new_volume, &o->reference_ratio);
1542 pa_source_output_set_volume_direct(o, &new_volume);
1546 /* Called from main thread. Only called for the root source in volume sharing
1547 * cases, except for internal recursive calls. The return value indicates
1548 * whether any reference volume actually changed. */
1549 static bool update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_channel_map *channel_map, bool save) {
1551 bool reference_volume_changed;
1552 pa_source_output *o;
1555 pa_source_assert_ref(s);
1556 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1558 pa_assert(channel_map);
1559 pa_assert(pa_cvolume_valid(v));
1562 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1564 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1565 pa_source_set_reference_volume_direct(s, &volume);
1567 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1569 if (!reference_volume_changed && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1570 /* If the root source's volume doesn't change, then there can't be any
1571 * changes in the other source in the source tree either.
1573 * It's probably theoretically possible that even if the root source's
1574 * volume changes slightly, some filter source doesn't change its volume
1575 * due to rounding errors. If that happens, we still want to propagate
1576 * the changed root source volume to the sources connected to the
1577 * intermediate source that didn't change its volume. This theoretical
1578 * possibility is the reason why we have that !(s->flags &
1579 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1580 * notice even if we returned here false always if
1581 * reference_volume_changed is false. */
1584 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1585 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1586 update_reference_volume(o->destination_source, v, channel_map, false);
1592 /* Called from main thread */
1593 void pa_source_set_volume(
1595 const pa_cvolume *volume,
1599 pa_cvolume new_reference_volume, root_real_volume;
1600 pa_source *root_source;
1602 pa_source_assert_ref(s);
1603 pa_assert_ctl_context();
1604 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1605 pa_assert(!volume || pa_cvolume_valid(volume));
1606 pa_assert(volume || pa_source_flat_volume_enabled(s));
1607 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1609 /* make sure we don't change the volume in PASSTHROUGH mode ...
1610 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1611 if (pa_source_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1612 pa_log_warn("Cannot change volume, source is monitor of a PASSTHROUGH sink");
1616 /* In case of volume sharing, the volume is set for the root source first,
1617 * from which it's then propagated to the sharing sources. */
1618 root_source = pa_source_get_master(s);
1620 if (PA_UNLIKELY(!root_source))
1623 /* As a special exception we accept mono volumes on all sources --
1624 * even on those with more complex channel maps */
1627 if (pa_cvolume_compatible(volume, &s->sample_spec))
1628 new_reference_volume = *volume;
1630 new_reference_volume = s->reference_volume;
1631 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1634 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1636 if (update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save)) {
1637 if (pa_source_flat_volume_enabled(root_source)) {
1638 /* OK, propagate this volume change back to the outputs */
1639 propagate_reference_volume(root_source);
1641 /* And now recalculate the real volume */
1642 compute_real_volume(root_source);
1644 update_real_volume(root_source, &root_source->reference_volume, &root_source->channel_map);
1648 /* If volume is NULL we synchronize the source's real and
1649 * reference volumes with the stream volumes. */
1651 pa_assert(pa_source_flat_volume_enabled(root_source));
1653 /* Ok, let's determine the new real volume */
1654 compute_real_volume(root_source);
1656 /* To propagate the reference volume from the filter to the root source,
1657 * we first take the real volume from the root source and remap it to
1658 * match the filter. Then, we merge in the reference volume from the
1659 * filter on top of this, and remap it back to the root source channel
1661 root_real_volume = root_source->real_volume;
1662 /* First we remap root's real volume to filter channel count and map if needed */
1663 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1664 pa_cvolume_remap(&root_real_volume, &root_source->channel_map, &s->channel_map);
1665 /* Then let's 'push' the reference volume if necessary */
1666 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_real_volume);
1667 /* If the source and its root don't have the same number of channels, we need to remap back */
1668 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1669 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1671 update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save);
1673 /* Now that the reference volume is updated, we can update the streams'
1674 * reference ratios. */
1675 compute_reference_ratios(root_source);
1678 if (root_source->set_volume) {
1679 /* If we have a function set_volume(), then we do not apply a
1680 * soft volume by default. However, set_volume() is free to
1681 * apply one to root_source->soft_volume */
1683 pa_cvolume_reset(&root_source->soft_volume, root_source->sample_spec.channels);
1684 if (!(root_source->flags & PA_SOURCE_DEFERRED_VOLUME))
1685 root_source->set_volume(root_source);
1688 /* If we have no function set_volume(), then the soft volume
1689 * becomes the real volume */
1690 root_source->soft_volume = root_source->real_volume;
1692 /* This tells the source that soft volume and/or real volume changed */
1694 pa_assert_se(pa_asyncmsgq_send(root_source->asyncmsgq, PA_MSGOBJECT(root_source), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1697 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1698 * Only to be called by source implementor */
1699 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
1701 pa_source_assert_ref(s);
1702 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1704 if (s->flags & PA_SOURCE_DEFERRED_VOLUME)
1705 pa_source_assert_io_context(s);
1707 pa_assert_ctl_context();
1710 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
1712 s->soft_volume = *volume;
1714 if (PA_SOURCE_IS_LINKED(s->state) && !(s->flags & PA_SOURCE_DEFERRED_VOLUME))
1715 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
1717 s->thread_info.soft_volume = s->soft_volume;
1720 /* Called from the main thread. Only called for the root source in volume sharing
1721 * cases, except for internal recursive calls. */
1722 static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volume) {
1723 pa_source_output *o;
1726 pa_source_assert_ref(s);
1727 pa_assert(old_real_volume);
1728 pa_assert_ctl_context();
1729 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1731 /* This is called when the hardware's real volume changes due to
1732 * some external event. We copy the real volume into our
1733 * reference volume and then rebuild the stream volumes based on
1734 * i->real_ratio which should stay fixed. */
1736 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1737 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
1740 /* 1. Make the real volume the reference volume */
1741 update_reference_volume(s, &s->real_volume, &s->channel_map, true);
1744 if (pa_source_flat_volume_enabled(s)) {
1745 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1746 pa_cvolume new_volume;
1748 /* 2. Since the source's reference and real volumes are equal
1749 * now our ratios should be too. */
1750 pa_source_output_set_reference_ratio(o, &o->real_ratio);
1752 /* 3. Recalculate the new stream reference volume based on the
1753 * reference ratio and the sink's reference volume.
1755 * This basically calculates:
1757 * o->volume = s->reference_volume * o->reference_ratio
1759 * This is identical to propagate_reference_volume() */
1760 new_volume = s->reference_volume;
1761 pa_cvolume_remap(&new_volume, &s->channel_map, &o->channel_map);
1762 pa_sw_cvolume_multiply(&new_volume, &new_volume, &o->reference_ratio);
1763 pa_source_output_set_volume_direct(o, &new_volume);
1765 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1766 propagate_real_volume(o->destination_source, old_real_volume);
1770 /* Something got changed in the hardware. It probably makes sense
1771 * to save changed hw settings given that hw volume changes not
1772 * triggered by PA are almost certainly done by the user. */
1773 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1774 s->save_volume = true;
1777 /* Called from io thread */
1778 void pa_source_update_volume_and_mute(pa_source *s) {
1780 pa_source_assert_io_context(s);
1782 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
1785 /* Called from main thread */
1786 const pa_cvolume *pa_source_get_volume(pa_source *s, bool force_refresh) {
1787 pa_source_assert_ref(s);
1788 pa_assert_ctl_context();
1789 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1791 if (s->refresh_volume || force_refresh) {
1792 struct pa_cvolume old_real_volume;
1794 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1796 old_real_volume = s->real_volume;
1798 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume)
1801 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
1803 update_real_volume(s, &s->real_volume, &s->channel_map);
1804 propagate_real_volume(s, &old_real_volume);
1807 return &s->reference_volume;
1810 /* Called from main thread. In volume sharing cases, only the root source may
1812 void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_real_volume) {
1813 pa_cvolume old_real_volume;
1815 pa_source_assert_ref(s);
1816 pa_assert_ctl_context();
1817 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1818 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1820 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1822 old_real_volume = s->real_volume;
1823 update_real_volume(s, new_real_volume, &s->channel_map);
1824 propagate_real_volume(s, &old_real_volume);
1827 /* Called from main thread */
1828 void pa_source_set_mute(pa_source *s, bool mute, bool save) {
1831 pa_source_assert_ref(s);
1832 pa_assert_ctl_context();
1834 old_muted = s->muted;
1836 if (mute == old_muted) {
1837 s->save_muted |= save;
1842 s->save_muted = save;
1844 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->set_mute) {
1845 s->set_mute_in_progress = true;
1847 s->set_mute_in_progress = false;
1850 if (!PA_SOURCE_IS_LINKED(s->state))
1853 pa_log_debug("The mute of source %s changed from %s to %s.", s->name, pa_yes_no(old_muted), pa_yes_no(mute));
1854 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1855 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1856 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_MUTE_CHANGED], s);
1859 /* Called from main thread */
1860 bool pa_source_get_mute(pa_source *s, bool force_refresh) {
1862 pa_source_assert_ref(s);
1863 pa_assert_ctl_context();
1864 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1866 if ((s->refresh_muted || force_refresh) && s->get_mute) {
1869 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
1870 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, &mute, 0, NULL) >= 0)
1871 pa_source_mute_changed(s, mute);
1873 if (s->get_mute(s, &mute) >= 0)
1874 pa_source_mute_changed(s, mute);
1881 /* Called from main thread */
1882 void pa_source_mute_changed(pa_source *s, bool new_muted) {
1883 pa_source_assert_ref(s);
1884 pa_assert_ctl_context();
1885 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1887 if (s->set_mute_in_progress)
1890 /* pa_source_set_mute() does this same check, so this may appear redundant,
1891 * but we must have this here also, because the save parameter of
1892 * pa_source_set_mute() would otherwise have unintended side effects
1893 * (saving the mute state when it shouldn't be saved). */
1894 if (new_muted == s->muted)
1897 pa_source_set_mute(s, new_muted, true);
1900 /* Called from main thread */
1901 bool pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
1902 pa_source_assert_ref(s);
1903 pa_assert_ctl_context();
1906 pa_proplist_update(s->proplist, mode, p);
1908 if (PA_SOURCE_IS_LINKED(s->state)) {
1909 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1910 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1916 /* Called from main thread */
1917 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1918 void pa_source_set_description(pa_source *s, const char *description) {
1920 pa_source_assert_ref(s);
1921 pa_assert_ctl_context();
1923 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
1926 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1928 if (old && description && pa_streq(old, description))
1932 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
1934 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1936 if (PA_SOURCE_IS_LINKED(s->state)) {
1937 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1938 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1942 /* Called from main thread */
1943 unsigned pa_source_linked_by(pa_source *s) {
1944 pa_source_assert_ref(s);
1945 pa_assert_ctl_context();
1946 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1948 return pa_idxset_size(s->outputs);
1951 /* Called from main thread */
1952 unsigned pa_source_used_by(pa_source *s) {
1955 pa_source_assert_ref(s);
1956 pa_assert_ctl_context();
1957 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1959 ret = pa_idxset_size(s->outputs);
1960 pa_assert(ret >= s->n_corked);
1962 return ret - s->n_corked;
1965 /* Called from main thread */
1966 unsigned pa_source_check_suspend(pa_source *s, pa_source_output *ignore) {
1968 pa_source_output *o;
1971 pa_source_assert_ref(s);
1972 pa_assert_ctl_context();
1974 if (!PA_SOURCE_IS_LINKED(s->state))
1979 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1980 pa_source_output_state_t st;
1985 st = pa_source_output_get_state(o);
1987 /* We do not assert here. It is perfectly valid for a source output to
1988 * be in the INIT state (i.e. created, marked done but not yet put)
1989 * and we should not care if it's unlinked as it won't contribute
1990 * towards our busy status.
1992 if (!PA_SOURCE_OUTPUT_IS_LINKED(st))
1995 if (st == PA_SOURCE_OUTPUT_CORKED)
1998 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
2007 /* Called from the IO thread */
2008 static void sync_output_volumes_within_thread(pa_source *s) {
2009 pa_source_output *o;
2012 pa_source_assert_ref(s);
2013 pa_source_assert_io_context(s);
2015 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
2016 if (pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume))
2019 o->thread_info.soft_volume = o->soft_volume;
2020 //pa_source_output_request_rewind(o, 0, true, false, false);
2024 /* Called from the IO thread. Only called for the root source in volume sharing
2025 * cases, except for internal recursive calls. */
2026 static void set_shared_volume_within_thread(pa_source *s) {
2027 pa_source_output *o;
2030 pa_source_assert_ref(s);
2032 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
2034 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
2035 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
2036 set_shared_volume_within_thread(o->destination_source);
2040 /* Called from IO thread, except when it is not */
2041 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
2042 pa_source *s = PA_SOURCE(object);
2043 pa_source_assert_ref(s);
2045 switch ((pa_source_message_t) code) {
2047 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
2048 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
2050 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
2052 if (o->direct_on_input) {
2053 o->thread_info.direct_on_input = o->direct_on_input;
2054 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
2057 pa_source_output_attach(o);
2059 pa_source_output_set_state_within_thread(o, o->state);
2061 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
2062 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
2064 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2066 /* We don't just invalidate the requested latency here,
2067 * because if we are in a move we might need to fix up the
2068 * requested latency. */
2069 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
2071 /* In flat volume mode we need to update the volume as
2073 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2076 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
2077 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
2079 pa_source_output_set_state_within_thread(o, o->state);
2081 pa_source_output_detach(o);
2083 if (o->thread_info.direct_on_input) {
2084 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
2085 o->thread_info.direct_on_input = NULL;
2088 pa_hashmap_remove_and_free(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index));
2089 pa_source_invalidate_requested_latency(s, true);
2091 /* In flat volume mode we need to update the volume as
2093 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2096 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME: {
2097 pa_source *root_source = pa_source_get_master(s);
2099 if (PA_LIKELY(root_source))
2100 set_shared_volume_within_thread(root_source);
2105 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED:
2107 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2109 pa_source_volume_change_push(s);
2111 /* Fall through ... */
2113 case PA_SOURCE_MESSAGE_SET_VOLUME:
2115 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2116 s->thread_info.soft_volume = s->soft_volume;
2119 /* Fall through ... */
2121 case PA_SOURCE_MESSAGE_SYNC_VOLUMES:
2122 sync_output_volumes_within_thread(s);
2125 case PA_SOURCE_MESSAGE_GET_VOLUME:
2127 if ((s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume) {
2129 pa_source_volume_change_flush(s);
2130 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2133 /* In case source implementor reset SW volume. */
2134 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2135 s->thread_info.soft_volume = s->soft_volume;
2140 case PA_SOURCE_MESSAGE_SET_MUTE:
2142 if (s->thread_info.soft_muted != s->muted) {
2143 s->thread_info.soft_muted = s->muted;
2146 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->set_mute)
2151 case PA_SOURCE_MESSAGE_GET_MUTE:
2153 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->get_mute)
2154 return s->get_mute(s, userdata);
2158 case PA_SOURCE_MESSAGE_SET_STATE: {
2160 bool suspend_change =
2161 (s->thread_info.state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2162 (PA_SOURCE_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SOURCE_SUSPENDED);
2164 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2166 if (suspend_change) {
2167 pa_source_output *o;
2170 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2171 if (o->suspend_within_thread)
2172 o->suspend_within_thread(o, s->thread_info.state == PA_SOURCE_SUSPENDED);
2178 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
2180 pa_usec_t *usec = userdata;
2181 *usec = pa_source_get_requested_latency_within_thread(s);
2183 /* Yes, that's right, the IO thread will see -1 when no
2184 * explicit requested latency is configured, the main
2185 * thread will see max_latency */
2186 if (*usec == (pa_usec_t) -1)
2187 *usec = s->thread_info.max_latency;
2192 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
2193 pa_usec_t *r = userdata;
2195 pa_source_set_latency_range_within_thread(s, r[0], r[1]);
2200 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
2201 pa_usec_t *r = userdata;
2203 r[0] = s->thread_info.min_latency;
2204 r[1] = s->thread_info.max_latency;
2209 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY:
2211 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2214 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY:
2216 pa_source_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2219 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
2221 *((size_t*) userdata) = s->thread_info.max_rewind;
2224 case PA_SOURCE_MESSAGE_SET_MAX_REWIND:
2226 pa_source_set_max_rewind_within_thread(s, (size_t) offset);
2229 case PA_SOURCE_MESSAGE_GET_LATENCY:
2231 if (s->monitor_of) {
2232 *((int64_t*) userdata) = -pa_sink_get_latency_within_thread(s->monitor_of, true);
2236 /* Implementors need to overwrite this implementation! */
2239 case PA_SOURCE_MESSAGE_SET_PORT:
2241 pa_assert(userdata);
2243 struct source_message_set_port *msg_data = userdata;
2244 msg_data->ret = s->set_port(s, msg_data->port);
2248 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2249 /* This message is sent from IO-thread and handled in main thread. */
2250 pa_assert_ctl_context();
2252 /* Make sure we're not messing with main thread when no longer linked */
2253 if (!PA_SOURCE_IS_LINKED(s->state))
2256 pa_source_get_volume(s, true);
2257 pa_source_get_mute(s, true);
2260 case PA_SOURCE_MESSAGE_SET_PORT_LATENCY_OFFSET:
2261 s->thread_info.port_latency_offset = offset;
2264 case PA_SOURCE_MESSAGE_MAX:
2271 /* Called from main thread */
2272 int pa_source_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause) {
2277 pa_core_assert_ref(c);
2278 pa_assert_ctl_context();
2279 pa_assert(cause != 0);
2281 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx))) {
2284 if (source->monitor_of)
2287 if ((r = pa_source_suspend(source, suspend, cause)) < 0)
2294 /* Called from IO thread */
2295 void pa_source_detach_within_thread(pa_source *s) {
2296 pa_source_output *o;
2299 pa_source_assert_ref(s);
2300 pa_source_assert_io_context(s);
2301 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2303 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2304 pa_source_output_detach(o);
2307 /* Called from IO thread */
2308 void pa_source_attach_within_thread(pa_source *s) {
2309 pa_source_output *o;
2312 pa_source_assert_ref(s);
2313 pa_source_assert_io_context(s);
2314 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2316 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2317 pa_source_output_attach(o);
2320 /* Called from IO thread */
2321 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
2322 pa_usec_t result = (pa_usec_t) -1;
2323 pa_source_output *o;
2326 pa_source_assert_ref(s);
2327 pa_source_assert_io_context(s);
2329 if (!(s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2330 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2332 if (s->thread_info.requested_latency_valid)
2333 return s->thread_info.requested_latency;
2335 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2336 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
2337 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
2338 result = o->thread_info.requested_source_latency;
2340 if (result != (pa_usec_t) -1)
2341 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2343 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2344 /* Only cache this if we are fully set up */
2345 s->thread_info.requested_latency = result;
2346 s->thread_info.requested_latency_valid = true;
2352 /* Called from main thread */
2353 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
2356 pa_source_assert_ref(s);
2357 pa_assert_ctl_context();
2358 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2360 if (s->state == PA_SOURCE_SUSPENDED)
2363 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2368 /* Called from IO thread */
2369 void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind) {
2370 pa_source_output *o;
2373 pa_source_assert_ref(s);
2374 pa_source_assert_io_context(s);
2376 if (max_rewind == s->thread_info.max_rewind)
2379 s->thread_info.max_rewind = max_rewind;
2381 if (PA_SOURCE_IS_LINKED(s->thread_info.state))
2382 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2383 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2386 /* Called from main thread */
2387 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
2388 pa_source_assert_ref(s);
2389 pa_assert_ctl_context();
2391 if (PA_SOURCE_IS_LINKED(s->state))
2392 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
2394 pa_source_set_max_rewind_within_thread(s, max_rewind);
2397 /* Called from IO thread */
2398 void pa_source_invalidate_requested_latency(pa_source *s, bool dynamic) {
2399 pa_source_output *o;
2402 pa_source_assert_ref(s);
2403 pa_source_assert_io_context(s);
2405 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2406 s->thread_info.requested_latency_valid = false;
2410 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2412 if (s->update_requested_latency)
2413 s->update_requested_latency(s);
2415 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2416 if (o->update_source_requested_latency)
2417 o->update_source_requested_latency(o);
2421 pa_sink_invalidate_requested_latency(s->monitor_of, dynamic);
2424 /* Called from main thread */
2425 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2426 pa_source_assert_ref(s);
2427 pa_assert_ctl_context();
2429 /* min_latency == 0: no limit
2430 * min_latency anything else: specified limit
2432 * Similar for max_latency */
2434 if (min_latency < ABSOLUTE_MIN_LATENCY)
2435 min_latency = ABSOLUTE_MIN_LATENCY;
2437 if (max_latency <= 0 ||
2438 max_latency > ABSOLUTE_MAX_LATENCY)
2439 max_latency = ABSOLUTE_MAX_LATENCY;
2441 pa_assert(min_latency <= max_latency);
2443 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2444 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2445 max_latency == ABSOLUTE_MAX_LATENCY) ||
2446 (s->flags & PA_SOURCE_DYNAMIC_LATENCY));
2448 if (PA_SOURCE_IS_LINKED(s->state)) {
2454 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
2456 pa_source_set_latency_range_within_thread(s, min_latency, max_latency);
2459 /* Called from main thread */
2460 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
2461 pa_source_assert_ref(s);
2462 pa_assert_ctl_context();
2463 pa_assert(min_latency);
2464 pa_assert(max_latency);
2466 if (PA_SOURCE_IS_LINKED(s->state)) {
2467 pa_usec_t r[2] = { 0, 0 };
2469 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
2471 *min_latency = r[0];
2472 *max_latency = r[1];
2474 *min_latency = s->thread_info.min_latency;
2475 *max_latency = s->thread_info.max_latency;
2479 /* Called from IO thread, and from main thread before pa_source_put() is called */
2480 void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2481 pa_source_assert_ref(s);
2482 pa_source_assert_io_context(s);
2484 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
2485 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
2486 pa_assert(min_latency <= max_latency);
2488 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2489 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2490 max_latency == ABSOLUTE_MAX_LATENCY) ||
2491 (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ||
2494 if (s->thread_info.min_latency == min_latency &&
2495 s->thread_info.max_latency == max_latency)
2498 s->thread_info.min_latency = min_latency;
2499 s->thread_info.max_latency = max_latency;
2501 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2502 pa_source_output *o;
2505 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2506 if (o->update_source_latency_range)
2507 o->update_source_latency_range(o);
2510 pa_source_invalidate_requested_latency(s, false);
2513 /* Called from main thread, before the source is put */
2514 void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency) {
2515 pa_source_assert_ref(s);
2516 pa_assert_ctl_context();
2518 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2519 pa_assert(latency == 0);
2523 if (latency < ABSOLUTE_MIN_LATENCY)
2524 latency = ABSOLUTE_MIN_LATENCY;
2526 if (latency > ABSOLUTE_MAX_LATENCY)
2527 latency = ABSOLUTE_MAX_LATENCY;
2529 if (PA_SOURCE_IS_LINKED(s->state))
2530 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
2532 s->thread_info.fixed_latency = latency;
2535 /* Called from main thread */
2536 pa_usec_t pa_source_get_fixed_latency(pa_source *s) {
2539 pa_source_assert_ref(s);
2540 pa_assert_ctl_context();
2542 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY)
2545 if (PA_SOURCE_IS_LINKED(s->state))
2546 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
2548 latency = s->thread_info.fixed_latency;
2553 /* Called from IO thread */
2554 void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency) {
2555 pa_source_assert_ref(s);
2556 pa_source_assert_io_context(s);
2558 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2559 pa_assert(latency == 0);
2560 s->thread_info.fixed_latency = 0;
2565 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
2566 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
2568 if (s->thread_info.fixed_latency == latency)
2571 s->thread_info.fixed_latency = latency;
2573 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2574 pa_source_output *o;
2577 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2578 if (o->update_source_fixed_latency)
2579 o->update_source_fixed_latency(o);
2582 pa_source_invalidate_requested_latency(s, false);
2585 /* Called from main thread */
2586 void pa_source_set_port_latency_offset(pa_source *s, int64_t offset) {
2587 pa_source_assert_ref(s);
2589 s->port_latency_offset = offset;
2591 if (PA_SOURCE_IS_LINKED(s->state))
2592 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT_LATENCY_OFFSET, NULL, offset, NULL) == 0);
2594 s->thread_info.port_latency_offset = offset;
2596 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_LATENCY_OFFSET_CHANGED], s);
2599 /* Called from main thread */
2600 size_t pa_source_get_max_rewind(pa_source *s) {
2602 pa_assert_ctl_context();
2603 pa_source_assert_ref(s);
2605 if (!PA_SOURCE_IS_LINKED(s->state))
2606 return s->thread_info.max_rewind;
2608 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
2613 /* Called from main context */
2614 int pa_source_set_port(pa_source *s, const char *name, bool save) {
2615 pa_device_port *port;
2618 pa_source_assert_ref(s);
2619 pa_assert_ctl_context();
2622 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s->index, s->name);
2623 return -PA_ERR_NOTIMPLEMENTED;
2627 return -PA_ERR_NOENTITY;
2629 if (!(port = pa_hashmap_get(s->ports, name)))
2630 return -PA_ERR_NOENTITY;
2632 if (s->active_port == port) {
2633 s->save_port = s->save_port || save;
2637 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2638 struct source_message_set_port msg = { .port = port, .ret = 0 };
2639 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
2643 ret = s->set_port(s, port);
2646 return -PA_ERR_NOENTITY;
2648 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2650 pa_log_info("Changed port of source %u \"%s\" to %s", s->index, s->name, port->name);
2652 s->active_port = port;
2653 s->save_port = save;
2655 /* The active port affects the default source selection. */
2656 pa_core_update_default_source(s->core);
2658 pa_source_set_port_latency_offset(s, s->active_port->latency_offset);
2660 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_CHANGED], s);
2665 PA_STATIC_FLIST_DECLARE(pa_source_volume_change, 0, pa_xfree);
2667 /* Called from the IO thread. */
2668 static pa_source_volume_change *pa_source_volume_change_new(pa_source *s) {
2669 pa_source_volume_change *c;
2670 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change))))
2671 c = pa_xnew(pa_source_volume_change, 1);
2673 PA_LLIST_INIT(pa_source_volume_change, c);
2675 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
2679 /* Called from the IO thread. */
2680 static void pa_source_volume_change_free(pa_source_volume_change *c) {
2682 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change), c) < 0)
2686 /* Called from the IO thread. */
2687 void pa_source_volume_change_push(pa_source *s) {
2688 pa_source_volume_change *c = NULL;
2689 pa_source_volume_change *nc = NULL;
2690 pa_source_volume_change *pc = NULL;
2691 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
2693 const char *direction = NULL;
2696 nc = pa_source_volume_change_new(s);
2698 /* NOTE: There is already more different volumes in pa_source that I can remember.
2699 * Adding one more volume for HW would get us rid of this, but I am trying
2700 * to survive with the ones we already have. */
2701 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
2703 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
2704 pa_log_debug("Volume not changing");
2705 pa_source_volume_change_free(nc);
2709 nc->at = pa_source_get_latency_within_thread(s, false);
2710 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
2712 if (s->thread_info.volume_changes_tail) {
2713 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
2714 /* If volume is going up let's do it a bit late. If it is going
2715 * down let's do it a bit early. */
2716 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
2717 if (nc->at + safety_margin > c->at) {
2718 nc->at += safety_margin;
2723 else if (nc->at - safety_margin > c->at) {
2724 nc->at -= safety_margin;
2732 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
2733 nc->at += safety_margin;
2736 nc->at -= safety_margin;
2739 PA_LLIST_PREPEND(pa_source_volume_change, s->thread_info.volume_changes, nc);
2742 PA_LLIST_INSERT_AFTER(pa_source_volume_change, s->thread_info.volume_changes, c, nc);
2745 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
2747 /* We can ignore volume events that came earlier but should happen later than this. */
2748 PA_LLIST_FOREACH_SAFE(c, pc, nc->next) {
2749 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
2750 pa_source_volume_change_free(c);
2753 s->thread_info.volume_changes_tail = nc;
2756 /* Called from the IO thread. */
2757 static void pa_source_volume_change_flush(pa_source *s) {
2758 pa_source_volume_change *c = s->thread_info.volume_changes;
2760 s->thread_info.volume_changes = NULL;
2761 s->thread_info.volume_changes_tail = NULL;
2763 pa_source_volume_change *next = c->next;
2764 pa_source_volume_change_free(c);
2769 /* Called from the IO thread. */
2770 bool pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next) {
2776 if (!s->thread_info.volume_changes || !PA_SOURCE_IS_LINKED(s->state)) {
2782 pa_assert(s->write_volume);
2784 now = pa_rtclock_now();
2786 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
2787 pa_source_volume_change *c = s->thread_info.volume_changes;
2788 PA_LLIST_REMOVE(pa_source_volume_change, s->thread_info.volume_changes, c);
2789 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2790 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
2792 s->thread_info.current_hw_volume = c->hw_volume;
2793 pa_source_volume_change_free(c);
2799 if (s->thread_info.volume_changes) {
2801 *usec_to_next = s->thread_info.volume_changes->at - now;
2802 if (pa_log_ratelimit(PA_LOG_DEBUG))
2803 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
2808 s->thread_info.volume_changes_tail = NULL;
2813 /* Called from the main thread */
2814 /* Gets the list of formats supported by the source. The members and idxset must
2815 * be freed by the caller. */
2816 pa_idxset* pa_source_get_formats(pa_source *s) {
2821 if (s->get_formats) {
2822 /* Source supports format query, all is good */
2823 ret = s->get_formats(s);
2825 /* Source doesn't support format query, so assume it does PCM */
2826 pa_format_info *f = pa_format_info_new();
2827 f->encoding = PA_ENCODING_PCM;
2829 ret = pa_idxset_new(NULL, NULL);
2830 pa_idxset_put(ret, f, NULL);
2836 /* Called from the main thread */
2837 /* Checks if the source can accept this format */
2838 bool pa_source_check_format(pa_source *s, pa_format_info *f) {
2839 pa_idxset *formats = NULL;
2845 formats = pa_source_get_formats(s);
2848 pa_format_info *finfo_device;
2851 PA_IDXSET_FOREACH(finfo_device, formats, i) {
2852 if (pa_format_info_is_compatible(finfo_device, f)) {
2858 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
2864 /* Called from the main thread */
2865 /* Calculates the intersection between formats supported by the source and
2866 * in_formats, and returns these, in the order of the source's formats. */
2867 pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats) {
2868 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *source_formats = NULL;
2869 pa_format_info *f_source, *f_in;
2874 if (!in_formats || pa_idxset_isempty(in_formats))
2877 source_formats = pa_source_get_formats(s);
2879 PA_IDXSET_FOREACH(f_source, source_formats, i) {
2880 PA_IDXSET_FOREACH(f_in, in_formats, j) {
2881 if (pa_format_info_is_compatible(f_source, f_in))
2882 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
2888 pa_idxset_free(source_formats, (pa_free_cb_t) pa_format_info_free);
2893 /* Called from the main thread. */
2894 void pa_source_set_reference_volume_direct(pa_source *s, const pa_cvolume *volume) {
2895 pa_cvolume old_volume;
2896 char old_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
2897 char new_volume_str[PA_CVOLUME_SNPRINT_VERBOSE_MAX];
2902 old_volume = s->reference_volume;
2904 if (pa_cvolume_equal(volume, &old_volume))
2907 s->reference_volume = *volume;
2908 pa_log_debug("The reference volume of source %s changed from %s to %s.", s->name,
2909 pa_cvolume_snprint_verbose(old_volume_str, sizeof(old_volume_str), &old_volume, &s->channel_map,
2910 s->flags & PA_SOURCE_DECIBEL_VOLUME),
2911 pa_cvolume_snprint_verbose(new_volume_str, sizeof(new_volume_str), volume, &s->channel_map,
2912 s->flags & PA_SOURCE_DECIBEL_VOLUME));
2914 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2915 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_VOLUME_CHANGED], s);