2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
30 #include <pulse/format.h>
31 #include <pulse/utf8.h>
32 #include <pulse/xmalloc.h>
33 #include <pulse/timeval.h>
34 #include <pulse/util.h>
35 #include <pulse/rtclock.h>
36 #include <pulse/internal.h>
38 #include <pulsecore/core-util.h>
39 #include <pulsecore/source-output.h>
40 #include <pulsecore/namereg.h>
41 #include <pulsecore/core-subscribe.h>
42 #include <pulsecore/log.h>
43 #include <pulsecore/sample-util.h>
44 #include <pulsecore/flist.h>
48 #define ABSOLUTE_MIN_LATENCY (500)
49 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
50 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
52 PA_DEFINE_PUBLIC_CLASS(pa_source, pa_msgobject);
54 struct pa_source_volume_change {
58 PA_LLIST_FIELDS(pa_source_volume_change);
61 struct source_message_set_port {
66 static void source_free(pa_object *o);
68 static void pa_source_volume_change_push(pa_source *s);
69 static void pa_source_volume_change_flush(pa_source *s);
71 pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data) {
75 data->proplist = pa_proplist_new();
80 void pa_source_new_data_set_name(pa_source_new_data *data, const char *name) {
84 data->name = pa_xstrdup(name);
87 void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec) {
90 if ((data->sample_spec_is_set = !!spec))
91 data->sample_spec = *spec;
94 void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map) {
97 if ((data->channel_map_is_set = !!map))
98 data->channel_map = *map;
101 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume) {
104 if ((data->volume_is_set = !!volume))
105 data->volume = *volume;
108 void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute) {
111 data->muted_is_set = TRUE;
112 data->muted = !!mute;
115 void pa_source_new_data_set_port(pa_source_new_data *data, const char *port) {
118 pa_xfree(data->active_port);
119 data->active_port = pa_xstrdup(port);
122 void pa_source_new_data_done(pa_source_new_data *data) {
125 pa_proplist_free(data->proplist);
130 while ((p = pa_hashmap_steal_first(data->ports)))
131 pa_device_port_free(p);
133 pa_hashmap_free(data->ports, NULL, NULL);
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;
149 s->update_requested_latency = NULL;
151 s->get_formats = NULL;
154 /* Called from main context */
155 pa_source* pa_source_new(
157 pa_source_new_data *data,
158 pa_source_flags_t flags) {
162 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
167 pa_assert(data->name);
168 pa_assert_ctl_context();
170 s = pa_msgobject_new(pa_source);
172 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
173 pa_log_debug("Failed to register name %s.", data->name);
178 pa_source_new_data_set_name(data, name);
180 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
182 pa_namereg_unregister(core, name);
186 /* FIXME, need to free s here on failure */
188 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
189 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
191 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
193 if (!data->channel_map_is_set)
194 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
196 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
197 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
199 /* FIXME: There should probably be a general function for checking whether
200 * the source volume is allowed to be set, like there is for source outputs. */
201 pa_assert(!data->volume_is_set || !(flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
203 if (!data->volume_is_set) {
204 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
205 data->save_volume = FALSE;
208 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
209 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
211 if (!data->muted_is_set)
215 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
217 pa_device_init_description(data->proplist);
218 pa_device_init_icon(data->proplist, FALSE);
219 pa_device_init_intended_roles(data->proplist);
221 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
223 pa_namereg_unregister(core, name);
227 s->parent.parent.free = source_free;
228 s->parent.process_msg = pa_source_process_msg;
231 s->state = PA_SOURCE_INIT;
234 s->suspend_cause = 0;
235 s->name = pa_xstrdup(name);
236 s->proplist = pa_proplist_copy(data->proplist);
237 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
238 s->module = data->module;
239 s->card = data->card;
241 s->priority = pa_device_init_priority(s->proplist);
243 s->sample_spec = data->sample_spec;
244 s->channel_map = data->channel_map;
246 s->outputs = pa_idxset_new(NULL, NULL);
248 s->monitor_of = NULL;
249 s->output_from_master = NULL;
251 s->reference_volume = s->real_volume = data->volume;
252 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
253 s->base_volume = PA_VOLUME_NORM;
254 s->n_volume_steps = PA_VOLUME_NORM+1;
255 s->muted = data->muted;
256 s->refresh_volume = s->refresh_muted = FALSE;
263 /* As a minor optimization we just steal the list instead of
265 s->ports = data->ports;
268 s->active_port = NULL;
269 s->save_port = FALSE;
271 if (data->active_port && s->ports)
272 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
273 s->save_port = data->save_port;
275 if (!s->active_port && s->ports) {
279 PA_HASHMAP_FOREACH(p, s->ports, state)
280 if (!s->active_port || p->priority > s->active_port->priority)
284 s->save_volume = data->save_volume;
285 s->save_muted = data->save_muted;
287 pa_silence_memchunk_get(
288 &core->silence_cache,
294 s->thread_info.rtpoll = NULL;
295 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
296 s->thread_info.soft_volume = s->soft_volume;
297 s->thread_info.soft_muted = s->muted;
298 s->thread_info.state = s->state;
299 s->thread_info.max_rewind = 0;
300 s->thread_info.requested_latency_valid = FALSE;
301 s->thread_info.requested_latency = 0;
302 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
303 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
304 s->thread_info.fixed_latency = flags & PA_SOURCE_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
306 PA_LLIST_HEAD_INIT(pa_source_volume_change, s->thread_info.volume_changes);
307 s->thread_info.volume_changes_tail = NULL;
308 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
309 s->thread_info.volume_change_safety_margin = core->sync_volume_safety_margin_usec;
310 s->thread_info.volume_change_extra_delay = core->sync_volume_extra_delay_usec;
312 /* FIXME: This should probably be moved to pa_source_put() */
313 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
316 pa_assert_se(pa_idxset_put(s->card->sources, s, NULL) >= 0);
318 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
319 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
322 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
323 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
330 /* Called from main context */
331 static int source_set_state(pa_source *s, pa_source_state_t state) {
333 pa_bool_t suspend_change;
334 pa_source_state_t original_state;
337 pa_assert_ctl_context();
339 if (s->state == state)
342 original_state = s->state;
345 (original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
346 (PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
349 if ((ret = s->set_state(s, state)) < 0)
353 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
356 s->set_state(s, original_state);
363 if (state != PA_SOURCE_UNLINKED) { /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
364 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
365 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
368 if (suspend_change) {
372 /* We're suspending or resuming, tell everyone about it */
374 PA_IDXSET_FOREACH(o, s->outputs, idx)
375 if (s->state == PA_SOURCE_SUSPENDED &&
376 (o->flags & PA_SOURCE_OUTPUT_KILL_ON_SUSPEND))
377 pa_source_output_kill(o);
379 o->suspend(o, state == PA_SOURCE_SUSPENDED);
385 void pa_source_set_get_volume_callback(pa_source *s, pa_source_cb_t cb) {
391 void pa_source_set_set_volume_callback(pa_source *s, pa_source_cb_t cb) {
392 pa_source_flags_t flags;
395 pa_assert(!s->write_volume || cb);
399 /* Save the current flags so we can tell if they've changed */
403 /* The source implementor is responsible for setting decibel volume support */
404 s->flags |= PA_SOURCE_HW_VOLUME_CTRL;
406 s->flags &= ~PA_SOURCE_HW_VOLUME_CTRL;
407 /* See note below in pa_source_put() about volume sharing and decibel volumes */
408 pa_source_enable_decibel_volume(s, !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
411 /* If the flags have changed after init, let any clients know via a change event */
412 if (s->state != PA_SOURCE_INIT && flags != s->flags)
413 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
416 void pa_source_set_write_volume_callback(pa_source *s, pa_source_cb_t cb) {
417 pa_source_flags_t flags;
420 pa_assert(!cb || s->set_volume);
422 s->write_volume = cb;
424 /* Save the current flags so we can tell if they've changed */
428 s->flags |= PA_SOURCE_SYNC_VOLUME;
430 s->flags &= ~PA_SOURCE_SYNC_VOLUME;
432 /* If the flags have changed after init, let any clients know via a change event */
433 if (s->state != PA_SOURCE_INIT && flags != s->flags)
434 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
437 void pa_source_set_get_mute_callback(pa_source *s, pa_source_cb_t cb) {
443 void pa_source_set_set_mute_callback(pa_source *s, pa_source_cb_t cb) {
444 pa_source_flags_t flags;
450 /* Save the current flags so we can tell if they've changed */
454 s->flags |= PA_SOURCE_HW_MUTE_CTRL;
456 s->flags &= ~PA_SOURCE_HW_MUTE_CTRL;
458 /* If the flags have changed after init, let any clients know via a change event */
459 if (s->state != PA_SOURCE_INIT && flags != s->flags)
460 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
463 static void enable_flat_volume(pa_source *s, pa_bool_t enable) {
464 pa_source_flags_t flags;
468 /* Always follow the overall user preference here */
469 enable = enable && s->core->flat_volumes;
471 /* Save the current flags so we can tell if they've changed */
475 s->flags |= PA_SOURCE_FLAT_VOLUME;
477 s->flags &= ~PA_SOURCE_FLAT_VOLUME;
479 /* If the flags have changed after init, let any clients know via a change event */
480 if (s->state != PA_SOURCE_INIT && flags != s->flags)
481 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
484 void pa_source_enable_decibel_volume(pa_source *s, pa_bool_t enable) {
485 pa_source_flags_t flags;
489 /* Save the current flags so we can tell if they've changed */
493 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
494 enable_flat_volume(s, TRUE);
496 s->flags &= ~PA_SOURCE_DECIBEL_VOLUME;
497 enable_flat_volume(s, FALSE);
500 /* If the flags have changed after init, let any clients know via a change event */
501 if (s->state != PA_SOURCE_INIT && flags != s->flags)
502 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
505 /* Called from main context */
506 void pa_source_put(pa_source *s) {
507 pa_source_assert_ref(s);
508 pa_assert_ctl_context();
510 pa_assert(s->state == PA_SOURCE_INIT);
511 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || s->output_from_master);
513 /* The following fields must be initialized properly when calling _put() */
514 pa_assert(s->asyncmsgq);
515 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
517 /* Generally, flags should be initialized via pa_source_new(). As a
518 * special exception we allow some volume related flags to be set
519 * between _new() and _put() by the callback setter functions above.
521 * Thus we implement a couple safeguards here which ensure the above
522 * setters were used (or at least the implementor made manual changes
523 * in a compatible way).
525 * Note: All of these flags set here can change over the life time
527 pa_assert(!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) || s->set_volume);
528 pa_assert(!(s->flags & PA_SOURCE_SYNC_VOLUME) || s->write_volume);
529 pa_assert(!(s->flags & PA_SOURCE_HW_MUTE_CTRL) || s->set_mute);
531 /* XXX: Currently decibel volume is disabled for all sources that use volume
532 * sharing. When the master source supports decibel volume, it would be good
533 * to have the flag also in the filter source, but currently we don't do that
534 * so that the flags of the filter source never change when it's moved from
535 * a master source to another. One solution for this problem would be to
536 * remove user-visible volume altogether from filter sources when volume
537 * sharing is used, but the current approach was easier to implement... */
538 /* We always support decibel volumes in software, otherwise we leave it to
539 * the source implementor to set this flag as needed.
541 * Note: This flag can also change over the life time of the source. */
542 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
543 pa_source_enable_decibel_volume(s, TRUE);
545 /* If the source implementor support DB volumes by itself, we should always
546 * try and enable flat volumes too */
547 if ((s->flags & PA_SOURCE_DECIBEL_VOLUME))
548 enable_flat_volume(s, TRUE);
550 if (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) {
551 pa_source *root_source = s->output_from_master->source;
553 while (root_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)
554 root_source = root_source->output_from_master->source;
556 s->reference_volume = root_source->reference_volume;
557 pa_cvolume_remap(&s->reference_volume, &root_source->channel_map, &s->channel_map);
559 s->real_volume = root_source->real_volume;
560 pa_cvolume_remap(&s->real_volume, &root_source->channel_map, &s->channel_map);
562 /* We assume that if the sink implementor changed the default
563 * volume he did so in real_volume, because that is the usual
564 * place where he is supposed to place his changes. */
565 s->reference_volume = s->real_volume;
567 s->thread_info.soft_volume = s->soft_volume;
568 s->thread_info.soft_muted = s->muted;
569 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
571 pa_assert((s->flags & PA_SOURCE_HW_VOLUME_CTRL)
572 || (s->base_volume == PA_VOLUME_NORM
573 && ((s->flags & PA_SOURCE_DECIBEL_VOLUME || (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)))));
574 pa_assert(!(s->flags & PA_SOURCE_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
575 pa_assert(!(s->flags & PA_SOURCE_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
577 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
579 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
580 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
583 /* Called from main context */
584 void pa_source_unlink(pa_source *s) {
586 pa_source_output *o, *j = NULL;
589 pa_assert_ctl_context();
591 /* See pa_sink_unlink() for a couple of comments how this function
594 linked = PA_SOURCE_IS_LINKED(s->state);
597 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
599 if (s->state != PA_SOURCE_UNLINKED)
600 pa_namereg_unregister(s->core, s->name);
601 pa_idxset_remove_by_data(s->core->sources, s, NULL);
604 pa_idxset_remove_by_data(s->card->sources, s, NULL);
606 while ((o = pa_idxset_first(s->outputs, NULL))) {
608 pa_source_output_kill(o);
613 source_set_state(s, PA_SOURCE_UNLINKED);
615 s->state = PA_SOURCE_UNLINKED;
620 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
621 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
625 /* Called from main context */
626 static void source_free(pa_object *o) {
627 pa_source_output *so;
628 pa_source *s = PA_SOURCE(o);
631 pa_assert_ctl_context();
632 pa_assert(pa_source_refcnt(s) == 0);
634 if (PA_SOURCE_IS_LINKED(s->state))
637 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
639 pa_idxset_free(s->outputs, NULL, NULL);
641 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
642 pa_source_output_unref(so);
644 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
646 if (s->silence.memblock)
647 pa_memblock_unref(s->silence.memblock);
653 pa_proplist_free(s->proplist);
658 while ((p = pa_hashmap_steal_first(s->ports)))
659 pa_device_port_free(p);
661 pa_hashmap_free(s->ports, NULL, NULL);
667 /* Called from main context, and not while the IO thread is active, please */
668 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
669 pa_source_assert_ref(s);
670 pa_assert_ctl_context();
675 /* Called from main context, and not while the IO thread is active, please */
676 void pa_source_update_flags(pa_source *s, pa_source_flags_t mask, pa_source_flags_t value) {
677 pa_source_assert_ref(s);
678 pa_assert_ctl_context();
683 /* For now, allow only a minimal set of flags to be changed. */
684 pa_assert((mask & ~(PA_SOURCE_DYNAMIC_LATENCY|PA_SOURCE_LATENCY)) == 0);
686 s->flags = (s->flags & ~mask) | (value & mask);
689 /* Called from IO context, or before _put() from main context */
690 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
691 pa_source_assert_ref(s);
692 pa_source_assert_io_context(s);
694 s->thread_info.rtpoll = p;
697 /* Called from main context */
698 int pa_source_update_status(pa_source*s) {
699 pa_source_assert_ref(s);
700 pa_assert_ctl_context();
701 pa_assert(PA_SOURCE_IS_LINKED(s->state));
703 if (s->state == PA_SOURCE_SUSPENDED)
706 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
709 /* Called from main context */
710 int pa_source_suspend(pa_source *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
711 pa_source_assert_ref(s);
712 pa_assert_ctl_context();
713 pa_assert(PA_SOURCE_IS_LINKED(s->state));
714 pa_assert(cause != 0);
716 if (s->monitor_of && cause != PA_SUSPEND_PASSTHROUGH)
717 return -PA_ERR_NOTSUPPORTED;
720 s->suspend_cause |= cause;
722 s->suspend_cause &= ~cause;
724 if ((pa_source_get_state(s) == PA_SOURCE_SUSPENDED) == !!s->suspend_cause)
727 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
729 if (s->suspend_cause)
730 return source_set_state(s, PA_SOURCE_SUSPENDED);
732 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
735 /* Called from main context */
736 int pa_source_sync_suspend(pa_source *s) {
737 pa_sink_state_t state;
739 pa_source_assert_ref(s);
740 pa_assert_ctl_context();
741 pa_assert(PA_SOURCE_IS_LINKED(s->state));
742 pa_assert(s->monitor_of);
744 state = pa_sink_get_state(s->monitor_of);
746 if (state == PA_SINK_SUSPENDED)
747 return source_set_state(s, PA_SOURCE_SUSPENDED);
749 pa_assert(PA_SINK_IS_OPENED(state));
751 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
754 /* Called from main context */
755 pa_queue *pa_source_move_all_start(pa_source *s, pa_queue *q) {
756 pa_source_output *o, *n;
759 pa_source_assert_ref(s);
760 pa_assert_ctl_context();
761 pa_assert(PA_SOURCE_IS_LINKED(s->state));
766 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
767 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
769 pa_source_output_ref(o);
771 if (pa_source_output_start_move(o) >= 0)
774 pa_source_output_unref(o);
780 /* Called from main context */
781 void pa_source_move_all_finish(pa_source *s, pa_queue *q, pa_bool_t save) {
784 pa_source_assert_ref(s);
785 pa_assert_ctl_context();
786 pa_assert(PA_SOURCE_IS_LINKED(s->state));
789 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
790 if (pa_source_output_finish_move(o, s, save) < 0)
791 pa_source_output_fail_move(o);
793 pa_source_output_unref(o);
796 pa_queue_free(q, NULL, NULL);
799 /* Called from main context */
800 void pa_source_move_all_fail(pa_queue *q) {
803 pa_assert_ctl_context();
806 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
807 pa_source_output_fail_move(o);
808 pa_source_output_unref(o);
811 pa_queue_free(q, NULL, NULL);
814 /* Called from IO thread context */
815 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
819 pa_source_assert_ref(s);
820 pa_source_assert_io_context(s);
821 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
826 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
829 pa_log_debug("Processing rewind...");
831 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
832 pa_source_output_assert_ref(o);
833 pa_source_output_process_rewind(o, nbytes);
837 /* Called from IO thread context */
838 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
842 pa_source_assert_ref(s);
843 pa_source_assert_io_context(s);
844 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
847 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
850 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
851 pa_memchunk vchunk = *chunk;
853 pa_memblock_ref(vchunk.memblock);
854 pa_memchunk_make_writable(&vchunk, 0);
856 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
857 pa_silence_memchunk(&vchunk, &s->sample_spec);
859 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
861 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
862 pa_source_output_assert_ref(o);
864 if (!o->thread_info.direct_on_input)
865 pa_source_output_push(o, &vchunk);
868 pa_memblock_unref(vchunk.memblock);
871 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
872 pa_source_output_assert_ref(o);
874 if (!o->thread_info.direct_on_input)
875 pa_source_output_push(o, chunk);
880 /* Called from IO thread context */
881 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
882 pa_source_assert_ref(s);
883 pa_source_assert_io_context(s);
884 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
885 pa_source_output_assert_ref(o);
886 pa_assert(o->thread_info.direct_on_input);
889 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
892 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
893 pa_memchunk vchunk = *chunk;
895 pa_memblock_ref(vchunk.memblock);
896 pa_memchunk_make_writable(&vchunk, 0);
898 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
899 pa_silence_memchunk(&vchunk, &s->sample_spec);
901 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
903 pa_source_output_push(o, &vchunk);
905 pa_memblock_unref(vchunk.memblock);
907 pa_source_output_push(o, chunk);
910 /* Called from main thread */
911 pa_usec_t pa_source_get_latency(pa_source *s) {
914 pa_source_assert_ref(s);
915 pa_assert_ctl_context();
916 pa_assert(PA_SOURCE_IS_LINKED(s->state));
918 if (s->state == PA_SOURCE_SUSPENDED)
921 if (!(s->flags & PA_SOURCE_LATENCY))
924 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
929 /* Called from IO thread */
930 pa_usec_t pa_source_get_latency_within_thread(pa_source *s) {
934 pa_source_assert_ref(s);
935 pa_source_assert_io_context(s);
936 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
938 /* The returned value is supposed to be in the time domain of the sound card! */
940 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
943 if (!(s->flags & PA_SOURCE_LATENCY))
948 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
950 if (o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
956 /* Called from the main thread (and also from the IO thread while the main
957 * thread is waiting).
959 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
960 * set. Instead, flat volume mode is detected by checking whether the root source
961 * has the flag set. */
962 pa_bool_t pa_source_flat_volume_enabled(pa_source *s) {
963 pa_source_assert_ref(s);
965 while (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)
966 s = s->output_from_master->source;
968 return (s->flags & PA_SOURCE_FLAT_VOLUME);
971 /* Called from main context */
972 pa_bool_t pa_source_is_passthrough(pa_source *s) {
974 pa_source_assert_ref(s);
976 /* NB Currently only monitor sources support passthrough mode */
977 return (s->monitor_of && pa_sink_is_passthrough(s->monitor_of));
980 /* Called from main context. */
981 static void compute_reference_ratio(pa_source_output *o) {
986 pa_assert(pa_source_flat_volume_enabled(o->source));
989 * Calculates the reference ratio from the source's reference
990 * volume. This basically calculates:
992 * o->reference_ratio = o->volume / o->source->reference_volume
995 remapped = o->source->reference_volume;
996 pa_cvolume_remap(&remapped, &o->source->channel_map, &o->channel_map);
998 o->reference_ratio.channels = o->sample_spec.channels;
1000 for (c = 0; c < o->sample_spec.channels; c++) {
1002 /* We don't update when the source volume is 0 anyway */
1003 if (remapped.values[c] <= PA_VOLUME_MUTED)
1006 /* Don't update the reference ratio unless necessary */
1007 if (pa_sw_volume_multiply(
1008 o->reference_ratio.values[c],
1009 remapped.values[c]) == o->volume.values[c])
1012 o->reference_ratio.values[c] = pa_sw_volume_divide(
1013 o->volume.values[c],
1014 remapped.values[c]);
1018 /* Called from main context. Only called for the root source in volume sharing
1019 * cases, except for internal recursive calls. */
1020 static void compute_reference_ratios(pa_source *s) {
1022 pa_source_output *o;
1024 pa_source_assert_ref(s);
1025 pa_assert_ctl_context();
1026 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1027 pa_assert(pa_source_flat_volume_enabled(s));
1029 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1030 compute_reference_ratio(o);
1032 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1033 compute_reference_ratios(o->destination_source);
1037 /* Called from main context. Only called for the root source in volume sharing
1038 * cases, except for internal recursive calls. */
1039 static void compute_real_ratios(pa_source *s) {
1040 pa_source_output *o;
1043 pa_source_assert_ref(s);
1044 pa_assert_ctl_context();
1045 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1046 pa_assert(pa_source_flat_volume_enabled(s));
1048 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1050 pa_cvolume remapped;
1052 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1053 /* The origin source uses volume sharing, so this input's real ratio
1054 * is handled as a special case - the real ratio must be 0 dB, and
1055 * as a result i->soft_volume must equal i->volume_factor. */
1056 pa_cvolume_reset(&o->real_ratio, o->real_ratio.channels);
1057 o->soft_volume = o->volume_factor;
1059 compute_real_ratios(o->destination_source);
1065 * This basically calculates:
1067 * i->real_ratio := i->volume / s->real_volume
1068 * i->soft_volume := i->real_ratio * i->volume_factor
1071 remapped = s->real_volume;
1072 pa_cvolume_remap(&remapped, &s->channel_map, &o->channel_map);
1074 o->real_ratio.channels = o->sample_spec.channels;
1075 o->soft_volume.channels = o->sample_spec.channels;
1077 for (c = 0; c < o->sample_spec.channels; c++) {
1079 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1080 /* We leave o->real_ratio untouched */
1081 o->soft_volume.values[c] = PA_VOLUME_MUTED;
1085 /* Don't lose accuracy unless necessary */
1086 if (pa_sw_volume_multiply(
1087 o->real_ratio.values[c],
1088 remapped.values[c]) != o->volume.values[c])
1090 o->real_ratio.values[c] = pa_sw_volume_divide(
1091 o->volume.values[c],
1092 remapped.values[c]);
1094 o->soft_volume.values[c] = pa_sw_volume_multiply(
1095 o->real_ratio.values[c],
1096 o->volume_factor.values[c]);
1099 /* We don't copy the soft_volume to the thread_info data
1100 * here. That must be done by the caller */
1104 static pa_cvolume *cvolume_remap_minimal_impact(
1106 const pa_cvolume *template,
1107 const pa_channel_map *from,
1108 const pa_channel_map *to) {
1113 pa_assert(template);
1116 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1117 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1119 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1120 * mapping from source output to source volumes:
1122 * If template is a possible remapping from v it is used instead
1123 * of remapping anew.
1125 * If the channel maps don't match we set an all-channel volume on
1126 * the source to ensure that changing a volume on one stream has no
1127 * effect that cannot be compensated for in another stream that
1128 * does not have the same channel map as the source. */
1130 if (pa_channel_map_equal(from, to))
1134 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1139 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1143 /* Called from main thread. Only called for the root source in volume sharing
1144 * cases, except for internal recursive calls. */
1145 static void get_maximum_output_volume(pa_source *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1146 pa_source_output *o;
1149 pa_source_assert_ref(s);
1150 pa_assert(max_volume);
1151 pa_assert(channel_map);
1152 pa_assert(pa_source_flat_volume_enabled(s));
1154 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1155 pa_cvolume remapped;
1157 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1158 get_maximum_output_volume(o->destination_source, max_volume, channel_map);
1160 /* Ignore this output. The origin source uses volume sharing, so this
1161 * output's volume will be set to be equal to the root source's real
1162 * volume. Obviously this outputs's current volume must not then
1163 * affect what the root source's real volume will be. */
1167 remapped = o->volume;
1168 cvolume_remap_minimal_impact(&remapped, max_volume, &o->channel_map, channel_map);
1169 pa_cvolume_merge(max_volume, max_volume, &remapped);
1173 /* Called from main thread. Only called for the root source in volume sharing
1174 * cases, except for internal recursive calls. */
1175 static pa_bool_t has_outputs(pa_source *s) {
1176 pa_source_output *o;
1179 pa_source_assert_ref(s);
1181 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1182 if (!o->destination_source || !(o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || has_outputs(o->destination_source))
1189 /* Called from main thread. Only called for the root source in volume sharing
1190 * cases, except for internal recursive calls. */
1191 static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1192 pa_source_output *o;
1195 pa_source_assert_ref(s);
1196 pa_assert(new_volume);
1197 pa_assert(channel_map);
1199 s->real_volume = *new_volume;
1200 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1202 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1203 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1204 if (pa_source_flat_volume_enabled(s)) {
1205 pa_cvolume old_volume = o->volume;
1207 /* Follow the root source's real volume. */
1208 o->volume = *new_volume;
1209 pa_cvolume_remap(&o->volume, channel_map, &o->channel_map);
1210 compute_reference_ratio(o);
1212 /* The volume changed, let's tell people so */
1213 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1214 if (o->volume_changed)
1215 o->volume_changed(o);
1217 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1221 update_real_volume(o->destination_source, new_volume, channel_map);
1226 /* Called from main thread. Only called for the root source in shared volume
1228 static void compute_real_volume(pa_source *s) {
1229 pa_source_assert_ref(s);
1230 pa_assert_ctl_context();
1231 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1232 pa_assert(pa_source_flat_volume_enabled(s));
1233 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1235 /* This determines the maximum volume of all streams and sets
1236 * s->real_volume accordingly. */
1238 if (!has_outputs(s)) {
1239 /* In the special case that we have no source outputs we leave the
1240 * volume unmodified. */
1241 update_real_volume(s, &s->reference_volume, &s->channel_map);
1245 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1247 /* First let's determine the new maximum volume of all outputs
1248 * connected to this source */
1249 get_maximum_output_volume(s, &s->real_volume, &s->channel_map);
1250 update_real_volume(s, &s->real_volume, &s->channel_map);
1252 /* Then, let's update the real ratios/soft volumes of all outputs
1253 * connected to this source */
1254 compute_real_ratios(s);
1257 /* Called from main thread. Only called for the root source in shared volume
1258 * cases, except for internal recursive calls. */
1259 static void propagate_reference_volume(pa_source *s) {
1260 pa_source_output *o;
1263 pa_source_assert_ref(s);
1264 pa_assert_ctl_context();
1265 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1266 pa_assert(pa_source_flat_volume_enabled(s));
1268 /* This is called whenever the source volume changes that is not
1269 * caused by a source output volume change. We need to fix up the
1270 * source output volumes accordingly */
1272 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1273 pa_cvolume old_volume;
1275 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1276 propagate_reference_volume(o->destination_source);
1278 /* Since the origin source uses volume sharing, this output's volume
1279 * needs to be updated to match the root source's real volume, but
1280 * that will be done later in update_shared_real_volume(). */
1284 old_volume = o->volume;
1286 /* This basically calculates:
1288 * o->volume := o->reference_volume * o->reference_ratio */
1290 o->volume = s->reference_volume;
1291 pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
1292 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1294 /* The volume changed, let's tell people so */
1295 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1297 if (o->volume_changed)
1298 o->volume_changed(o);
1300 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1305 /* Called from main thread. Only called for the root source in volume sharing
1306 * cases, except for internal recursive calls. The return value indicates
1307 * whether any reference volume actually changed. */
1308 static pa_bool_t update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1310 pa_bool_t reference_volume_changed;
1311 pa_source_output *o;
1314 pa_source_assert_ref(s);
1315 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1317 pa_assert(channel_map);
1318 pa_assert(pa_cvolume_valid(v));
1321 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1323 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1324 s->reference_volume = volume;
1326 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1328 if (reference_volume_changed)
1329 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1330 else if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1331 /* If the root source's volume doesn't change, then there can't be any
1332 * changes in the other source in the source tree either.
1334 * It's probably theoretically possible that even if the root source's
1335 * volume changes slightly, some filter source doesn't change its volume
1336 * due to rounding errors. If that happens, we still want to propagate
1337 * the changed root source volume to the sources connected to the
1338 * intermediate source that didn't change its volume. This theoretical
1339 * possiblity is the reason why we have that !(s->flags &
1340 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1341 * notice even if we returned here FALSE always if
1342 * reference_volume_changed is FALSE. */
1345 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1346 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1347 update_reference_volume(o->destination_source, v, channel_map, FALSE);
1353 /* Called from main thread */
1354 void pa_source_set_volume(
1356 const pa_cvolume *volume,
1360 pa_cvolume new_reference_volume;
1361 pa_source *root_source = s;
1363 pa_source_assert_ref(s);
1364 pa_assert_ctl_context();
1365 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1366 pa_assert(!volume || pa_cvolume_valid(volume));
1367 pa_assert(volume || pa_source_flat_volume_enabled(s));
1368 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1370 /* make sure we don't change the volume when a PASSTHROUGH output is connected */
1371 if (pa_source_is_passthrough(s)) {
1372 /* FIXME: Need to notify client that volume control is disabled */
1373 pa_log_warn("Cannot change volume, Source is monitor of a PASSTHROUGH sink");
1377 /* In case of volume sharing, the volume is set for the root source first,
1378 * from which it's then propagated to the sharing sources. */
1379 while (root_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)
1380 root_source = root_source->output_from_master->source;
1382 /* As a special exception we accept mono volumes on all sources --
1383 * even on those with more complex channel maps */
1386 if (pa_cvolume_compatible(volume, &s->sample_spec))
1387 new_reference_volume = *volume;
1389 new_reference_volume = s->reference_volume;
1390 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1393 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1396 /* If volume is NULL we synchronize the source's real and reference
1397 * volumes with the stream volumes. If it is not NULL we update
1398 * the reference_volume with it. */
1401 if (update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save)) {
1402 if (pa_source_flat_volume_enabled(root_source)) {
1403 /* OK, propagate this volume change back to the outputs */
1404 propagate_reference_volume(root_source);
1406 /* And now recalculate the real volume */
1407 compute_real_volume(root_source);
1409 update_real_volume(root_source, &root_source->reference_volume, &root_source->channel_map);
1413 pa_assert(pa_source_flat_volume_enabled(root_source));
1415 /* Ok, let's determine the new real volume */
1416 compute_real_volume(root_source);
1418 /* Let's 'push' the reference volume if necessary */
1419 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_source->real_volume);
1420 update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save);
1422 /* Now that the reference volume is updated, we can update the streams'
1423 * reference ratios. */
1424 compute_reference_ratios(root_source);
1427 if (root_source->set_volume) {
1428 /* If we have a function set_volume(), then we do not apply a
1429 * soft volume by default. However, set_volume() is free to
1430 * apply one to root_source->soft_volume */
1432 pa_cvolume_reset(&root_source->soft_volume, root_source->sample_spec.channels);
1433 if (!(root_source->flags & PA_SOURCE_SYNC_VOLUME))
1434 root_source->set_volume(root_source);
1437 /* If we have no function set_volume(), then the soft volume
1438 * becomes the real volume */
1439 root_source->soft_volume = root_source->real_volume;
1441 /* This tells the source that soft volume and/or real volume changed */
1443 pa_assert_se(pa_asyncmsgq_send(root_source->asyncmsgq, PA_MSGOBJECT(root_source), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1446 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1447 * Only to be called by source implementor */
1448 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
1450 pa_source_assert_ref(s);
1451 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1453 if (s->flags & PA_SOURCE_SYNC_VOLUME)
1454 pa_source_assert_io_context(s);
1456 pa_assert_ctl_context();
1459 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
1461 s->soft_volume = *volume;
1463 if (PA_SOURCE_IS_LINKED(s->state) && !(s->flags & PA_SOURCE_SYNC_VOLUME))
1464 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
1466 s->thread_info.soft_volume = s->soft_volume;
1469 /* Called from the main thread. Only called for the root source in volume sharing
1470 * cases, except for internal recursive calls. */
1471 static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volume) {
1472 pa_source_output *o;
1475 pa_source_assert_ref(s);
1476 pa_assert(old_real_volume);
1477 pa_assert_ctl_context();
1478 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1480 /* This is called when the hardware's real volume changes due to
1481 * some external event. We copy the real volume into our
1482 * reference volume and then rebuild the stream volumes based on
1483 * i->real_ratio which should stay fixed. */
1485 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1486 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
1489 /* 1. Make the real volume the reference volume */
1490 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
1493 if (pa_source_flat_volume_enabled(s)) {
1495 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1496 pa_cvolume old_volume = o->volume;
1498 /* 2. Since the source's reference and real volumes are equal
1499 * now our ratios should be too. */
1500 o->reference_ratio = o->real_ratio;
1502 /* 3. Recalculate the new stream reference volume based on the
1503 * reference ratio and the sink's reference volume.
1505 * This basically calculates:
1507 * o->volume = s->reference_volume * o->reference_ratio
1509 * This is identical to propagate_reference_volume() */
1510 o->volume = s->reference_volume;
1511 pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
1512 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1514 /* Notify if something changed */
1515 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1517 if (o->volume_changed)
1518 o->volume_changed(o);
1520 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1523 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1524 propagate_real_volume(o->destination_source, old_real_volume);
1528 /* Something got changed in the hardware. It probably makes sense
1529 * to save changed hw settings given that hw volume changes not
1530 * triggered by PA are almost certainly done by the user. */
1531 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1532 s->save_volume = TRUE;
1535 /* Called from io thread */
1536 void pa_source_update_volume_and_mute(pa_source *s) {
1538 pa_source_assert_io_context(s);
1540 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
1543 /* Called from main thread */
1544 const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
1545 pa_source_assert_ref(s);
1546 pa_assert_ctl_context();
1547 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1549 if (s->refresh_volume || force_refresh) {
1550 struct pa_cvolume old_real_volume;
1552 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1554 old_real_volume = s->real_volume;
1556 if (!(s->flags & PA_SOURCE_SYNC_VOLUME) && s->get_volume)
1559 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
1561 update_real_volume(s, &s->real_volume, &s->channel_map);
1562 propagate_real_volume(s, &old_real_volume);
1565 return &s->reference_volume;
1568 /* Called from main thread. In volume sharing cases, only the root source may
1570 void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_real_volume) {
1571 pa_cvolume old_real_volume;
1573 pa_source_assert_ref(s);
1574 pa_assert_ctl_context();
1575 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1576 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1578 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1580 old_real_volume = s->real_volume;
1581 update_real_volume(s, new_real_volume, &s->channel_map);
1582 propagate_real_volume(s, &old_real_volume);
1585 /* Called from main thread */
1586 void pa_source_set_mute(pa_source *s, pa_bool_t mute, pa_bool_t save) {
1587 pa_bool_t old_muted;
1589 pa_source_assert_ref(s);
1590 pa_assert_ctl_context();
1591 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1593 old_muted = s->muted;
1595 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
1597 if (!(s->flags & PA_SOURCE_SYNC_VOLUME) && s->set_mute)
1600 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1602 if (old_muted != s->muted)
1603 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1606 /* Called from main thread */
1607 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
1609 pa_source_assert_ref(s);
1610 pa_assert_ctl_context();
1611 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1613 if (s->refresh_muted || force_refresh) {
1614 pa_bool_t old_muted = s->muted;
1616 if (!(s->flags & PA_SOURCE_SYNC_VOLUME) && s->get_mute)
1619 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
1621 if (old_muted != s->muted) {
1622 s->save_muted = TRUE;
1624 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1626 /* Make sure the soft mute status stays in sync */
1627 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1634 /* Called from main thread */
1635 void pa_source_mute_changed(pa_source *s, pa_bool_t new_muted) {
1636 pa_source_assert_ref(s);
1637 pa_assert_ctl_context();
1638 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1640 /* The source implementor may call this if the mute state changed to make sure everyone is notified */
1642 if (s->muted == new_muted)
1645 s->muted = new_muted;
1646 s->save_muted = TRUE;
1648 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1651 /* Called from main thread */
1652 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
1653 pa_source_assert_ref(s);
1654 pa_assert_ctl_context();
1657 pa_proplist_update(s->proplist, mode, p);
1659 if (PA_SOURCE_IS_LINKED(s->state)) {
1660 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1661 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1667 /* Called from main thread */
1668 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1669 void pa_source_set_description(pa_source *s, const char *description) {
1671 pa_source_assert_ref(s);
1672 pa_assert_ctl_context();
1674 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
1677 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1679 if (old && description && pa_streq(old, description))
1683 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
1685 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1687 if (PA_SOURCE_IS_LINKED(s->state)) {
1688 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1689 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1693 /* Called from main thread */
1694 unsigned pa_source_linked_by(pa_source *s) {
1695 pa_source_assert_ref(s);
1696 pa_assert_ctl_context();
1697 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1699 return pa_idxset_size(s->outputs);
1702 /* Called from main thread */
1703 unsigned pa_source_used_by(pa_source *s) {
1706 pa_source_assert_ref(s);
1707 pa_assert_ctl_context();
1708 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1710 ret = pa_idxset_size(s->outputs);
1711 pa_assert(ret >= s->n_corked);
1713 return ret - s->n_corked;
1716 /* Called from main thread */
1717 unsigned pa_source_check_suspend(pa_source *s) {
1719 pa_source_output *o;
1722 pa_source_assert_ref(s);
1723 pa_assert_ctl_context();
1725 if (!PA_SOURCE_IS_LINKED(s->state))
1730 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1731 pa_source_output_state_t st;
1733 st = pa_source_output_get_state(o);
1735 /* We do not assert here. It is perfectly valid for a source output to
1736 * be in the INIT state (i.e. created, marked done but not yet put)
1737 * and we should not care if it's unlinked as it won't contribute
1738 * towarards our busy status.
1740 if (!PA_SOURCE_OUTPUT_IS_LINKED(st))
1743 if (st == PA_SOURCE_OUTPUT_CORKED)
1746 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
1755 /* Called from the IO thread */
1756 static void sync_output_volumes_within_thread(pa_source *s) {
1757 pa_source_output *o;
1760 pa_source_assert_ref(s);
1761 pa_source_assert_io_context(s);
1763 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
1764 if (pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume))
1767 o->thread_info.soft_volume = o->soft_volume;
1768 //pa_source_output_request_rewind(o, 0, TRUE, FALSE, FALSE);
1772 /* Called from the IO thread. Only called for the root source in volume sharing
1773 * cases, except for internal recursive calls. */
1774 static void set_shared_volume_within_thread(pa_source *s) {
1775 pa_source_output *o;
1778 pa_source_assert_ref(s);
1780 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
1782 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
1783 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1784 set_shared_volume_within_thread(o->destination_source);
1788 /* Called from IO thread, except when it is not */
1789 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1790 pa_source *s = PA_SOURCE(object);
1791 pa_source_assert_ref(s);
1793 switch ((pa_source_message_t) code) {
1795 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
1796 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
1798 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
1800 if (o->direct_on_input) {
1801 o->thread_info.direct_on_input = o->direct_on_input;
1802 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
1805 pa_assert(!o->thread_info.attached);
1806 o->thread_info.attached = TRUE;
1811 pa_source_output_set_state_within_thread(o, o->state);
1813 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
1814 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
1816 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
1818 /* We don't just invalidate the requested latency here,
1819 * because if we are in a move we might need to fix up the
1820 * requested latency. */
1821 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
1823 /* In flat volume mode we need to update the volume as
1825 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
1828 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
1829 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
1831 pa_source_output_set_state_within_thread(o, o->state);
1836 pa_assert(o->thread_info.attached);
1837 o->thread_info.attached = FALSE;
1839 if (o->thread_info.direct_on_input) {
1840 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
1841 o->thread_info.direct_on_input = NULL;
1844 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
1845 pa_source_output_unref(o);
1847 pa_source_invalidate_requested_latency(s, TRUE);
1849 /* In flat volume mode we need to update the volume as
1851 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
1854 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME: {
1855 pa_source *root_source = s;
1857 while (root_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)
1858 root_source = root_source->output_from_master->source;
1860 set_shared_volume_within_thread(root_source);
1864 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED:
1866 if (s->flags & PA_SOURCE_SYNC_VOLUME) {
1868 pa_source_volume_change_push(s);
1870 /* Fall through ... */
1872 case PA_SOURCE_MESSAGE_SET_VOLUME:
1874 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
1875 s->thread_info.soft_volume = s->soft_volume;
1878 /* Fall through ... */
1880 case PA_SOURCE_MESSAGE_SYNC_VOLUMES:
1881 sync_output_volumes_within_thread(s);
1884 case PA_SOURCE_MESSAGE_GET_VOLUME:
1886 if ((s->flags & PA_SOURCE_SYNC_VOLUME) && s->get_volume) {
1888 pa_source_volume_change_flush(s);
1889 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
1892 /* In case source implementor reset SW volume. */
1893 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
1894 s->thread_info.soft_volume = s->soft_volume;
1899 case PA_SOURCE_MESSAGE_SET_MUTE:
1901 if (s->thread_info.soft_muted != s->muted) {
1902 s->thread_info.soft_muted = s->muted;
1905 if (s->flags & PA_SOURCE_SYNC_VOLUME && s->set_mute)
1910 case PA_SOURCE_MESSAGE_GET_MUTE:
1912 if (s->flags & PA_SOURCE_SYNC_VOLUME && s->get_mute)
1917 case PA_SOURCE_MESSAGE_SET_STATE: {
1919 pa_bool_t suspend_change =
1920 (s->thread_info.state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
1921 (PA_SOURCE_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SOURCE_SUSPENDED);
1923 s->thread_info.state = PA_PTR_TO_UINT(userdata);
1925 if (suspend_change) {
1926 pa_source_output *o;
1929 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1930 if (o->suspend_within_thread)
1931 o->suspend_within_thread(o, s->thread_info.state == PA_SOURCE_SUSPENDED);
1937 case PA_SOURCE_MESSAGE_DETACH:
1939 /* Detach all streams */
1940 pa_source_detach_within_thread(s);
1943 case PA_SOURCE_MESSAGE_ATTACH:
1945 /* Reattach all streams */
1946 pa_source_attach_within_thread(s);
1949 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
1951 pa_usec_t *usec = userdata;
1952 *usec = pa_source_get_requested_latency_within_thread(s);
1954 /* Yes, that's right, the IO thread will see -1 when no
1955 * explicit requested latency is configured, the main
1956 * thread will see max_latency */
1957 if (*usec == (pa_usec_t) -1)
1958 *usec = s->thread_info.max_latency;
1963 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
1964 pa_usec_t *r = userdata;
1966 pa_source_set_latency_range_within_thread(s, r[0], r[1]);
1971 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
1972 pa_usec_t *r = userdata;
1974 r[0] = s->thread_info.min_latency;
1975 r[1] = s->thread_info.max_latency;
1980 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY:
1982 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
1985 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY:
1987 pa_source_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
1990 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
1992 *((size_t*) userdata) = s->thread_info.max_rewind;
1995 case PA_SOURCE_MESSAGE_SET_MAX_REWIND:
1997 pa_source_set_max_rewind_within_thread(s, (size_t) offset);
2000 case PA_SOURCE_MESSAGE_GET_LATENCY:
2002 if (s->monitor_of) {
2003 *((pa_usec_t*) userdata) = 0;
2007 /* Implementors need to overwrite this implementation! */
2010 case PA_SOURCE_MESSAGE_SET_PORT:
2012 pa_assert(userdata);
2014 struct source_message_set_port *msg_data = userdata;
2015 msg_data->ret = s->set_port(s, msg_data->port);
2019 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2020 /* This message is sent from IO-thread and handled in main thread. */
2021 pa_assert_ctl_context();
2023 pa_source_get_volume(s, TRUE);
2024 pa_source_get_mute(s, TRUE);
2027 case PA_SOURCE_MESSAGE_MAX:
2034 /* Called from main thread */
2035 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2040 pa_core_assert_ref(c);
2041 pa_assert_ctl_context();
2042 pa_assert(cause != 0);
2044 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx))) {
2047 if (source->monitor_of)
2050 if ((r = pa_source_suspend(source, suspend, cause)) < 0)
2057 /* Called from main thread */
2058 void pa_source_detach(pa_source *s) {
2059 pa_source_assert_ref(s);
2060 pa_assert_ctl_context();
2061 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2063 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2066 /* Called from main thread */
2067 void pa_source_attach(pa_source *s) {
2068 pa_source_assert_ref(s);
2069 pa_assert_ctl_context();
2070 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2072 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2075 /* Called from IO thread */
2076 void pa_source_detach_within_thread(pa_source *s) {
2077 pa_source_output *o;
2080 pa_source_assert_ref(s);
2081 pa_source_assert_io_context(s);
2082 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2084 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2089 /* Called from IO thread */
2090 void pa_source_attach_within_thread(pa_source *s) {
2091 pa_source_output *o;
2094 pa_source_assert_ref(s);
2095 pa_source_assert_io_context(s);
2096 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2098 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2103 /* Called from IO thread */
2104 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
2105 pa_usec_t result = (pa_usec_t) -1;
2106 pa_source_output *o;
2109 pa_source_assert_ref(s);
2110 pa_source_assert_io_context(s);
2112 if (!(s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2113 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2115 if (s->thread_info.requested_latency_valid)
2116 return s->thread_info.requested_latency;
2118 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2119 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
2120 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
2121 result = o->thread_info.requested_source_latency;
2123 if (result != (pa_usec_t) -1)
2124 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2126 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2127 /* Only cache this if we are fully set up */
2128 s->thread_info.requested_latency = result;
2129 s->thread_info.requested_latency_valid = TRUE;
2135 /* Called from main thread */
2136 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
2139 pa_source_assert_ref(s);
2140 pa_assert_ctl_context();
2141 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2143 if (s->state == PA_SOURCE_SUSPENDED)
2146 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2151 /* Called from IO thread */
2152 void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind) {
2153 pa_source_output *o;
2156 pa_source_assert_ref(s);
2157 pa_source_assert_io_context(s);
2159 if (max_rewind == s->thread_info.max_rewind)
2162 s->thread_info.max_rewind = max_rewind;
2164 if (PA_SOURCE_IS_LINKED(s->thread_info.state))
2165 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2166 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2169 /* Called from main thread */
2170 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
2171 pa_source_assert_ref(s);
2172 pa_assert_ctl_context();
2174 if (PA_SOURCE_IS_LINKED(s->state))
2175 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
2177 pa_source_set_max_rewind_within_thread(s, max_rewind);
2180 /* Called from IO thread */
2181 void pa_source_invalidate_requested_latency(pa_source *s, pa_bool_t dynamic) {
2182 pa_source_output *o;
2185 pa_source_assert_ref(s);
2186 pa_source_assert_io_context(s);
2188 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2189 s->thread_info.requested_latency_valid = FALSE;
2193 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2195 if (s->update_requested_latency)
2196 s->update_requested_latency(s);
2198 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2199 if (o->update_source_requested_latency)
2200 o->update_source_requested_latency(o);
2204 pa_sink_invalidate_requested_latency(s->monitor_of, dynamic);
2207 /* Called from main thread */
2208 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2209 pa_source_assert_ref(s);
2210 pa_assert_ctl_context();
2212 /* min_latency == 0: no limit
2213 * min_latency anything else: specified limit
2215 * Similar for max_latency */
2217 if (min_latency < ABSOLUTE_MIN_LATENCY)
2218 min_latency = ABSOLUTE_MIN_LATENCY;
2220 if (max_latency <= 0 ||
2221 max_latency > ABSOLUTE_MAX_LATENCY)
2222 max_latency = ABSOLUTE_MAX_LATENCY;
2224 pa_assert(min_latency <= max_latency);
2226 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2227 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2228 max_latency == ABSOLUTE_MAX_LATENCY) ||
2229 (s->flags & PA_SOURCE_DYNAMIC_LATENCY));
2231 if (PA_SOURCE_IS_LINKED(s->state)) {
2237 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
2239 pa_source_set_latency_range_within_thread(s, min_latency, max_latency);
2242 /* Called from main thread */
2243 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
2244 pa_source_assert_ref(s);
2245 pa_assert_ctl_context();
2246 pa_assert(min_latency);
2247 pa_assert(max_latency);
2249 if (PA_SOURCE_IS_LINKED(s->state)) {
2250 pa_usec_t r[2] = { 0, 0 };
2252 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
2254 *min_latency = r[0];
2255 *max_latency = r[1];
2257 *min_latency = s->thread_info.min_latency;
2258 *max_latency = s->thread_info.max_latency;
2262 /* Called from IO thread, and from main thread before pa_source_put() is called */
2263 void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2264 pa_source_assert_ref(s);
2265 pa_source_assert_io_context(s);
2267 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
2268 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
2269 pa_assert(min_latency <= max_latency);
2271 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2272 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2273 max_latency == ABSOLUTE_MAX_LATENCY) ||
2274 (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ||
2277 if (s->thread_info.min_latency == min_latency &&
2278 s->thread_info.max_latency == max_latency)
2281 s->thread_info.min_latency = min_latency;
2282 s->thread_info.max_latency = max_latency;
2284 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2285 pa_source_output *o;
2288 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2289 if (o->update_source_latency_range)
2290 o->update_source_latency_range(o);
2293 pa_source_invalidate_requested_latency(s, FALSE);
2296 /* Called from main thread, before the source is put */
2297 void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency) {
2298 pa_source_assert_ref(s);
2299 pa_assert_ctl_context();
2301 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2302 pa_assert(latency == 0);
2306 if (latency < ABSOLUTE_MIN_LATENCY)
2307 latency = ABSOLUTE_MIN_LATENCY;
2309 if (latency > ABSOLUTE_MAX_LATENCY)
2310 latency = ABSOLUTE_MAX_LATENCY;
2312 if (PA_SOURCE_IS_LINKED(s->state))
2313 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
2315 s->thread_info.fixed_latency = latency;
2318 /* Called from main thread */
2319 pa_usec_t pa_source_get_fixed_latency(pa_source *s) {
2322 pa_source_assert_ref(s);
2323 pa_assert_ctl_context();
2325 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY)
2328 if (PA_SOURCE_IS_LINKED(s->state))
2329 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
2331 latency = s->thread_info.fixed_latency;
2336 /* Called from IO thread */
2337 void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency) {
2338 pa_source_assert_ref(s);
2339 pa_source_assert_io_context(s);
2341 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2342 pa_assert(latency == 0);
2346 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
2347 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
2349 if (s->thread_info.fixed_latency == latency)
2352 s->thread_info.fixed_latency = latency;
2354 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2355 pa_source_output *o;
2358 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2359 if (o->update_source_fixed_latency)
2360 o->update_source_fixed_latency(o);
2363 pa_source_invalidate_requested_latency(s, FALSE);
2366 /* Called from main thread */
2367 size_t pa_source_get_max_rewind(pa_source *s) {
2369 pa_assert_ctl_context();
2370 pa_source_assert_ref(s);
2372 if (!PA_SOURCE_IS_LINKED(s->state))
2373 return s->thread_info.max_rewind;
2375 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
2380 /* Called from main context */
2381 int pa_source_set_port(pa_source *s, const char *name, pa_bool_t save) {
2382 pa_device_port *port;
2385 pa_source_assert_ref(s);
2386 pa_assert_ctl_context();
2389 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s->index, s->name);
2390 return -PA_ERR_NOTIMPLEMENTED;
2394 return -PA_ERR_NOENTITY;
2396 if (!(port = pa_hashmap_get(s->ports, name)))
2397 return -PA_ERR_NOENTITY;
2399 if (s->active_port == port) {
2400 s->save_port = s->save_port || save;
2404 if (s->flags & PA_SOURCE_SYNC_VOLUME) {
2405 struct source_message_set_port msg = { .port = port, .ret = 0 };
2406 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
2410 ret = s->set_port(s, port);
2413 return -PA_ERR_NOENTITY;
2415 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2417 pa_log_info("Changed port of source %u \"%s\" to %s", s->index, s->name, port->name);
2419 s->active_port = port;
2420 s->save_port = save;
2422 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_CHANGED], s);
2427 PA_STATIC_FLIST_DECLARE(pa_source_volume_change, 0, pa_xfree);
2429 /* Called from the IO thread. */
2430 static pa_source_volume_change *pa_source_volume_change_new(pa_source *s) {
2431 pa_source_volume_change *c;
2432 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change))))
2433 c = pa_xnew(pa_source_volume_change, 1);
2435 PA_LLIST_INIT(pa_source_volume_change, c);
2437 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
2441 /* Called from the IO thread. */
2442 static void pa_source_volume_change_free(pa_source_volume_change *c) {
2444 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change), c) < 0)
2448 /* Called from the IO thread. */
2449 void pa_source_volume_change_push(pa_source *s) {
2450 pa_source_volume_change *c = NULL;
2451 pa_source_volume_change *nc = NULL;
2452 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
2454 const char *direction = NULL;
2457 nc = pa_source_volume_change_new(s);
2459 /* NOTE: There is already more different volumes in pa_source that I can remember.
2460 * Adding one more volume for HW would get us rid of this, but I am trying
2461 * to survive with the ones we already have. */
2462 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
2464 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
2465 pa_log_debug("Volume not changing");
2466 pa_source_volume_change_free(nc);
2470 nc->at = pa_source_get_latency_within_thread(s);
2471 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
2473 if (s->thread_info.volume_changes_tail) {
2474 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
2475 /* If volume is going up let's do it a bit late. If it is going
2476 * down let's do it a bit early. */
2477 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
2478 if (nc->at + safety_margin > c->at) {
2479 nc->at += safety_margin;
2484 else if (nc->at - safety_margin > c->at) {
2485 nc->at -= safety_margin;
2493 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
2494 nc->at += safety_margin;
2497 nc->at -= safety_margin;
2500 PA_LLIST_PREPEND(pa_source_volume_change, s->thread_info.volume_changes, nc);
2503 PA_LLIST_INSERT_AFTER(pa_source_volume_change, s->thread_info.volume_changes, c, nc);
2506 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
2508 /* We can ignore volume events that came earlier but should happen later than this. */
2509 PA_LLIST_FOREACH(c, nc->next) {
2510 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
2511 pa_source_volume_change_free(c);
2514 s->thread_info.volume_changes_tail = nc;
2517 /* Called from the IO thread. */
2518 static void pa_source_volume_change_flush(pa_source *s) {
2519 pa_source_volume_change *c = s->thread_info.volume_changes;
2521 s->thread_info.volume_changes = NULL;
2522 s->thread_info.volume_changes_tail = NULL;
2524 pa_source_volume_change *next = c->next;
2525 pa_source_volume_change_free(c);
2530 /* Called from the IO thread. */
2531 pa_bool_t pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next) {
2532 pa_usec_t now = pa_rtclock_now();
2533 pa_bool_t ret = FALSE;
2536 pa_assert(s->write_volume);
2538 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
2539 pa_source_volume_change *c = s->thread_info.volume_changes;
2540 PA_LLIST_REMOVE(pa_source_volume_change, s->thread_info.volume_changes, c);
2541 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2542 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
2544 s->thread_info.current_hw_volume = c->hw_volume;
2545 pa_source_volume_change_free(c);
2548 if (s->write_volume && ret)
2551 if (s->thread_info.volume_changes) {
2553 *usec_to_next = s->thread_info.volume_changes->at - now;
2554 if (pa_log_ratelimit(PA_LOG_DEBUG))
2555 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
2560 s->thread_info.volume_changes_tail = NULL;
2566 /* Called from the main thread */
2567 /* Gets the list of formats supported by the source. The members and idxset must
2568 * be freed by the caller. */
2569 pa_idxset* pa_source_get_formats(pa_source *s) {
2574 if (s->get_formats) {
2575 /* Source supports format query, all is good */
2576 ret = s->get_formats(s);
2578 /* Source doesn't support format query, so assume it does PCM */
2579 pa_format_info *f = pa_format_info_new();
2580 f->encoding = PA_ENCODING_PCM;
2582 ret = pa_idxset_new(NULL, NULL);
2583 pa_idxset_put(ret, f, NULL);
2589 /* Called from the main thread */
2590 /* Checks if the source can accept this format */
2591 pa_bool_t pa_source_check_format(pa_source *s, pa_format_info *f)
2593 pa_idxset *formats = NULL;
2594 pa_bool_t ret = FALSE;
2599 formats = pa_source_get_formats(s);
2602 pa_format_info *finfo_device;
2605 PA_IDXSET_FOREACH(finfo_device, formats, i) {
2606 if (pa_format_info_is_compatible(finfo_device, f)) {
2612 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
2618 /* Called from the main thread */
2619 /* Calculates the intersection between formats supported by the source and
2620 * in_formats, and returns these, in the order of the source's formats. */
2621 pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats) {
2622 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *source_formats = NULL;
2623 pa_format_info *f_source, *f_in;
2628 if (!in_formats || pa_idxset_isempty(in_formats))
2631 source_formats = pa_source_get_formats(s);
2633 PA_IDXSET_FOREACH(f_source, source_formats, i) {
2634 PA_IDXSET_FOREACH(f_in, in_formats, j) {
2635 if (pa_format_info_is_compatible(f_source, f_in))
2636 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
2642 pa_idxset_free(source_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);