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_alternate_sample_rate(pa_source_new_data *data, const uint32_t alternate_sample_rate) {
104 data->alternate_sample_rate_is_set = TRUE;
105 data->alternate_sample_rate = alternate_sample_rate;
108 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume) {
111 if ((data->volume_is_set = !!volume))
112 data->volume = *volume;
115 void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute) {
118 data->muted_is_set = TRUE;
119 data->muted = !!mute;
122 void pa_source_new_data_set_port(pa_source_new_data *data, const char *port) {
125 pa_xfree(data->active_port);
126 data->active_port = pa_xstrdup(port);
129 void pa_source_new_data_done(pa_source_new_data *data) {
132 pa_proplist_free(data->proplist);
137 while ((p = pa_hashmap_steal_first(data->ports)))
138 pa_device_port_free(p);
140 pa_hashmap_free(data->ports, NULL, NULL);
143 pa_xfree(data->name);
144 pa_xfree(data->active_port);
147 /* Called from main context */
148 static void reset_callbacks(pa_source *s) {
152 s->get_volume = NULL;
153 s->set_volume = NULL;
154 s->write_volume = NULL;
157 s->update_requested_latency = NULL;
159 s->get_formats = NULL;
160 s->update_rate = NULL;
163 /* Called from main context */
164 pa_source* pa_source_new(
166 pa_source_new_data *data,
167 pa_source_flags_t flags) {
171 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
176 pa_assert(data->name);
177 pa_assert_ctl_context();
179 s = pa_msgobject_new(pa_source);
181 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
182 pa_log_debug("Failed to register name %s.", data->name);
187 pa_source_new_data_set_name(data, name);
189 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
191 pa_namereg_unregister(core, name);
195 /* FIXME, need to free s here on failure */
197 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
198 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
200 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
202 if (!data->channel_map_is_set)
203 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
205 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
206 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
208 /* FIXME: There should probably be a general function for checking whether
209 * the source volume is allowed to be set, like there is for source outputs. */
210 pa_assert(!data->volume_is_set || !(flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
212 if (!data->volume_is_set) {
213 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
214 data->save_volume = FALSE;
217 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
218 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
220 if (!data->muted_is_set)
224 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
226 pa_device_init_description(data->proplist);
227 pa_device_init_icon(data->proplist, FALSE);
228 pa_device_init_intended_roles(data->proplist);
230 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
232 pa_namereg_unregister(core, name);
236 s->parent.parent.free = source_free;
237 s->parent.process_msg = pa_source_process_msg;
240 s->state = PA_SOURCE_INIT;
243 s->suspend_cause = 0;
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 if (data->alternate_sample_rate_is_set)
255 s->alternate_sample_rate = data->alternate_sample_rate;
257 s->alternate_sample_rate = s->core->alternate_sample_rate;
258 s->default_sample_rate = s->sample_spec.rate;
260 s->outputs = pa_idxset_new(NULL, NULL);
262 s->monitor_of = NULL;
263 s->output_from_master = NULL;
265 s->reference_volume = s->real_volume = data->volume;
266 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
267 s->base_volume = PA_VOLUME_NORM;
268 s->n_volume_steps = PA_VOLUME_NORM+1;
269 s->muted = data->muted;
270 s->refresh_volume = s->refresh_muted = FALSE;
277 /* As a minor optimization we just steal the list instead of
279 s->ports = data->ports;
282 s->active_port = NULL;
283 s->save_port = FALSE;
285 if (data->active_port && s->ports)
286 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
287 s->save_port = data->save_port;
289 if (!s->active_port && s->ports) {
293 PA_HASHMAP_FOREACH(p, s->ports, state)
294 if (!s->active_port || p->priority > s->active_port->priority)
298 s->save_volume = data->save_volume;
299 s->save_muted = data->save_muted;
301 pa_silence_memchunk_get(
302 &core->silence_cache,
308 s->thread_info.rtpoll = NULL;
309 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
310 s->thread_info.soft_volume = s->soft_volume;
311 s->thread_info.soft_muted = s->muted;
312 s->thread_info.state = s->state;
313 s->thread_info.max_rewind = 0;
314 s->thread_info.requested_latency_valid = FALSE;
315 s->thread_info.requested_latency = 0;
316 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
317 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
318 s->thread_info.fixed_latency = flags & PA_SOURCE_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
320 PA_LLIST_HEAD_INIT(pa_source_volume_change, s->thread_info.volume_changes);
321 s->thread_info.volume_changes_tail = NULL;
322 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
323 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
324 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
326 /* FIXME: This should probably be moved to pa_source_put() */
327 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
330 pa_assert_se(pa_idxset_put(s->card->sources, s, NULL) >= 0);
332 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
333 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
336 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
337 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
344 /* Called from main context */
345 static int source_set_state(pa_source *s, pa_source_state_t state) {
347 pa_bool_t suspend_change;
348 pa_source_state_t original_state;
351 pa_assert_ctl_context();
353 if (s->state == state)
356 original_state = s->state;
359 (original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
360 (PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
363 if ((ret = s->set_state(s, state)) < 0)
367 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
370 s->set_state(s, original_state);
377 if (state != PA_SOURCE_UNLINKED) { /* if we enter UNLINKED state pa_source_unlink() will fire the appropriate events */
378 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
379 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
382 if (suspend_change) {
386 /* We're suspending or resuming, tell everyone about it */
388 PA_IDXSET_FOREACH(o, s->outputs, idx)
389 if (s->state == PA_SOURCE_SUSPENDED &&
390 (o->flags & PA_SOURCE_OUTPUT_KILL_ON_SUSPEND))
391 pa_source_output_kill(o);
393 o->suspend(o, state == PA_SOURCE_SUSPENDED);
399 void pa_source_set_get_volume_callback(pa_source *s, pa_source_cb_t cb) {
405 void pa_source_set_set_volume_callback(pa_source *s, pa_source_cb_t cb) {
406 pa_source_flags_t flags;
409 pa_assert(!s->write_volume || cb);
413 /* Save the current flags so we can tell if they've changed */
417 /* The source implementor is responsible for setting decibel volume support */
418 s->flags |= PA_SOURCE_HW_VOLUME_CTRL;
420 s->flags &= ~PA_SOURCE_HW_VOLUME_CTRL;
421 /* See note below in pa_source_put() about volume sharing and decibel volumes */
422 pa_source_enable_decibel_volume(s, !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
425 /* If the flags have changed after init, let any clients know via a change event */
426 if (s->state != PA_SOURCE_INIT && flags != s->flags)
427 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
430 void pa_source_set_write_volume_callback(pa_source *s, pa_source_cb_t cb) {
431 pa_source_flags_t flags;
434 pa_assert(!cb || s->set_volume);
436 s->write_volume = cb;
438 /* Save the current flags so we can tell if they've changed */
442 s->flags |= PA_SOURCE_DEFERRED_VOLUME;
444 s->flags &= ~PA_SOURCE_DEFERRED_VOLUME;
446 /* If the flags have changed after init, let any clients know via a change event */
447 if (s->state != PA_SOURCE_INIT && flags != s->flags)
448 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
451 void pa_source_set_get_mute_callback(pa_source *s, pa_source_cb_t cb) {
457 void pa_source_set_set_mute_callback(pa_source *s, pa_source_cb_t cb) {
458 pa_source_flags_t flags;
464 /* Save the current flags so we can tell if they've changed */
468 s->flags |= PA_SOURCE_HW_MUTE_CTRL;
470 s->flags &= ~PA_SOURCE_HW_MUTE_CTRL;
472 /* If the flags have changed after init, let any clients know via a change event */
473 if (s->state != PA_SOURCE_INIT && flags != s->flags)
474 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
477 static void enable_flat_volume(pa_source *s, pa_bool_t enable) {
478 pa_source_flags_t flags;
482 /* Always follow the overall user preference here */
483 enable = enable && s->core->flat_volumes;
485 /* Save the current flags so we can tell if they've changed */
489 s->flags |= PA_SOURCE_FLAT_VOLUME;
491 s->flags &= ~PA_SOURCE_FLAT_VOLUME;
493 /* If the flags have changed after init, let any clients know via a change event */
494 if (s->state != PA_SOURCE_INIT && flags != s->flags)
495 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
498 void pa_source_enable_decibel_volume(pa_source *s, pa_bool_t enable) {
499 pa_source_flags_t flags;
503 /* Save the current flags so we can tell if they've changed */
507 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
508 enable_flat_volume(s, TRUE);
510 s->flags &= ~PA_SOURCE_DECIBEL_VOLUME;
511 enable_flat_volume(s, FALSE);
514 /* If the flags have changed after init, let any clients know via a change event */
515 if (s->state != PA_SOURCE_INIT && flags != s->flags)
516 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
519 /* Called from main context */
520 void pa_source_put(pa_source *s) {
521 pa_source_assert_ref(s);
522 pa_assert_ctl_context();
524 pa_assert(s->state == PA_SOURCE_INIT);
525 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || s->output_from_master);
527 /* The following fields must be initialized properly when calling _put() */
528 pa_assert(s->asyncmsgq);
529 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
531 /* Generally, flags should be initialized via pa_source_new(). As a
532 * special exception we allow some volume related flags to be set
533 * between _new() and _put() by the callback setter functions above.
535 * Thus we implement a couple safeguards here which ensure the above
536 * setters were used (or at least the implementor made manual changes
537 * in a compatible way).
539 * Note: All of these flags set here can change over the life time
541 pa_assert(!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) || s->set_volume);
542 pa_assert(!(s->flags & PA_SOURCE_DEFERRED_VOLUME) || s->write_volume);
543 pa_assert(!(s->flags & PA_SOURCE_HW_MUTE_CTRL) || s->set_mute);
545 /* XXX: Currently decibel volume is disabled for all sources that use volume
546 * sharing. When the master source supports decibel volume, it would be good
547 * to have the flag also in the filter source, but currently we don't do that
548 * so that the flags of the filter source never change when it's moved from
549 * a master source to another. One solution for this problem would be to
550 * remove user-visible volume altogether from filter sources when volume
551 * sharing is used, but the current approach was easier to implement... */
552 /* We always support decibel volumes in software, otherwise we leave it to
553 * the source implementor to set this flag as needed.
555 * Note: This flag can also change over the life time of the source. */
556 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
557 pa_source_enable_decibel_volume(s, TRUE);
559 /* If the source implementor support DB volumes by itself, we should always
560 * try and enable flat volumes too */
561 if ((s->flags & PA_SOURCE_DECIBEL_VOLUME))
562 enable_flat_volume(s, TRUE);
564 if (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) {
565 pa_source *root_source = pa_source_get_master(s);
567 pa_assert(PA_LIKELY(root_source));
569 s->reference_volume = root_source->reference_volume;
570 pa_cvolume_remap(&s->reference_volume, &root_source->channel_map, &s->channel_map);
572 s->real_volume = root_source->real_volume;
573 pa_cvolume_remap(&s->real_volume, &root_source->channel_map, &s->channel_map);
575 /* We assume that if the sink implementor changed the default
576 * volume he did so in real_volume, because that is the usual
577 * place where he is supposed to place his changes. */
578 s->reference_volume = s->real_volume;
580 s->thread_info.soft_volume = s->soft_volume;
581 s->thread_info.soft_muted = s->muted;
582 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
584 pa_assert((s->flags & PA_SOURCE_HW_VOLUME_CTRL)
585 || (s->base_volume == PA_VOLUME_NORM
586 && ((s->flags & PA_SOURCE_DECIBEL_VOLUME || (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)))));
587 pa_assert(!(s->flags & PA_SOURCE_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
588 pa_assert(!(s->flags & PA_SOURCE_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
590 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
592 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
593 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
596 /* Called from main context */
597 void pa_source_unlink(pa_source *s) {
599 pa_source_output *o, *j = NULL;
602 pa_assert_ctl_context();
604 /* See pa_sink_unlink() for a couple of comments how this function
607 linked = PA_SOURCE_IS_LINKED(s->state);
610 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
612 if (s->state != PA_SOURCE_UNLINKED)
613 pa_namereg_unregister(s->core, s->name);
614 pa_idxset_remove_by_data(s->core->sources, s, NULL);
617 pa_idxset_remove_by_data(s->card->sources, s, NULL);
619 while ((o = pa_idxset_first(s->outputs, NULL))) {
621 pa_source_output_kill(o);
626 source_set_state(s, PA_SOURCE_UNLINKED);
628 s->state = PA_SOURCE_UNLINKED;
633 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
634 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
638 /* Called from main context */
639 static void source_free(pa_object *o) {
640 pa_source_output *so;
641 pa_source *s = PA_SOURCE(o);
644 pa_assert_ctl_context();
645 pa_assert(pa_source_refcnt(s) == 0);
647 if (PA_SOURCE_IS_LINKED(s->state))
650 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
652 pa_idxset_free(s->outputs, NULL, NULL);
654 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
655 pa_source_output_unref(so);
657 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
659 if (s->silence.memblock)
660 pa_memblock_unref(s->silence.memblock);
666 pa_proplist_free(s->proplist);
671 while ((p = pa_hashmap_steal_first(s->ports)))
672 pa_device_port_free(p);
674 pa_hashmap_free(s->ports, NULL, NULL);
680 /* Called from main context, and not while the IO thread is active, please */
681 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
682 pa_source_assert_ref(s);
683 pa_assert_ctl_context();
688 /* Called from main context, and not while the IO thread is active, please */
689 void pa_source_update_flags(pa_source *s, pa_source_flags_t mask, pa_source_flags_t value) {
690 pa_source_assert_ref(s);
691 pa_assert_ctl_context();
696 /* For now, allow only a minimal set of flags to be changed. */
697 pa_assert((mask & ~(PA_SOURCE_DYNAMIC_LATENCY|PA_SOURCE_LATENCY)) == 0);
699 s->flags = (s->flags & ~mask) | (value & mask);
702 /* Called from IO context, or before _put() from main context */
703 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
704 pa_source_assert_ref(s);
705 pa_source_assert_io_context(s);
707 s->thread_info.rtpoll = p;
710 /* Called from main context */
711 int pa_source_update_status(pa_source*s) {
712 pa_source_assert_ref(s);
713 pa_assert_ctl_context();
714 pa_assert(PA_SOURCE_IS_LINKED(s->state));
716 if (s->state == PA_SOURCE_SUSPENDED)
719 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
722 /* Called from main context */
723 int pa_source_suspend(pa_source *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
724 pa_source_assert_ref(s);
725 pa_assert_ctl_context();
726 pa_assert(PA_SOURCE_IS_LINKED(s->state));
727 pa_assert(cause != 0);
729 if (s->monitor_of && cause != PA_SUSPEND_PASSTHROUGH)
730 return -PA_ERR_NOTSUPPORTED;
733 s->suspend_cause |= cause;
735 s->suspend_cause &= ~cause;
737 if ((pa_source_get_state(s) == PA_SOURCE_SUSPENDED) == !!s->suspend_cause)
740 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
742 if (s->suspend_cause)
743 return source_set_state(s, PA_SOURCE_SUSPENDED);
745 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
748 /* Called from main context */
749 int pa_source_sync_suspend(pa_source *s) {
750 pa_sink_state_t state;
752 pa_source_assert_ref(s);
753 pa_assert_ctl_context();
754 pa_assert(PA_SOURCE_IS_LINKED(s->state));
755 pa_assert(s->monitor_of);
757 state = pa_sink_get_state(s->monitor_of);
759 if (state == PA_SINK_SUSPENDED)
760 return source_set_state(s, PA_SOURCE_SUSPENDED);
762 pa_assert(PA_SINK_IS_OPENED(state));
764 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
767 /* Called from main context */
768 pa_queue *pa_source_move_all_start(pa_source *s, pa_queue *q) {
769 pa_source_output *o, *n;
772 pa_source_assert_ref(s);
773 pa_assert_ctl_context();
774 pa_assert(PA_SOURCE_IS_LINKED(s->state));
779 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
780 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
782 pa_source_output_ref(o);
784 if (pa_source_output_start_move(o) >= 0)
787 pa_source_output_unref(o);
793 /* Called from main context */
794 void pa_source_move_all_finish(pa_source *s, pa_queue *q, pa_bool_t save) {
797 pa_source_assert_ref(s);
798 pa_assert_ctl_context();
799 pa_assert(PA_SOURCE_IS_LINKED(s->state));
802 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
803 if (pa_source_output_finish_move(o, s, save) < 0)
804 pa_source_output_fail_move(o);
806 pa_source_output_unref(o);
809 pa_queue_free(q, NULL, NULL);
812 /* Called from main context */
813 void pa_source_move_all_fail(pa_queue *q) {
816 pa_assert_ctl_context();
819 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
820 pa_source_output_fail_move(o);
821 pa_source_output_unref(o);
824 pa_queue_free(q, NULL, NULL);
827 /* Called from IO thread context */
828 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
832 pa_source_assert_ref(s);
833 pa_source_assert_io_context(s);
834 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
839 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
842 pa_log_debug("Processing rewind...");
844 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
845 pa_source_output_assert_ref(o);
846 pa_source_output_process_rewind(o, nbytes);
850 /* Called from IO thread context */
851 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
855 pa_source_assert_ref(s);
856 pa_source_assert_io_context(s);
857 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
860 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
863 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
864 pa_memchunk vchunk = *chunk;
866 pa_memblock_ref(vchunk.memblock);
867 pa_memchunk_make_writable(&vchunk, 0);
869 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
870 pa_silence_memchunk(&vchunk, &s->sample_spec);
872 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
874 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
875 pa_source_output_assert_ref(o);
877 if (!o->thread_info.direct_on_input)
878 pa_source_output_push(o, &vchunk);
881 pa_memblock_unref(vchunk.memblock);
884 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
885 pa_source_output_assert_ref(o);
887 if (!o->thread_info.direct_on_input)
888 pa_source_output_push(o, chunk);
893 /* Called from IO thread context */
894 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
895 pa_source_assert_ref(s);
896 pa_source_assert_io_context(s);
897 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
898 pa_source_output_assert_ref(o);
899 pa_assert(o->thread_info.direct_on_input);
902 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
905 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
906 pa_memchunk vchunk = *chunk;
908 pa_memblock_ref(vchunk.memblock);
909 pa_memchunk_make_writable(&vchunk, 0);
911 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
912 pa_silence_memchunk(&vchunk, &s->sample_spec);
914 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
916 pa_source_output_push(o, &vchunk);
918 pa_memblock_unref(vchunk.memblock);
920 pa_source_output_push(o, chunk);
923 /* Called from main thread */
924 pa_bool_t pa_source_update_rate(pa_source *s, uint32_t rate)
927 if (s->update_rate) {
928 uint32_t desired_rate = rate;
929 uint32_t default_rate = s->default_sample_rate;
930 uint32_t alternate_rate = s->alternate_sample_rate;
931 pa_bool_t use_alternate = FALSE;
933 if (PA_SOURCE_IS_RUNNING(s->state)) {
934 pa_log_info("Cannot update rate, SOURCE_IS_RUNNING, will keep using %u kHz",
935 s->sample_spec.rate);
936 return FALSE; /* cannot reconfigure a RUNNING source without glitches */
939 if (PA_UNLIKELY (desired_rate < 8000 ||
940 desired_rate > PA_RATE_MAX))
943 pa_assert(default_rate % 4000 || default_rate % 11025);
944 pa_assert(alternate_rate % 4000 || alternate_rate % 11025);
946 if (default_rate % 4000) {
947 /* default is a 11025 multiple */
948 if ((alternate_rate % 4000 == 0) && (desired_rate % 4000 == 0))
951 /* default is 4000 multiple */
952 if ((alternate_rate % 11025 == 0) && (desired_rate % 11025 == 0))
957 desired_rate = alternate_rate;
959 desired_rate = default_rate;
961 if (s->update_rate(s, desired_rate) == TRUE) {
962 pa_log_info("Changed sampling rate successfully ");
969 /* Called from main thread */
970 pa_usec_t pa_source_get_latency(pa_source *s) {
973 pa_source_assert_ref(s);
974 pa_assert_ctl_context();
975 pa_assert(PA_SOURCE_IS_LINKED(s->state));
977 if (s->state == PA_SOURCE_SUSPENDED)
980 if (!(s->flags & PA_SOURCE_LATENCY))
983 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
988 /* Called from IO thread */
989 pa_usec_t pa_source_get_latency_within_thread(pa_source *s) {
993 pa_source_assert_ref(s);
994 pa_source_assert_io_context(s);
995 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
997 /* The returned value is supposed to be in the time domain of the sound card! */
999 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
1002 if (!(s->flags & PA_SOURCE_LATENCY))
1005 o = PA_MSGOBJECT(s);
1007 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1009 if (o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1015 /* Called from the main thread (and also from the IO thread while the main
1016 * thread is waiting).
1018 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
1019 * set. Instead, flat volume mode is detected by checking whether the root source
1020 * has the flag set. */
1021 pa_bool_t pa_source_flat_volume_enabled(pa_source *s) {
1022 pa_source_assert_ref(s);
1024 s = pa_source_get_master(s);
1027 return (s->flags & PA_SOURCE_FLAT_VOLUME);
1032 /* Called from the main thread (and also from the IO thread while the main
1033 * thread is waiting). */
1034 pa_source *pa_source_get_master(pa_source *s) {
1035 pa_source_assert_ref(s);
1037 while (s && (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1038 if (PA_UNLIKELY(!s->output_from_master))
1041 s = s->output_from_master->source;
1047 /* Called from main context */
1048 pa_bool_t pa_source_is_passthrough(pa_source *s) {
1050 pa_source_assert_ref(s);
1052 /* NB Currently only monitor sources support passthrough mode */
1053 return (s->monitor_of && pa_sink_is_passthrough(s->monitor_of));
1056 /* Called from main context */
1057 void pa_source_enter_passthrough(pa_source *s) {
1060 /* set the volume to NORM */
1061 s->saved_volume = *pa_source_get_volume(s, TRUE);
1062 s->saved_save_volume = s->save_volume;
1064 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1065 pa_source_set_volume(s, &volume, TRUE, FALSE);
1068 /* Called from main context */
1069 void pa_source_leave_passthrough(pa_source *s) {
1070 /* Restore source volume to what it was before we entered passthrough mode */
1071 pa_source_set_volume(s, &s->saved_volume, TRUE, s->saved_save_volume);
1073 pa_cvolume_init(&s->saved_volume);
1074 s->saved_save_volume = FALSE;
1077 /* Called from main context. */
1078 static void compute_reference_ratio(pa_source_output *o) {
1080 pa_cvolume remapped;
1083 pa_assert(pa_source_flat_volume_enabled(o->source));
1086 * Calculates the reference ratio from the source's reference
1087 * volume. This basically calculates:
1089 * o->reference_ratio = o->volume / o->source->reference_volume
1092 remapped = o->source->reference_volume;
1093 pa_cvolume_remap(&remapped, &o->source->channel_map, &o->channel_map);
1095 o->reference_ratio.channels = o->sample_spec.channels;
1097 for (c = 0; c < o->sample_spec.channels; c++) {
1099 /* We don't update when the source volume is 0 anyway */
1100 if (remapped.values[c] <= PA_VOLUME_MUTED)
1103 /* Don't update the reference ratio unless necessary */
1104 if (pa_sw_volume_multiply(
1105 o->reference_ratio.values[c],
1106 remapped.values[c]) == o->volume.values[c])
1109 o->reference_ratio.values[c] = pa_sw_volume_divide(
1110 o->volume.values[c],
1111 remapped.values[c]);
1115 /* Called from main context. Only called for the root source in volume sharing
1116 * cases, except for internal recursive calls. */
1117 static void compute_reference_ratios(pa_source *s) {
1119 pa_source_output *o;
1121 pa_source_assert_ref(s);
1122 pa_assert_ctl_context();
1123 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1124 pa_assert(pa_source_flat_volume_enabled(s));
1126 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1127 compute_reference_ratio(o);
1129 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1130 compute_reference_ratios(o->destination_source);
1134 /* Called from main context. Only called for the root source in volume sharing
1135 * cases, except for internal recursive calls. */
1136 static void compute_real_ratios(pa_source *s) {
1137 pa_source_output *o;
1140 pa_source_assert_ref(s);
1141 pa_assert_ctl_context();
1142 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1143 pa_assert(pa_source_flat_volume_enabled(s));
1145 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1147 pa_cvolume remapped;
1149 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1150 /* The origin source uses volume sharing, so this input's real ratio
1151 * is handled as a special case - the real ratio must be 0 dB, and
1152 * as a result i->soft_volume must equal i->volume_factor. */
1153 pa_cvolume_reset(&o->real_ratio, o->real_ratio.channels);
1154 o->soft_volume = o->volume_factor;
1156 compute_real_ratios(o->destination_source);
1162 * This basically calculates:
1164 * i->real_ratio := i->volume / s->real_volume
1165 * i->soft_volume := i->real_ratio * i->volume_factor
1168 remapped = s->real_volume;
1169 pa_cvolume_remap(&remapped, &s->channel_map, &o->channel_map);
1171 o->real_ratio.channels = o->sample_spec.channels;
1172 o->soft_volume.channels = o->sample_spec.channels;
1174 for (c = 0; c < o->sample_spec.channels; c++) {
1176 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1177 /* We leave o->real_ratio untouched */
1178 o->soft_volume.values[c] = PA_VOLUME_MUTED;
1182 /* Don't lose accuracy unless necessary */
1183 if (pa_sw_volume_multiply(
1184 o->real_ratio.values[c],
1185 remapped.values[c]) != o->volume.values[c])
1187 o->real_ratio.values[c] = pa_sw_volume_divide(
1188 o->volume.values[c],
1189 remapped.values[c]);
1191 o->soft_volume.values[c] = pa_sw_volume_multiply(
1192 o->real_ratio.values[c],
1193 o->volume_factor.values[c]);
1196 /* We don't copy the soft_volume to the thread_info data
1197 * here. That must be done by the caller */
1201 static pa_cvolume *cvolume_remap_minimal_impact(
1203 const pa_cvolume *template,
1204 const pa_channel_map *from,
1205 const pa_channel_map *to) {
1210 pa_assert(template);
1213 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1214 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1216 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1217 * mapping from source output to source volumes:
1219 * If template is a possible remapping from v it is used instead
1220 * of remapping anew.
1222 * If the channel maps don't match we set an all-channel volume on
1223 * the source to ensure that changing a volume on one stream has no
1224 * effect that cannot be compensated for in another stream that
1225 * does not have the same channel map as the source. */
1227 if (pa_channel_map_equal(from, to))
1231 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1236 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1240 /* Called from main thread. Only called for the root source in volume sharing
1241 * cases, except for internal recursive calls. */
1242 static void get_maximum_output_volume(pa_source *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1243 pa_source_output *o;
1246 pa_source_assert_ref(s);
1247 pa_assert(max_volume);
1248 pa_assert(channel_map);
1249 pa_assert(pa_source_flat_volume_enabled(s));
1251 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1252 pa_cvolume remapped;
1254 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1255 get_maximum_output_volume(o->destination_source, max_volume, channel_map);
1257 /* Ignore this output. The origin source uses volume sharing, so this
1258 * output's volume will be set to be equal to the root source's real
1259 * volume. Obviously this output's current volume must not then
1260 * affect what the root source's real volume will be. */
1264 remapped = o->volume;
1265 cvolume_remap_minimal_impact(&remapped, max_volume, &o->channel_map, channel_map);
1266 pa_cvolume_merge(max_volume, max_volume, &remapped);
1270 /* Called from main thread. Only called for the root source in volume sharing
1271 * cases, except for internal recursive calls. */
1272 static pa_bool_t has_outputs(pa_source *s) {
1273 pa_source_output *o;
1276 pa_source_assert_ref(s);
1278 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1279 if (!o->destination_source || !(o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || has_outputs(o->destination_source))
1286 /* Called from main thread. Only called for the root source in volume sharing
1287 * cases, except for internal recursive calls. */
1288 static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1289 pa_source_output *o;
1292 pa_source_assert_ref(s);
1293 pa_assert(new_volume);
1294 pa_assert(channel_map);
1296 s->real_volume = *new_volume;
1297 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1299 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1300 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1301 if (pa_source_flat_volume_enabled(s)) {
1302 pa_cvolume old_volume = o->volume;
1304 /* Follow the root source's real volume. */
1305 o->volume = *new_volume;
1306 pa_cvolume_remap(&o->volume, channel_map, &o->channel_map);
1307 compute_reference_ratio(o);
1309 /* The volume changed, let's tell people so */
1310 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1311 if (o->volume_changed)
1312 o->volume_changed(o);
1314 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1318 update_real_volume(o->destination_source, new_volume, channel_map);
1323 /* Called from main thread. Only called for the root source in shared volume
1325 static void compute_real_volume(pa_source *s) {
1326 pa_source_assert_ref(s);
1327 pa_assert_ctl_context();
1328 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1329 pa_assert(pa_source_flat_volume_enabled(s));
1330 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1332 /* This determines the maximum volume of all streams and sets
1333 * s->real_volume accordingly. */
1335 if (!has_outputs(s)) {
1336 /* In the special case that we have no source outputs we leave the
1337 * volume unmodified. */
1338 update_real_volume(s, &s->reference_volume, &s->channel_map);
1342 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1344 /* First let's determine the new maximum volume of all outputs
1345 * connected to this source */
1346 get_maximum_output_volume(s, &s->real_volume, &s->channel_map);
1347 update_real_volume(s, &s->real_volume, &s->channel_map);
1349 /* Then, let's update the real ratios/soft volumes of all outputs
1350 * connected to this source */
1351 compute_real_ratios(s);
1354 /* Called from main thread. Only called for the root source in shared volume
1355 * cases, except for internal recursive calls. */
1356 static void propagate_reference_volume(pa_source *s) {
1357 pa_source_output *o;
1360 pa_source_assert_ref(s);
1361 pa_assert_ctl_context();
1362 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1363 pa_assert(pa_source_flat_volume_enabled(s));
1365 /* This is called whenever the source volume changes that is not
1366 * caused by a source output volume change. We need to fix up the
1367 * source output volumes accordingly */
1369 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1370 pa_cvolume old_volume;
1372 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1373 propagate_reference_volume(o->destination_source);
1375 /* Since the origin source uses volume sharing, this output's volume
1376 * needs to be updated to match the root source's real volume, but
1377 * that will be done later in update_shared_real_volume(). */
1381 old_volume = o->volume;
1383 /* This basically calculates:
1385 * o->volume := o->reference_volume * o->reference_ratio */
1387 o->volume = s->reference_volume;
1388 pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
1389 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1391 /* The volume changed, let's tell people so */
1392 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1394 if (o->volume_changed)
1395 o->volume_changed(o);
1397 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1402 /* Called from main thread. Only called for the root source in volume sharing
1403 * cases, except for internal recursive calls. The return value indicates
1404 * whether any reference volume actually changed. */
1405 static pa_bool_t update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1407 pa_bool_t reference_volume_changed;
1408 pa_source_output *o;
1411 pa_source_assert_ref(s);
1412 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1414 pa_assert(channel_map);
1415 pa_assert(pa_cvolume_valid(v));
1418 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1420 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1421 s->reference_volume = volume;
1423 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1425 if (reference_volume_changed)
1426 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1427 else if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1428 /* If the root source's volume doesn't change, then there can't be any
1429 * changes in the other source in the source tree either.
1431 * It's probably theoretically possible that even if the root source's
1432 * volume changes slightly, some filter source doesn't change its volume
1433 * due to rounding errors. If that happens, we still want to propagate
1434 * the changed root source volume to the sources connected to the
1435 * intermediate source that didn't change its volume. This theoretical
1436 * possibility is the reason why we have that !(s->flags &
1437 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1438 * notice even if we returned here FALSE always if
1439 * reference_volume_changed is FALSE. */
1442 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1443 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1444 update_reference_volume(o->destination_source, v, channel_map, FALSE);
1450 /* Called from main thread */
1451 void pa_source_set_volume(
1453 const pa_cvolume *volume,
1457 pa_cvolume new_reference_volume;
1458 pa_source *root_source;
1460 pa_source_assert_ref(s);
1461 pa_assert_ctl_context();
1462 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1463 pa_assert(!volume || pa_cvolume_valid(volume));
1464 pa_assert(volume || pa_source_flat_volume_enabled(s));
1465 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1467 /* make sure we don't change the volume in PASSTHROUGH mode ...
1468 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1469 if (pa_source_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1470 pa_log_warn("Cannot change volume, Source is monitor of a PASSTHROUGH sink");
1474 /* In case of volume sharing, the volume is set for the root source first,
1475 * from which it's then propagated to the sharing sources. */
1476 root_source = pa_source_get_master(s);
1478 if (PA_UNLIKELY(!root_source))
1481 /* As a special exception we accept mono volumes on all sources --
1482 * even on those with more complex channel maps */
1485 if (pa_cvolume_compatible(volume, &s->sample_spec))
1486 new_reference_volume = *volume;
1488 new_reference_volume = s->reference_volume;
1489 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1492 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1495 /* If volume is NULL we synchronize the source's real and reference
1496 * volumes with the stream volumes. If it is not NULL we update
1497 * the reference_volume with it. */
1500 if (update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save)) {
1501 if (pa_source_flat_volume_enabled(root_source)) {
1502 /* OK, propagate this volume change back to the outputs */
1503 propagate_reference_volume(root_source);
1505 /* And now recalculate the real volume */
1506 compute_real_volume(root_source);
1508 update_real_volume(root_source, &root_source->reference_volume, &root_source->channel_map);
1512 pa_assert(pa_source_flat_volume_enabled(root_source));
1514 /* Ok, let's determine the new real volume */
1515 compute_real_volume(root_source);
1517 /* Let's 'push' the reference volume if necessary */
1518 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_source->real_volume);
1519 /* If the source and it's root don't have the same number of channels, we need to remap */
1520 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1521 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1522 update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save);
1524 /* Now that the reference volume is updated, we can update the streams'
1525 * reference ratios. */
1526 compute_reference_ratios(root_source);
1529 if (root_source->set_volume) {
1530 /* If we have a function set_volume(), then we do not apply a
1531 * soft volume by default. However, set_volume() is free to
1532 * apply one to root_source->soft_volume */
1534 pa_cvolume_reset(&root_source->soft_volume, root_source->sample_spec.channels);
1535 if (!(root_source->flags & PA_SOURCE_DEFERRED_VOLUME))
1536 root_source->set_volume(root_source);
1539 /* If we have no function set_volume(), then the soft volume
1540 * becomes the real volume */
1541 root_source->soft_volume = root_source->real_volume;
1543 /* This tells the source that soft volume and/or real volume changed */
1545 pa_assert_se(pa_asyncmsgq_send(root_source->asyncmsgq, PA_MSGOBJECT(root_source), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1548 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1549 * Only to be called by source implementor */
1550 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
1552 pa_source_assert_ref(s);
1553 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1555 if (s->flags & PA_SOURCE_DEFERRED_VOLUME)
1556 pa_source_assert_io_context(s);
1558 pa_assert_ctl_context();
1561 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
1563 s->soft_volume = *volume;
1565 if (PA_SOURCE_IS_LINKED(s->state) && !(s->flags & PA_SOURCE_DEFERRED_VOLUME))
1566 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
1568 s->thread_info.soft_volume = s->soft_volume;
1571 /* Called from the main thread. Only called for the root source in volume sharing
1572 * cases, except for internal recursive calls. */
1573 static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volume) {
1574 pa_source_output *o;
1577 pa_source_assert_ref(s);
1578 pa_assert(old_real_volume);
1579 pa_assert_ctl_context();
1580 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1582 /* This is called when the hardware's real volume changes due to
1583 * some external event. We copy the real volume into our
1584 * reference volume and then rebuild the stream volumes based on
1585 * i->real_ratio which should stay fixed. */
1587 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1588 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
1591 /* 1. Make the real volume the reference volume */
1592 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
1595 if (pa_source_flat_volume_enabled(s)) {
1597 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1598 pa_cvolume old_volume = o->volume;
1600 /* 2. Since the source's reference and real volumes are equal
1601 * now our ratios should be too. */
1602 o->reference_ratio = o->real_ratio;
1604 /* 3. Recalculate the new stream reference volume based on the
1605 * reference ratio and the sink's reference volume.
1607 * This basically calculates:
1609 * o->volume = s->reference_volume * o->reference_ratio
1611 * This is identical to propagate_reference_volume() */
1612 o->volume = s->reference_volume;
1613 pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
1614 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1616 /* Notify if something changed */
1617 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1619 if (o->volume_changed)
1620 o->volume_changed(o);
1622 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1625 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1626 propagate_real_volume(o->destination_source, old_real_volume);
1630 /* Something got changed in the hardware. It probably makes sense
1631 * to save changed hw settings given that hw volume changes not
1632 * triggered by PA are almost certainly done by the user. */
1633 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1634 s->save_volume = TRUE;
1637 /* Called from io thread */
1638 void pa_source_update_volume_and_mute(pa_source *s) {
1640 pa_source_assert_io_context(s);
1642 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
1645 /* Called from main thread */
1646 const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
1647 pa_source_assert_ref(s);
1648 pa_assert_ctl_context();
1649 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1651 if (s->refresh_volume || force_refresh) {
1652 struct pa_cvolume old_real_volume;
1654 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1656 old_real_volume = s->real_volume;
1658 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume)
1661 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
1663 update_real_volume(s, &s->real_volume, &s->channel_map);
1664 propagate_real_volume(s, &old_real_volume);
1667 return &s->reference_volume;
1670 /* Called from main thread. In volume sharing cases, only the root source may
1672 void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_real_volume) {
1673 pa_cvolume old_real_volume;
1675 pa_source_assert_ref(s);
1676 pa_assert_ctl_context();
1677 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1678 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1680 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1682 old_real_volume = s->real_volume;
1683 update_real_volume(s, new_real_volume, &s->channel_map);
1684 propagate_real_volume(s, &old_real_volume);
1687 /* Called from main thread */
1688 void pa_source_set_mute(pa_source *s, pa_bool_t mute, pa_bool_t save) {
1689 pa_bool_t old_muted;
1691 pa_source_assert_ref(s);
1692 pa_assert_ctl_context();
1693 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1695 old_muted = s->muted;
1697 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
1699 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->set_mute)
1702 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1704 if (old_muted != s->muted)
1705 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1708 /* Called from main thread */
1709 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
1711 pa_source_assert_ref(s);
1712 pa_assert_ctl_context();
1713 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1715 if (s->refresh_muted || force_refresh) {
1716 pa_bool_t old_muted = s->muted;
1718 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_mute)
1721 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
1723 if (old_muted != s->muted) {
1724 s->save_muted = TRUE;
1726 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1728 /* Make sure the soft mute status stays in sync */
1729 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1736 /* Called from main thread */
1737 void pa_source_mute_changed(pa_source *s, pa_bool_t new_muted) {
1738 pa_source_assert_ref(s);
1739 pa_assert_ctl_context();
1740 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1742 /* The source implementor may call this if the mute state changed to make sure everyone is notified */
1744 if (s->muted == new_muted)
1747 s->muted = new_muted;
1748 s->save_muted = TRUE;
1750 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1753 /* Called from main thread */
1754 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
1755 pa_source_assert_ref(s);
1756 pa_assert_ctl_context();
1759 pa_proplist_update(s->proplist, mode, p);
1761 if (PA_SOURCE_IS_LINKED(s->state)) {
1762 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1763 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1769 /* Called from main thread */
1770 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1771 void pa_source_set_description(pa_source *s, const char *description) {
1773 pa_source_assert_ref(s);
1774 pa_assert_ctl_context();
1776 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
1779 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1781 if (old && description && pa_streq(old, description))
1785 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
1787 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1789 if (PA_SOURCE_IS_LINKED(s->state)) {
1790 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1791 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1795 /* Called from main thread */
1796 unsigned pa_source_linked_by(pa_source *s) {
1797 pa_source_assert_ref(s);
1798 pa_assert_ctl_context();
1799 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1801 return pa_idxset_size(s->outputs);
1804 /* Called from main thread */
1805 unsigned pa_source_used_by(pa_source *s) {
1808 pa_source_assert_ref(s);
1809 pa_assert_ctl_context();
1810 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1812 ret = pa_idxset_size(s->outputs);
1813 pa_assert(ret >= s->n_corked);
1815 return ret - s->n_corked;
1818 /* Called from main thread */
1819 unsigned pa_source_check_suspend(pa_source *s) {
1821 pa_source_output *o;
1824 pa_source_assert_ref(s);
1825 pa_assert_ctl_context();
1827 if (!PA_SOURCE_IS_LINKED(s->state))
1832 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1833 pa_source_output_state_t st;
1835 st = pa_source_output_get_state(o);
1837 /* We do not assert here. It is perfectly valid for a source output to
1838 * be in the INIT state (i.e. created, marked done but not yet put)
1839 * and we should not care if it's unlinked as it won't contribute
1840 * towards our busy status.
1842 if (!PA_SOURCE_OUTPUT_IS_LINKED(st))
1845 if (st == PA_SOURCE_OUTPUT_CORKED)
1848 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
1857 /* Called from the IO thread */
1858 static void sync_output_volumes_within_thread(pa_source *s) {
1859 pa_source_output *o;
1862 pa_source_assert_ref(s);
1863 pa_source_assert_io_context(s);
1865 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
1866 if (pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume))
1869 o->thread_info.soft_volume = o->soft_volume;
1870 //pa_source_output_request_rewind(o, 0, TRUE, FALSE, FALSE);
1874 /* Called from the IO thread. Only called for the root source in volume sharing
1875 * cases, except for internal recursive calls. */
1876 static void set_shared_volume_within_thread(pa_source *s) {
1877 pa_source_output *o;
1880 pa_source_assert_ref(s);
1882 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
1884 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
1885 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1886 set_shared_volume_within_thread(o->destination_source);
1890 /* Called from IO thread, except when it is not */
1891 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1892 pa_source *s = PA_SOURCE(object);
1893 pa_source_assert_ref(s);
1895 switch ((pa_source_message_t) code) {
1897 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
1898 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
1900 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
1902 if (o->direct_on_input) {
1903 o->thread_info.direct_on_input = o->direct_on_input;
1904 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
1907 pa_assert(!o->thread_info.attached);
1908 o->thread_info.attached = TRUE;
1913 pa_source_output_set_state_within_thread(o, o->state);
1915 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
1916 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
1918 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
1920 /* We don't just invalidate the requested latency here,
1921 * because if we are in a move we might need to fix up the
1922 * requested latency. */
1923 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
1925 /* In flat volume mode we need to update the volume as
1927 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
1930 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
1931 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
1933 pa_source_output_set_state_within_thread(o, o->state);
1938 pa_assert(o->thread_info.attached);
1939 o->thread_info.attached = FALSE;
1941 if (o->thread_info.direct_on_input) {
1942 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
1943 o->thread_info.direct_on_input = NULL;
1946 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
1947 pa_source_output_unref(o);
1949 pa_source_invalidate_requested_latency(s, TRUE);
1951 /* In flat volume mode we need to update the volume as
1953 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
1956 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME: {
1957 pa_source *root_source = pa_source_get_master(s);
1959 if (PA_LIKELY(root_source))
1960 set_shared_volume_within_thread(root_source);
1965 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED:
1967 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
1969 pa_source_volume_change_push(s);
1971 /* Fall through ... */
1973 case PA_SOURCE_MESSAGE_SET_VOLUME:
1975 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
1976 s->thread_info.soft_volume = s->soft_volume;
1979 /* Fall through ... */
1981 case PA_SOURCE_MESSAGE_SYNC_VOLUMES:
1982 sync_output_volumes_within_thread(s);
1985 case PA_SOURCE_MESSAGE_GET_VOLUME:
1987 if ((s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume) {
1989 pa_source_volume_change_flush(s);
1990 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
1993 /* In case source implementor reset SW volume. */
1994 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
1995 s->thread_info.soft_volume = s->soft_volume;
2000 case PA_SOURCE_MESSAGE_SET_MUTE:
2002 if (s->thread_info.soft_muted != s->muted) {
2003 s->thread_info.soft_muted = s->muted;
2006 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->set_mute)
2011 case PA_SOURCE_MESSAGE_GET_MUTE:
2013 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->get_mute)
2018 case PA_SOURCE_MESSAGE_SET_STATE: {
2020 pa_bool_t suspend_change =
2021 (s->thread_info.state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2022 (PA_SOURCE_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SOURCE_SUSPENDED);
2024 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2026 if (suspend_change) {
2027 pa_source_output *o;
2030 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2031 if (o->suspend_within_thread)
2032 o->suspend_within_thread(o, s->thread_info.state == PA_SOURCE_SUSPENDED);
2038 case PA_SOURCE_MESSAGE_DETACH:
2040 /* Detach all streams */
2041 pa_source_detach_within_thread(s);
2044 case PA_SOURCE_MESSAGE_ATTACH:
2046 /* Reattach all streams */
2047 pa_source_attach_within_thread(s);
2050 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
2052 pa_usec_t *usec = userdata;
2053 *usec = pa_source_get_requested_latency_within_thread(s);
2055 /* Yes, that's right, the IO thread will see -1 when no
2056 * explicit requested latency is configured, the main
2057 * thread will see max_latency */
2058 if (*usec == (pa_usec_t) -1)
2059 *usec = s->thread_info.max_latency;
2064 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
2065 pa_usec_t *r = userdata;
2067 pa_source_set_latency_range_within_thread(s, r[0], r[1]);
2072 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
2073 pa_usec_t *r = userdata;
2075 r[0] = s->thread_info.min_latency;
2076 r[1] = s->thread_info.max_latency;
2081 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY:
2083 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2086 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY:
2088 pa_source_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2091 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
2093 *((size_t*) userdata) = s->thread_info.max_rewind;
2096 case PA_SOURCE_MESSAGE_SET_MAX_REWIND:
2098 pa_source_set_max_rewind_within_thread(s, (size_t) offset);
2101 case PA_SOURCE_MESSAGE_GET_LATENCY:
2103 if (s->monitor_of) {
2104 *((pa_usec_t*) userdata) = 0;
2108 /* Implementors need to overwrite this implementation! */
2111 case PA_SOURCE_MESSAGE_SET_PORT:
2113 pa_assert(userdata);
2115 struct source_message_set_port *msg_data = userdata;
2116 msg_data->ret = s->set_port(s, msg_data->port);
2120 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2121 /* This message is sent from IO-thread and handled in main thread. */
2122 pa_assert_ctl_context();
2124 /* Make sure we're not messing with main thread when no longer linked */
2125 if (!PA_SOURCE_IS_LINKED(s->state))
2128 pa_source_get_volume(s, TRUE);
2129 pa_source_get_mute(s, TRUE);
2132 case PA_SOURCE_MESSAGE_MAX:
2139 /* Called from main thread */
2140 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2145 pa_core_assert_ref(c);
2146 pa_assert_ctl_context();
2147 pa_assert(cause != 0);
2149 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx))) {
2152 if (source->monitor_of)
2155 if ((r = pa_source_suspend(source, suspend, cause)) < 0)
2162 /* Called from main thread */
2163 void pa_source_detach(pa_source *s) {
2164 pa_source_assert_ref(s);
2165 pa_assert_ctl_context();
2166 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2168 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2171 /* Called from main thread */
2172 void pa_source_attach(pa_source *s) {
2173 pa_source_assert_ref(s);
2174 pa_assert_ctl_context();
2175 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2177 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2180 /* Called from IO thread */
2181 void pa_source_detach_within_thread(pa_source *s) {
2182 pa_source_output *o;
2185 pa_source_assert_ref(s);
2186 pa_source_assert_io_context(s);
2187 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2189 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2194 /* Called from IO thread */
2195 void pa_source_attach_within_thread(pa_source *s) {
2196 pa_source_output *o;
2199 pa_source_assert_ref(s);
2200 pa_source_assert_io_context(s);
2201 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2203 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2208 /* Called from IO thread */
2209 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
2210 pa_usec_t result = (pa_usec_t) -1;
2211 pa_source_output *o;
2214 pa_source_assert_ref(s);
2215 pa_source_assert_io_context(s);
2217 if (!(s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2218 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2220 if (s->thread_info.requested_latency_valid)
2221 return s->thread_info.requested_latency;
2223 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2224 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
2225 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
2226 result = o->thread_info.requested_source_latency;
2228 if (result != (pa_usec_t) -1)
2229 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2231 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2232 /* Only cache this if we are fully set up */
2233 s->thread_info.requested_latency = result;
2234 s->thread_info.requested_latency_valid = TRUE;
2240 /* Called from main thread */
2241 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
2244 pa_source_assert_ref(s);
2245 pa_assert_ctl_context();
2246 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2248 if (s->state == PA_SOURCE_SUSPENDED)
2251 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2256 /* Called from IO thread */
2257 void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind) {
2258 pa_source_output *o;
2261 pa_source_assert_ref(s);
2262 pa_source_assert_io_context(s);
2264 if (max_rewind == s->thread_info.max_rewind)
2267 s->thread_info.max_rewind = max_rewind;
2269 if (PA_SOURCE_IS_LINKED(s->thread_info.state))
2270 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2271 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2274 /* Called from main thread */
2275 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
2276 pa_source_assert_ref(s);
2277 pa_assert_ctl_context();
2279 if (PA_SOURCE_IS_LINKED(s->state))
2280 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
2282 pa_source_set_max_rewind_within_thread(s, max_rewind);
2285 /* Called from IO thread */
2286 void pa_source_invalidate_requested_latency(pa_source *s, pa_bool_t dynamic) {
2287 pa_source_output *o;
2290 pa_source_assert_ref(s);
2291 pa_source_assert_io_context(s);
2293 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2294 s->thread_info.requested_latency_valid = FALSE;
2298 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2300 if (s->update_requested_latency)
2301 s->update_requested_latency(s);
2303 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2304 if (o->update_source_requested_latency)
2305 o->update_source_requested_latency(o);
2309 pa_sink_invalidate_requested_latency(s->monitor_of, dynamic);
2312 /* Called from main thread */
2313 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2314 pa_source_assert_ref(s);
2315 pa_assert_ctl_context();
2317 /* min_latency == 0: no limit
2318 * min_latency anything else: specified limit
2320 * Similar for max_latency */
2322 if (min_latency < ABSOLUTE_MIN_LATENCY)
2323 min_latency = ABSOLUTE_MIN_LATENCY;
2325 if (max_latency <= 0 ||
2326 max_latency > ABSOLUTE_MAX_LATENCY)
2327 max_latency = ABSOLUTE_MAX_LATENCY;
2329 pa_assert(min_latency <= max_latency);
2331 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2332 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2333 max_latency == ABSOLUTE_MAX_LATENCY) ||
2334 (s->flags & PA_SOURCE_DYNAMIC_LATENCY));
2336 if (PA_SOURCE_IS_LINKED(s->state)) {
2342 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
2344 pa_source_set_latency_range_within_thread(s, min_latency, max_latency);
2347 /* Called from main thread */
2348 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
2349 pa_source_assert_ref(s);
2350 pa_assert_ctl_context();
2351 pa_assert(min_latency);
2352 pa_assert(max_latency);
2354 if (PA_SOURCE_IS_LINKED(s->state)) {
2355 pa_usec_t r[2] = { 0, 0 };
2357 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
2359 *min_latency = r[0];
2360 *max_latency = r[1];
2362 *min_latency = s->thread_info.min_latency;
2363 *max_latency = s->thread_info.max_latency;
2367 /* Called from IO thread, and from main thread before pa_source_put() is called */
2368 void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2369 pa_source_assert_ref(s);
2370 pa_source_assert_io_context(s);
2372 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
2373 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
2374 pa_assert(min_latency <= max_latency);
2376 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2377 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2378 max_latency == ABSOLUTE_MAX_LATENCY) ||
2379 (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ||
2382 if (s->thread_info.min_latency == min_latency &&
2383 s->thread_info.max_latency == max_latency)
2386 s->thread_info.min_latency = min_latency;
2387 s->thread_info.max_latency = max_latency;
2389 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2390 pa_source_output *o;
2393 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2394 if (o->update_source_latency_range)
2395 o->update_source_latency_range(o);
2398 pa_source_invalidate_requested_latency(s, FALSE);
2401 /* Called from main thread, before the source is put */
2402 void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency) {
2403 pa_source_assert_ref(s);
2404 pa_assert_ctl_context();
2406 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2407 pa_assert(latency == 0);
2411 if (latency < ABSOLUTE_MIN_LATENCY)
2412 latency = ABSOLUTE_MIN_LATENCY;
2414 if (latency > ABSOLUTE_MAX_LATENCY)
2415 latency = ABSOLUTE_MAX_LATENCY;
2417 if (PA_SOURCE_IS_LINKED(s->state))
2418 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
2420 s->thread_info.fixed_latency = latency;
2423 /* Called from main thread */
2424 pa_usec_t pa_source_get_fixed_latency(pa_source *s) {
2427 pa_source_assert_ref(s);
2428 pa_assert_ctl_context();
2430 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY)
2433 if (PA_SOURCE_IS_LINKED(s->state))
2434 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
2436 latency = s->thread_info.fixed_latency;
2441 /* Called from IO thread */
2442 void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency) {
2443 pa_source_assert_ref(s);
2444 pa_source_assert_io_context(s);
2446 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2447 pa_assert(latency == 0);
2451 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
2452 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
2454 if (s->thread_info.fixed_latency == latency)
2457 s->thread_info.fixed_latency = latency;
2459 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2460 pa_source_output *o;
2463 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2464 if (o->update_source_fixed_latency)
2465 o->update_source_fixed_latency(o);
2468 pa_source_invalidate_requested_latency(s, FALSE);
2471 /* Called from main thread */
2472 size_t pa_source_get_max_rewind(pa_source *s) {
2474 pa_assert_ctl_context();
2475 pa_source_assert_ref(s);
2477 if (!PA_SOURCE_IS_LINKED(s->state))
2478 return s->thread_info.max_rewind;
2480 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
2485 /* Called from main context */
2486 int pa_source_set_port(pa_source *s, const char *name, pa_bool_t save) {
2487 pa_device_port *port;
2490 pa_source_assert_ref(s);
2491 pa_assert_ctl_context();
2494 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s->index, s->name);
2495 return -PA_ERR_NOTIMPLEMENTED;
2499 return -PA_ERR_NOENTITY;
2501 if (!(port = pa_hashmap_get(s->ports, name)))
2502 return -PA_ERR_NOENTITY;
2504 if (s->active_port == port) {
2505 s->save_port = s->save_port || save;
2509 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2510 struct source_message_set_port msg = { .port = port, .ret = 0 };
2511 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
2515 ret = s->set_port(s, port);
2518 return -PA_ERR_NOENTITY;
2520 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2522 pa_log_info("Changed port of source %u \"%s\" to %s", s->index, s->name, port->name);
2524 s->active_port = port;
2525 s->save_port = save;
2527 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_CHANGED], s);
2532 PA_STATIC_FLIST_DECLARE(pa_source_volume_change, 0, pa_xfree);
2534 /* Called from the IO thread. */
2535 static pa_source_volume_change *pa_source_volume_change_new(pa_source *s) {
2536 pa_source_volume_change *c;
2537 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change))))
2538 c = pa_xnew(pa_source_volume_change, 1);
2540 PA_LLIST_INIT(pa_source_volume_change, c);
2542 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
2546 /* Called from the IO thread. */
2547 static void pa_source_volume_change_free(pa_source_volume_change *c) {
2549 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change), c) < 0)
2553 /* Called from the IO thread. */
2554 void pa_source_volume_change_push(pa_source *s) {
2555 pa_source_volume_change *c = NULL;
2556 pa_source_volume_change *nc = NULL;
2557 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
2559 const char *direction = NULL;
2562 nc = pa_source_volume_change_new(s);
2564 /* NOTE: There is already more different volumes in pa_source that I can remember.
2565 * Adding one more volume for HW would get us rid of this, but I am trying
2566 * to survive with the ones we already have. */
2567 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
2569 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
2570 pa_log_debug("Volume not changing");
2571 pa_source_volume_change_free(nc);
2575 nc->at = pa_source_get_latency_within_thread(s);
2576 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
2578 if (s->thread_info.volume_changes_tail) {
2579 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
2580 /* If volume is going up let's do it a bit late. If it is going
2581 * down let's do it a bit early. */
2582 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
2583 if (nc->at + safety_margin > c->at) {
2584 nc->at += safety_margin;
2589 else if (nc->at - safety_margin > c->at) {
2590 nc->at -= safety_margin;
2598 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
2599 nc->at += safety_margin;
2602 nc->at -= safety_margin;
2605 PA_LLIST_PREPEND(pa_source_volume_change, s->thread_info.volume_changes, nc);
2608 PA_LLIST_INSERT_AFTER(pa_source_volume_change, s->thread_info.volume_changes, c, nc);
2611 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
2613 /* We can ignore volume events that came earlier but should happen later than this. */
2614 PA_LLIST_FOREACH(c, nc->next) {
2615 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
2616 pa_source_volume_change_free(c);
2619 s->thread_info.volume_changes_tail = nc;
2622 /* Called from the IO thread. */
2623 static void pa_source_volume_change_flush(pa_source *s) {
2624 pa_source_volume_change *c = s->thread_info.volume_changes;
2626 s->thread_info.volume_changes = NULL;
2627 s->thread_info.volume_changes_tail = NULL;
2629 pa_source_volume_change *next = c->next;
2630 pa_source_volume_change_free(c);
2635 /* Called from the IO thread. */
2636 pa_bool_t pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next) {
2638 pa_bool_t ret = FALSE;
2642 if (!s->thread_info.volume_changes || !PA_SOURCE_IS_LINKED(s->state)) {
2648 pa_assert(s->write_volume);
2650 now = pa_rtclock_now();
2652 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
2653 pa_source_volume_change *c = s->thread_info.volume_changes;
2654 PA_LLIST_REMOVE(pa_source_volume_change, s->thread_info.volume_changes, c);
2655 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2656 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
2658 s->thread_info.current_hw_volume = c->hw_volume;
2659 pa_source_volume_change_free(c);
2665 if (s->thread_info.volume_changes) {
2667 *usec_to_next = s->thread_info.volume_changes->at - now;
2668 if (pa_log_ratelimit(PA_LOG_DEBUG))
2669 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
2674 s->thread_info.volume_changes_tail = NULL;
2680 /* Called from the main thread */
2681 /* Gets the list of formats supported by the source. The members and idxset must
2682 * be freed by the caller. */
2683 pa_idxset* pa_source_get_formats(pa_source *s) {
2688 if (s->get_formats) {
2689 /* Source supports format query, all is good */
2690 ret = s->get_formats(s);
2692 /* Source doesn't support format query, so assume it does PCM */
2693 pa_format_info *f = pa_format_info_new();
2694 f->encoding = PA_ENCODING_PCM;
2696 ret = pa_idxset_new(NULL, NULL);
2697 pa_idxset_put(ret, f, NULL);
2703 /* Called from the main thread */
2704 /* Checks if the source can accept this format */
2705 pa_bool_t pa_source_check_format(pa_source *s, pa_format_info *f)
2707 pa_idxset *formats = NULL;
2708 pa_bool_t ret = FALSE;
2713 formats = pa_source_get_formats(s);
2716 pa_format_info *finfo_device;
2719 PA_IDXSET_FOREACH(finfo_device, formats, i) {
2720 if (pa_format_info_is_compatible(finfo_device, f)) {
2726 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
2732 /* Called from the main thread */
2733 /* Calculates the intersection between formats supported by the source and
2734 * in_formats, and returns these, in the order of the source's formats. */
2735 pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats) {
2736 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *source_formats = NULL;
2737 pa_format_info *f_source, *f_in;
2742 if (!in_formats || pa_idxset_isempty(in_formats))
2745 source_formats = pa_source_get_formats(s);
2747 PA_IDXSET_FOREACH(f_source, source_formats, i) {
2748 PA_IDXSET_FOREACH(f_in, in_formats, j) {
2749 if (pa_format_info_is_compatible(f_source, f_in))
2750 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
2756 pa_idxset_free(source_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);