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();
76 data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
81 void pa_source_new_data_set_name(pa_source_new_data *data, const char *name) {
85 data->name = pa_xstrdup(name);
88 void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec) {
91 if ((data->sample_spec_is_set = !!spec))
92 data->sample_spec = *spec;
95 void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map) {
98 if ((data->channel_map_is_set = !!map))
99 data->channel_map = *map;
102 void pa_source_new_data_set_alternate_sample_rate(pa_source_new_data *data, const uint32_t alternate_sample_rate) {
105 data->alternate_sample_rate_is_set = TRUE;
106 data->alternate_sample_rate = alternate_sample_rate;
109 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume) {
112 if ((data->volume_is_set = !!volume))
113 data->volume = *volume;
116 void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute) {
119 data->muted_is_set = TRUE;
120 data->muted = !!mute;
123 void pa_source_new_data_set_port(pa_source_new_data *data, const char *port) {
126 pa_xfree(data->active_port);
127 data->active_port = pa_xstrdup(port);
130 void pa_source_new_data_done(pa_source_new_data *data) {
133 pa_proplist_free(data->proplist);
136 pa_device_port_hashmap_free(data->ports);
138 pa_xfree(data->name);
139 pa_xfree(data->active_port);
142 /* Called from main context */
143 static void reset_callbacks(pa_source *s) {
147 s->get_volume = NULL;
148 s->set_volume = NULL;
149 s->write_volume = NULL;
152 s->update_requested_latency = NULL;
154 s->get_formats = NULL;
155 s->update_rate = NULL;
158 /* Called from main context */
159 pa_source* pa_source_new(
161 pa_source_new_data *data,
162 pa_source_flags_t flags) {
166 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
171 pa_assert(data->name);
172 pa_assert_ctl_context();
174 s = pa_msgobject_new(pa_source);
176 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
177 pa_log_debug("Failed to register name %s.", data->name);
182 pa_source_new_data_set_name(data, name);
184 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
186 pa_namereg_unregister(core, name);
190 /* FIXME, need to free s here on failure */
192 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
193 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
195 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
197 if (!data->channel_map_is_set)
198 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
200 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
201 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
203 /* FIXME: There should probably be a general function for checking whether
204 * the source volume is allowed to be set, like there is for source outputs. */
205 pa_assert(!data->volume_is_set || !(flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
207 if (!data->volume_is_set) {
208 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
209 data->save_volume = FALSE;
212 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
213 pa_return_null_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec));
215 if (!data->muted_is_set)
219 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
221 pa_device_init_description(data->proplist);
222 pa_device_init_icon(data->proplist, FALSE);
223 pa_device_init_intended_roles(data->proplist);
225 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
227 pa_namereg_unregister(core, name);
231 s->parent.parent.free = source_free;
232 s->parent.process_msg = pa_source_process_msg;
235 s->state = PA_SOURCE_INIT;
238 s->suspend_cause = data->suspend_cause;
239 pa_source_set_mixer_dirty(s, FALSE);
240 s->name = pa_xstrdup(name);
241 s->proplist = pa_proplist_copy(data->proplist);
242 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
243 s->module = data->module;
244 s->card = data->card;
246 s->priority = pa_device_init_priority(s->proplist);
248 s->sample_spec = data->sample_spec;
249 s->channel_map = data->channel_map;
250 s->default_sample_rate = s->sample_spec.rate;
252 if (data->alternate_sample_rate_is_set)
253 s->alternate_sample_rate = data->alternate_sample_rate;
255 s->alternate_sample_rate = s->core->alternate_sample_rate;
257 if (s->sample_spec.rate == s->alternate_sample_rate) {
258 pa_log_warn("Default and alternate sample rates are the same.");
259 s->alternate_sample_rate = 0;
262 s->outputs = pa_idxset_new(NULL, NULL);
264 s->monitor_of = NULL;
265 s->output_from_master = NULL;
267 s->reference_volume = s->real_volume = data->volume;
268 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
269 s->base_volume = PA_VOLUME_NORM;
270 s->n_volume_steps = PA_VOLUME_NORM+1;
271 s->muted = data->muted;
272 s->refresh_volume = s->refresh_muted = FALSE;
279 /* As a minor optimization we just steal the list instead of
281 s->ports = data->ports;
284 s->active_port = NULL;
285 s->save_port = FALSE;
287 if (data->active_port)
288 if ((s->active_port = pa_hashmap_get(s->ports, data->active_port)))
289 s->save_port = data->save_port;
291 if (!s->active_port) {
295 PA_HASHMAP_FOREACH(p, s->ports, state)
296 if (!s->active_port || p->priority > s->active_port->priority)
301 s->latency_offset = s->active_port->latency_offset;
303 s->latency_offset = 0;
305 s->save_volume = data->save_volume;
306 s->save_muted = data->save_muted;
308 pa_silence_memchunk_get(
309 &core->silence_cache,
315 s->thread_info.rtpoll = NULL;
316 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
317 s->thread_info.soft_volume = s->soft_volume;
318 s->thread_info.soft_muted = s->muted;
319 s->thread_info.state = s->state;
320 s->thread_info.max_rewind = 0;
321 s->thread_info.requested_latency_valid = FALSE;
322 s->thread_info.requested_latency = 0;
323 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
324 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
325 s->thread_info.fixed_latency = flags & PA_SOURCE_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
327 PA_LLIST_HEAD_INIT(pa_source_volume_change, s->thread_info.volume_changes);
328 s->thread_info.volume_changes_tail = NULL;
329 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
330 s->thread_info.volume_change_safety_margin = core->deferred_volume_safety_margin_usec;
331 s->thread_info.volume_change_extra_delay = core->deferred_volume_extra_delay_usec;
332 s->thread_info.latency_offset = s->latency_offset;
334 /* FIXME: This should probably be moved to pa_source_put() */
335 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
338 pa_assert_se(pa_idxset_put(s->card->sources, s, NULL) >= 0);
340 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
341 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
344 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
345 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
352 /* Called from main context */
353 static int source_set_state(pa_source *s, pa_source_state_t state) {
355 pa_bool_t suspend_change;
356 pa_source_state_t original_state;
359 pa_assert_ctl_context();
361 if (s->state == state)
364 original_state = s->state;
367 (original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
368 (PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
371 if ((ret = s->set_state(s, state)) < 0)
375 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
378 s->set_state(s, original_state);
385 if (state != PA_SOURCE_UNLINKED) { /* if we enter UNLINKED state pa_source_unlink() will fire the appropriate events */
386 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
387 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
390 if (suspend_change) {
394 /* We're suspending or resuming, tell everyone about it */
396 PA_IDXSET_FOREACH(o, s->outputs, idx)
397 if (s->state == PA_SOURCE_SUSPENDED &&
398 (o->flags & PA_SOURCE_OUTPUT_KILL_ON_SUSPEND))
399 pa_source_output_kill(o);
401 o->suspend(o, state == PA_SOURCE_SUSPENDED);
407 void pa_source_set_get_volume_callback(pa_source *s, pa_source_cb_t cb) {
413 void pa_source_set_set_volume_callback(pa_source *s, pa_source_cb_t cb) {
414 pa_source_flags_t flags;
417 pa_assert(!s->write_volume || cb);
421 /* Save the current flags so we can tell if they've changed */
425 /* The source implementor is responsible for setting decibel volume support */
426 s->flags |= PA_SOURCE_HW_VOLUME_CTRL;
428 s->flags &= ~PA_SOURCE_HW_VOLUME_CTRL;
429 /* See note below in pa_source_put() about volume sharing and decibel volumes */
430 pa_source_enable_decibel_volume(s, !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
433 /* If the flags have changed after init, let any clients know via a change event */
434 if (s->state != PA_SOURCE_INIT && flags != s->flags)
435 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
438 void pa_source_set_write_volume_callback(pa_source *s, pa_source_cb_t cb) {
439 pa_source_flags_t flags;
442 pa_assert(!cb || s->set_volume);
444 s->write_volume = cb;
446 /* Save the current flags so we can tell if they've changed */
450 s->flags |= PA_SOURCE_DEFERRED_VOLUME;
452 s->flags &= ~PA_SOURCE_DEFERRED_VOLUME;
454 /* If the flags have changed after init, let any clients know via a change event */
455 if (s->state != PA_SOURCE_INIT && flags != s->flags)
456 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
459 void pa_source_set_get_mute_callback(pa_source *s, pa_source_cb_t cb) {
465 void pa_source_set_set_mute_callback(pa_source *s, pa_source_cb_t cb) {
466 pa_source_flags_t flags;
472 /* Save the current flags so we can tell if they've changed */
476 s->flags |= PA_SOURCE_HW_MUTE_CTRL;
478 s->flags &= ~PA_SOURCE_HW_MUTE_CTRL;
480 /* If the flags have changed after init, let any clients know via a change event */
481 if (s->state != PA_SOURCE_INIT && flags != s->flags)
482 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
485 static void enable_flat_volume(pa_source *s, pa_bool_t enable) {
486 pa_source_flags_t flags;
490 /* Always follow the overall user preference here */
491 enable = enable && s->core->flat_volumes;
493 /* Save the current flags so we can tell if they've changed */
497 s->flags |= PA_SOURCE_FLAT_VOLUME;
499 s->flags &= ~PA_SOURCE_FLAT_VOLUME;
501 /* If the flags have changed after init, let any clients know via a change event */
502 if (s->state != PA_SOURCE_INIT && flags != s->flags)
503 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
506 void pa_source_enable_decibel_volume(pa_source *s, pa_bool_t enable) {
507 pa_source_flags_t flags;
511 /* Save the current flags so we can tell if they've changed */
515 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
516 enable_flat_volume(s, TRUE);
518 s->flags &= ~PA_SOURCE_DECIBEL_VOLUME;
519 enable_flat_volume(s, FALSE);
522 /* If the flags have changed after init, let any clients know via a change event */
523 if (s->state != PA_SOURCE_INIT && flags != s->flags)
524 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
527 /* Called from main context */
528 void pa_source_put(pa_source *s) {
529 pa_source_assert_ref(s);
530 pa_assert_ctl_context();
532 pa_assert(s->state == PA_SOURCE_INIT);
533 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || s->output_from_master);
535 /* The following fields must be initialized properly when calling _put() */
536 pa_assert(s->asyncmsgq);
537 pa_assert(s->thread_info.min_latency <= s->thread_info.max_latency);
539 /* Generally, flags should be initialized via pa_source_new(). As a
540 * special exception we allow some volume related flags to be set
541 * between _new() and _put() by the callback setter functions above.
543 * Thus we implement a couple safeguards here which ensure the above
544 * setters were used (or at least the implementor made manual changes
545 * in a compatible way).
547 * Note: All of these flags set here can change over the life time
549 pa_assert(!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) || s->set_volume);
550 pa_assert(!(s->flags & PA_SOURCE_DEFERRED_VOLUME) || s->write_volume);
551 pa_assert(!(s->flags & PA_SOURCE_HW_MUTE_CTRL) || s->set_mute);
553 /* XXX: Currently decibel volume is disabled for all sources that use volume
554 * sharing. When the master source supports decibel volume, it would be good
555 * to have the flag also in the filter source, but currently we don't do that
556 * so that the flags of the filter source never change when it's moved from
557 * a master source to another. One solution for this problem would be to
558 * remove user-visible volume altogether from filter sources when volume
559 * sharing is used, but the current approach was easier to implement... */
560 /* We always support decibel volumes in software, otherwise we leave it to
561 * the source implementor to set this flag as needed.
563 * Note: This flag can also change over the life time of the source. */
564 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL) && !(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
565 pa_source_enable_decibel_volume(s, TRUE);
567 /* If the source implementor support DB volumes by itself, we should always
568 * try and enable flat volumes too */
569 if ((s->flags & PA_SOURCE_DECIBEL_VOLUME))
570 enable_flat_volume(s, TRUE);
572 if (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) {
573 pa_source *root_source = pa_source_get_master(s);
575 pa_assert(PA_LIKELY(root_source));
577 s->reference_volume = root_source->reference_volume;
578 pa_cvolume_remap(&s->reference_volume, &root_source->channel_map, &s->channel_map);
580 s->real_volume = root_source->real_volume;
581 pa_cvolume_remap(&s->real_volume, &root_source->channel_map, &s->channel_map);
583 /* We assume that if the sink implementor changed the default
584 * volume he did so in real_volume, because that is the usual
585 * place where he is supposed to place his changes. */
586 s->reference_volume = s->real_volume;
588 s->thread_info.soft_volume = s->soft_volume;
589 s->thread_info.soft_muted = s->muted;
590 pa_sw_cvolume_multiply(&s->thread_info.current_hw_volume, &s->soft_volume, &s->real_volume);
592 pa_assert((s->flags & PA_SOURCE_HW_VOLUME_CTRL)
593 || (s->base_volume == PA_VOLUME_NORM
594 && ((s->flags & PA_SOURCE_DECIBEL_VOLUME || (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)))));
595 pa_assert(!(s->flags & PA_SOURCE_DECIBEL_VOLUME) || s->n_volume_steps == PA_VOLUME_NORM+1);
596 pa_assert(!(s->flags & PA_SOURCE_DYNAMIC_LATENCY) == (s->thread_info.fixed_latency != 0));
598 if (s->suspend_cause)
599 pa_assert_se(source_set_state(s, PA_SOURCE_SUSPENDED) == 0);
601 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
603 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
604 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
607 /* Called from main context */
608 void pa_source_unlink(pa_source *s) {
610 pa_source_output *o, *j = NULL;
613 pa_assert_ctl_context();
615 /* See pa_sink_unlink() for a couple of comments how this function
618 linked = PA_SOURCE_IS_LINKED(s->state);
621 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
623 if (s->state != PA_SOURCE_UNLINKED)
624 pa_namereg_unregister(s->core, s->name);
625 pa_idxset_remove_by_data(s->core->sources, s, NULL);
628 pa_idxset_remove_by_data(s->card->sources, s, NULL);
630 while ((o = pa_idxset_first(s->outputs, NULL))) {
632 pa_source_output_kill(o);
637 source_set_state(s, PA_SOURCE_UNLINKED);
639 s->state = PA_SOURCE_UNLINKED;
644 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
645 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
649 /* Called from main context */
650 static void source_free(pa_object *o) {
651 pa_source_output *so;
652 pa_source *s = PA_SOURCE(o);
655 pa_assert_ctl_context();
656 pa_assert(pa_source_refcnt(s) == 0);
658 if (PA_SOURCE_IS_LINKED(s->state))
661 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
663 pa_idxset_free(s->outputs, NULL, NULL);
665 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
666 pa_source_output_unref(so);
668 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
670 if (s->silence.memblock)
671 pa_memblock_unref(s->silence.memblock);
677 pa_proplist_free(s->proplist);
680 pa_device_port_hashmap_free(s->ports);
685 /* Called from main context, and not while the IO thread is active, please */
686 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
687 pa_source_assert_ref(s);
688 pa_assert_ctl_context();
693 /* Called from main context, and not while the IO thread is active, please */
694 void pa_source_update_flags(pa_source *s, pa_source_flags_t mask, pa_source_flags_t value) {
695 pa_source_assert_ref(s);
696 pa_assert_ctl_context();
701 /* For now, allow only a minimal set of flags to be changed. */
702 pa_assert((mask & ~(PA_SOURCE_DYNAMIC_LATENCY|PA_SOURCE_LATENCY)) == 0);
704 s->flags = (s->flags & ~mask) | (value & mask);
707 /* Called from IO context, or before _put() from main context */
708 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
709 pa_source_assert_ref(s);
710 pa_source_assert_io_context(s);
712 s->thread_info.rtpoll = p;
715 /* Called from main context */
716 int pa_source_update_status(pa_source*s) {
717 pa_source_assert_ref(s);
718 pa_assert_ctl_context();
719 pa_assert(PA_SOURCE_IS_LINKED(s->state));
721 if (s->state == PA_SOURCE_SUSPENDED)
724 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
727 /* Called from any context - must be threadsafe */
728 void pa_source_set_mixer_dirty(pa_source *s, pa_bool_t is_dirty)
730 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
733 /* Called from main context */
734 int pa_source_suspend(pa_source *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
735 pa_source_assert_ref(s);
736 pa_assert_ctl_context();
737 pa_assert(PA_SOURCE_IS_LINKED(s->state));
738 pa_assert(cause != 0);
740 if (s->monitor_of && cause != PA_SUSPEND_PASSTHROUGH)
741 return -PA_ERR_NOTSUPPORTED;
744 s->suspend_cause |= cause;
746 s->suspend_cause &= ~cause;
748 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
749 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
750 it'll be handled just fine. */
751 pa_source_set_mixer_dirty(s, FALSE);
752 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
753 if (s->active_port && s->set_port) {
754 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
755 struct source_message_set_port msg = { .port = s->active_port, .ret = 0 };
756 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
759 s->set_port(s, s->active_port);
769 if ((pa_source_get_state(s) == PA_SOURCE_SUSPENDED) == !!s->suspend_cause)
772 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
774 if (s->suspend_cause)
775 return source_set_state(s, PA_SOURCE_SUSPENDED);
777 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
780 /* Called from main context */
781 int pa_source_sync_suspend(pa_source *s) {
782 pa_sink_state_t state;
784 pa_source_assert_ref(s);
785 pa_assert_ctl_context();
786 pa_assert(PA_SOURCE_IS_LINKED(s->state));
787 pa_assert(s->monitor_of);
789 state = pa_sink_get_state(s->monitor_of);
791 if (state == PA_SINK_SUSPENDED)
792 return source_set_state(s, PA_SOURCE_SUSPENDED);
794 pa_assert(PA_SINK_IS_OPENED(state));
796 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
799 /* Called from main context */
800 pa_queue *pa_source_move_all_start(pa_source *s, pa_queue *q) {
801 pa_source_output *o, *n;
804 pa_source_assert_ref(s);
805 pa_assert_ctl_context();
806 pa_assert(PA_SOURCE_IS_LINKED(s->state));
811 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
812 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
814 pa_source_output_ref(o);
816 if (pa_source_output_start_move(o) >= 0)
819 pa_source_output_unref(o);
825 /* Called from main context */
826 void pa_source_move_all_finish(pa_source *s, pa_queue *q, pa_bool_t save) {
829 pa_source_assert_ref(s);
830 pa_assert_ctl_context();
831 pa_assert(PA_SOURCE_IS_LINKED(s->state));
834 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
835 if (pa_source_output_finish_move(o, s, save) < 0)
836 pa_source_output_fail_move(o);
838 pa_source_output_unref(o);
841 pa_queue_free(q, NULL);
844 /* Called from main context */
845 void pa_source_move_all_fail(pa_queue *q) {
848 pa_assert_ctl_context();
851 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
852 pa_source_output_fail_move(o);
853 pa_source_output_unref(o);
856 pa_queue_free(q, NULL);
859 /* Called from IO thread context */
860 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
864 pa_source_assert_ref(s);
865 pa_source_assert_io_context(s);
866 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
871 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
874 pa_log_debug("Processing rewind...");
876 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
877 pa_source_output_assert_ref(o);
878 pa_source_output_process_rewind(o, nbytes);
882 /* Called from IO thread context */
883 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
887 pa_source_assert_ref(s);
888 pa_source_assert_io_context(s);
889 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
892 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
895 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
896 pa_memchunk vchunk = *chunk;
898 pa_memblock_ref(vchunk.memblock);
899 pa_memchunk_make_writable(&vchunk, 0);
901 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
902 pa_silence_memchunk(&vchunk, &s->sample_spec);
904 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
906 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
907 pa_source_output_assert_ref(o);
909 if (!o->thread_info.direct_on_input)
910 pa_source_output_push(o, &vchunk);
913 pa_memblock_unref(vchunk.memblock);
916 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
917 pa_source_output_assert_ref(o);
919 if (!o->thread_info.direct_on_input)
920 pa_source_output_push(o, chunk);
925 /* Called from IO thread context */
926 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
927 pa_source_assert_ref(s);
928 pa_source_assert_io_context(s);
929 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
930 pa_source_output_assert_ref(o);
931 pa_assert(o->thread_info.direct_on_input);
934 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
937 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
938 pa_memchunk vchunk = *chunk;
940 pa_memblock_ref(vchunk.memblock);
941 pa_memchunk_make_writable(&vchunk, 0);
943 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
944 pa_silence_memchunk(&vchunk, &s->sample_spec);
946 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
948 pa_source_output_push(o, &vchunk);
950 pa_memblock_unref(vchunk.memblock);
952 pa_source_output_push(o, chunk);
955 /* Called from main thread */
956 pa_bool_t pa_source_update_rate(pa_source *s, uint32_t rate, pa_bool_t passthrough)
958 if (s->update_rate) {
959 uint32_t desired_rate = rate;
960 uint32_t default_rate = s->default_sample_rate;
961 uint32_t alternate_rate = s->alternate_sample_rate;
964 pa_bool_t use_alternate = FALSE;
966 if (PA_UNLIKELY(default_rate == alternate_rate)) {
967 pa_log_warn("Default and alternate sample rates are the same.");
971 if (PA_SOURCE_IS_RUNNING(s->state)) {
972 pa_log_info("Cannot update rate, SOURCE_IS_RUNNING, will keep using %u Hz",
973 s->sample_spec.rate);
977 if (PA_UNLIKELY (desired_rate < 8000 ||
978 desired_rate > PA_RATE_MAX))
982 pa_assert(default_rate % 4000 || default_rate % 11025);
983 pa_assert(alternate_rate % 4000 || alternate_rate % 11025);
985 if (default_rate % 4000) {
986 /* default is a 11025 multiple */
987 if ((alternate_rate % 4000 == 0) && (desired_rate % 4000 == 0))
990 /* default is 4000 multiple */
991 if ((alternate_rate % 11025 == 0) && (desired_rate % 11025 == 0))
996 desired_rate = alternate_rate;
998 desired_rate = default_rate;
1000 desired_rate = rate; /* use stream sampling rate, discard default/alternate settings */
1003 if (desired_rate == s->sample_spec.rate)
1006 if (!passthrough && pa_source_used_by(s) > 0)
1009 pa_source_suspend(s, TRUE, PA_SUSPEND_IDLE); /* needed before rate update, will be resumed automatically */
1011 if (s->update_rate(s, desired_rate) == TRUE) {
1012 pa_log_info("Changed sampling rate successfully ");
1014 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1015 if (o->state == PA_SOURCE_OUTPUT_CORKED)
1016 pa_source_output_update_rate(o);
1024 /* Called from main thread */
1025 pa_usec_t pa_source_get_latency(pa_source *s) {
1028 pa_source_assert_ref(s);
1029 pa_assert_ctl_context();
1030 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1032 if (s->state == PA_SOURCE_SUSPENDED)
1035 if (!(s->flags & PA_SOURCE_LATENCY))
1038 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1040 /* usec is unsigned, so check that the offset can be added to usec without
1042 if (-s->latency_offset <= (int64_t) usec)
1043 usec += s->latency_offset;
1050 /* Called from IO thread */
1051 pa_usec_t pa_source_get_latency_within_thread(pa_source *s) {
1055 pa_source_assert_ref(s);
1056 pa_source_assert_io_context(s);
1057 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
1059 /* The returned value is supposed to be in the time domain of the sound card! */
1061 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
1064 if (!(s->flags & PA_SOURCE_LATENCY))
1067 o = PA_MSGOBJECT(s);
1069 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1071 if (o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1074 /* usec is unsigned, so check that the offset can be added to usec without
1076 if (-s->thread_info.latency_offset <= (int64_t) usec)
1077 usec += s->thread_info.latency_offset;
1084 /* Called from the main thread (and also from the IO thread while the main
1085 * thread is waiting).
1087 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
1088 * set. Instead, flat volume mode is detected by checking whether the root source
1089 * has the flag set. */
1090 pa_bool_t pa_source_flat_volume_enabled(pa_source *s) {
1091 pa_source_assert_ref(s);
1093 s = pa_source_get_master(s);
1096 return (s->flags & PA_SOURCE_FLAT_VOLUME);
1101 /* Called from the main thread (and also from the IO thread while the main
1102 * thread is waiting). */
1103 pa_source *pa_source_get_master(pa_source *s) {
1104 pa_source_assert_ref(s);
1106 while (s && (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1107 if (PA_UNLIKELY(!s->output_from_master))
1110 s = s->output_from_master->source;
1116 /* Called from main context */
1117 pa_bool_t pa_source_is_passthrough(pa_source *s) {
1119 pa_source_assert_ref(s);
1121 /* NB Currently only monitor sources support passthrough mode */
1122 return (s->monitor_of && pa_sink_is_passthrough(s->monitor_of));
1125 /* Called from main context */
1126 void pa_source_enter_passthrough(pa_source *s) {
1129 /* set the volume to NORM */
1130 s->saved_volume = *pa_source_get_volume(s, TRUE);
1131 s->saved_save_volume = s->save_volume;
1133 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1134 pa_source_set_volume(s, &volume, TRUE, FALSE);
1137 /* Called from main context */
1138 void pa_source_leave_passthrough(pa_source *s) {
1139 /* Restore source volume to what it was before we entered passthrough mode */
1140 pa_source_set_volume(s, &s->saved_volume, TRUE, s->saved_save_volume);
1142 pa_cvolume_init(&s->saved_volume);
1143 s->saved_save_volume = FALSE;
1146 /* Called from main context. */
1147 static void compute_reference_ratio(pa_source_output *o) {
1149 pa_cvolume remapped;
1152 pa_assert(pa_source_flat_volume_enabled(o->source));
1155 * Calculates the reference ratio from the source's reference
1156 * volume. This basically calculates:
1158 * o->reference_ratio = o->volume / o->source->reference_volume
1161 remapped = o->source->reference_volume;
1162 pa_cvolume_remap(&remapped, &o->source->channel_map, &o->channel_map);
1164 o->reference_ratio.channels = o->sample_spec.channels;
1166 for (c = 0; c < o->sample_spec.channels; c++) {
1168 /* We don't update when the source volume is 0 anyway */
1169 if (remapped.values[c] <= PA_VOLUME_MUTED)
1172 /* Don't update the reference ratio unless necessary */
1173 if (pa_sw_volume_multiply(
1174 o->reference_ratio.values[c],
1175 remapped.values[c]) == o->volume.values[c])
1178 o->reference_ratio.values[c] = pa_sw_volume_divide(
1179 o->volume.values[c],
1180 remapped.values[c]);
1184 /* Called from main context. Only called for the root source in volume sharing
1185 * cases, except for internal recursive calls. */
1186 static void compute_reference_ratios(pa_source *s) {
1188 pa_source_output *o;
1190 pa_source_assert_ref(s);
1191 pa_assert_ctl_context();
1192 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1193 pa_assert(pa_source_flat_volume_enabled(s));
1195 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1196 compute_reference_ratio(o);
1198 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1199 compute_reference_ratios(o->destination_source);
1203 /* Called from main context. Only called for the root source in volume sharing
1204 * cases, except for internal recursive calls. */
1205 static void compute_real_ratios(pa_source *s) {
1206 pa_source_output *o;
1209 pa_source_assert_ref(s);
1210 pa_assert_ctl_context();
1211 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1212 pa_assert(pa_source_flat_volume_enabled(s));
1214 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1216 pa_cvolume remapped;
1218 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1219 /* The origin source uses volume sharing, so this input's real ratio
1220 * is handled as a special case - the real ratio must be 0 dB, and
1221 * as a result i->soft_volume must equal i->volume_factor. */
1222 pa_cvolume_reset(&o->real_ratio, o->real_ratio.channels);
1223 o->soft_volume = o->volume_factor;
1225 compute_real_ratios(o->destination_source);
1231 * This basically calculates:
1233 * i->real_ratio := i->volume / s->real_volume
1234 * i->soft_volume := i->real_ratio * i->volume_factor
1237 remapped = s->real_volume;
1238 pa_cvolume_remap(&remapped, &s->channel_map, &o->channel_map);
1240 o->real_ratio.channels = o->sample_spec.channels;
1241 o->soft_volume.channels = o->sample_spec.channels;
1243 for (c = 0; c < o->sample_spec.channels; c++) {
1245 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1246 /* We leave o->real_ratio untouched */
1247 o->soft_volume.values[c] = PA_VOLUME_MUTED;
1251 /* Don't lose accuracy unless necessary */
1252 if (pa_sw_volume_multiply(
1253 o->real_ratio.values[c],
1254 remapped.values[c]) != o->volume.values[c])
1256 o->real_ratio.values[c] = pa_sw_volume_divide(
1257 o->volume.values[c],
1258 remapped.values[c]);
1260 o->soft_volume.values[c] = pa_sw_volume_multiply(
1261 o->real_ratio.values[c],
1262 o->volume_factor.values[c]);
1265 /* We don't copy the soft_volume to the thread_info data
1266 * here. That must be done by the caller */
1270 static pa_cvolume *cvolume_remap_minimal_impact(
1272 const pa_cvolume *template,
1273 const pa_channel_map *from,
1274 const pa_channel_map *to) {
1279 pa_assert(template);
1282 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1283 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1285 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1286 * mapping from source output to source volumes:
1288 * If template is a possible remapping from v it is used instead
1289 * of remapping anew.
1291 * If the channel maps don't match we set an all-channel volume on
1292 * the source to ensure that changing a volume on one stream has no
1293 * effect that cannot be compensated for in another stream that
1294 * does not have the same channel map as the source. */
1296 if (pa_channel_map_equal(from, to))
1300 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1305 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1309 /* Called from main thread. Only called for the root source in volume sharing
1310 * cases, except for internal recursive calls. */
1311 static void get_maximum_output_volume(pa_source *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1312 pa_source_output *o;
1315 pa_source_assert_ref(s);
1316 pa_assert(max_volume);
1317 pa_assert(channel_map);
1318 pa_assert(pa_source_flat_volume_enabled(s));
1320 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1321 pa_cvolume remapped;
1323 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1324 get_maximum_output_volume(o->destination_source, max_volume, channel_map);
1326 /* Ignore this output. The origin source uses volume sharing, so this
1327 * output's volume will be set to be equal to the root source's real
1328 * volume. Obviously this output's current volume must not then
1329 * affect what the root source's real volume will be. */
1333 remapped = o->volume;
1334 cvolume_remap_minimal_impact(&remapped, max_volume, &o->channel_map, channel_map);
1335 pa_cvolume_merge(max_volume, max_volume, &remapped);
1339 /* Called from main thread. Only called for the root source in volume sharing
1340 * cases, except for internal recursive calls. */
1341 static pa_bool_t has_outputs(pa_source *s) {
1342 pa_source_output *o;
1345 pa_source_assert_ref(s);
1347 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1348 if (!o->destination_source || !(o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || has_outputs(o->destination_source))
1355 /* Called from main thread. Only called for the root source in volume sharing
1356 * cases, except for internal recursive calls. */
1357 static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1358 pa_source_output *o;
1361 pa_source_assert_ref(s);
1362 pa_assert(new_volume);
1363 pa_assert(channel_map);
1365 s->real_volume = *new_volume;
1366 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1368 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1369 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1370 if (pa_source_flat_volume_enabled(s)) {
1371 pa_cvolume old_volume = o->volume;
1373 /* Follow the root source's real volume. */
1374 o->volume = *new_volume;
1375 pa_cvolume_remap(&o->volume, channel_map, &o->channel_map);
1376 compute_reference_ratio(o);
1378 /* The volume changed, let's tell people so */
1379 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1380 if (o->volume_changed)
1381 o->volume_changed(o);
1383 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1387 update_real_volume(o->destination_source, new_volume, channel_map);
1392 /* Called from main thread. Only called for the root source in shared volume
1394 static void compute_real_volume(pa_source *s) {
1395 pa_source_assert_ref(s);
1396 pa_assert_ctl_context();
1397 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1398 pa_assert(pa_source_flat_volume_enabled(s));
1399 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1401 /* This determines the maximum volume of all streams and sets
1402 * s->real_volume accordingly. */
1404 if (!has_outputs(s)) {
1405 /* In the special case that we have no source outputs we leave the
1406 * volume unmodified. */
1407 update_real_volume(s, &s->reference_volume, &s->channel_map);
1411 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1413 /* First let's determine the new maximum volume of all outputs
1414 * connected to this source */
1415 get_maximum_output_volume(s, &s->real_volume, &s->channel_map);
1416 update_real_volume(s, &s->real_volume, &s->channel_map);
1418 /* Then, let's update the real ratios/soft volumes of all outputs
1419 * connected to this source */
1420 compute_real_ratios(s);
1423 /* Called from main thread. Only called for the root source in shared volume
1424 * cases, except for internal recursive calls. */
1425 static void propagate_reference_volume(pa_source *s) {
1426 pa_source_output *o;
1429 pa_source_assert_ref(s);
1430 pa_assert_ctl_context();
1431 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1432 pa_assert(pa_source_flat_volume_enabled(s));
1434 /* This is called whenever the source volume changes that is not
1435 * caused by a source output volume change. We need to fix up the
1436 * source output volumes accordingly */
1438 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1439 pa_cvolume old_volume;
1441 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1442 propagate_reference_volume(o->destination_source);
1444 /* Since the origin source uses volume sharing, this output's volume
1445 * needs to be updated to match the root source's real volume, but
1446 * that will be done later in update_shared_real_volume(). */
1450 old_volume = o->volume;
1452 /* This basically calculates:
1454 * o->volume := o->reference_volume * o->reference_ratio */
1456 o->volume = s->reference_volume;
1457 pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
1458 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1460 /* The volume changed, let's tell people so */
1461 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1463 if (o->volume_changed)
1464 o->volume_changed(o);
1466 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1471 /* Called from main thread. Only called for the root source in volume sharing
1472 * cases, except for internal recursive calls. The return value indicates
1473 * whether any reference volume actually changed. */
1474 static pa_bool_t update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1476 pa_bool_t reference_volume_changed;
1477 pa_source_output *o;
1480 pa_source_assert_ref(s);
1481 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1483 pa_assert(channel_map);
1484 pa_assert(pa_cvolume_valid(v));
1487 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1489 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1490 s->reference_volume = volume;
1492 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1494 if (reference_volume_changed)
1495 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1496 else if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1497 /* If the root source's volume doesn't change, then there can't be any
1498 * changes in the other source in the source tree either.
1500 * It's probably theoretically possible that even if the root source's
1501 * volume changes slightly, some filter source doesn't change its volume
1502 * due to rounding errors. If that happens, we still want to propagate
1503 * the changed root source volume to the sources connected to the
1504 * intermediate source that didn't change its volume. This theoretical
1505 * possibility is the reason why we have that !(s->flags &
1506 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1507 * notice even if we returned here FALSE always if
1508 * reference_volume_changed is FALSE. */
1511 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1512 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1513 update_reference_volume(o->destination_source, v, channel_map, FALSE);
1519 /* Called from main thread */
1520 void pa_source_set_volume(
1522 const pa_cvolume *volume,
1526 pa_cvolume new_reference_volume;
1527 pa_source *root_source;
1529 pa_source_assert_ref(s);
1530 pa_assert_ctl_context();
1531 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1532 pa_assert(!volume || pa_cvolume_valid(volume));
1533 pa_assert(volume || pa_source_flat_volume_enabled(s));
1534 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1536 /* make sure we don't change the volume in PASSTHROUGH mode ...
1537 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1538 if (pa_source_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1539 pa_log_warn("Cannot change volume, source is monitor of a PASSTHROUGH sink");
1543 /* In case of volume sharing, the volume is set for the root source first,
1544 * from which it's then propagated to the sharing sources. */
1545 root_source = pa_source_get_master(s);
1547 if (PA_UNLIKELY(!root_source))
1550 /* As a special exception we accept mono volumes on all sources --
1551 * even on those with more complex channel maps */
1554 if (pa_cvolume_compatible(volume, &s->sample_spec))
1555 new_reference_volume = *volume;
1557 new_reference_volume = s->reference_volume;
1558 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1561 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1563 if (update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save)) {
1564 if (pa_source_flat_volume_enabled(root_source)) {
1565 /* OK, propagate this volume change back to the outputs */
1566 propagate_reference_volume(root_source);
1568 /* And now recalculate the real volume */
1569 compute_real_volume(root_source);
1571 update_real_volume(root_source, &root_source->reference_volume, &root_source->channel_map);
1575 /* If volume is NULL we synchronize the source's real and
1576 * reference volumes with the stream volumes. */
1578 pa_assert(pa_source_flat_volume_enabled(root_source));
1580 /* Ok, let's determine the new real volume */
1581 compute_real_volume(root_source);
1583 /* Let's 'push' the reference volume if necessary */
1584 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_source->real_volume);
1585 /* If the source and it's root don't have the same number of channels, we need to remap */
1586 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1587 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1588 update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save);
1590 /* Now that the reference volume is updated, we can update the streams'
1591 * reference ratios. */
1592 compute_reference_ratios(root_source);
1595 if (root_source->set_volume) {
1596 /* If we have a function set_volume(), then we do not apply a
1597 * soft volume by default. However, set_volume() is free to
1598 * apply one to root_source->soft_volume */
1600 pa_cvolume_reset(&root_source->soft_volume, root_source->sample_spec.channels);
1601 if (!(root_source->flags & PA_SOURCE_DEFERRED_VOLUME))
1602 root_source->set_volume(root_source);
1605 /* If we have no function set_volume(), then the soft volume
1606 * becomes the real volume */
1607 root_source->soft_volume = root_source->real_volume;
1609 /* This tells the source that soft volume and/or real volume changed */
1611 pa_assert_se(pa_asyncmsgq_send(root_source->asyncmsgq, PA_MSGOBJECT(root_source), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1614 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1615 * Only to be called by source implementor */
1616 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
1618 pa_source_assert_ref(s);
1619 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1621 if (s->flags & PA_SOURCE_DEFERRED_VOLUME)
1622 pa_source_assert_io_context(s);
1624 pa_assert_ctl_context();
1627 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
1629 s->soft_volume = *volume;
1631 if (PA_SOURCE_IS_LINKED(s->state) && !(s->flags & PA_SOURCE_DEFERRED_VOLUME))
1632 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
1634 s->thread_info.soft_volume = s->soft_volume;
1637 /* Called from the main thread. Only called for the root source in volume sharing
1638 * cases, except for internal recursive calls. */
1639 static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volume) {
1640 pa_source_output *o;
1643 pa_source_assert_ref(s);
1644 pa_assert(old_real_volume);
1645 pa_assert_ctl_context();
1646 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1648 /* This is called when the hardware's real volume changes due to
1649 * some external event. We copy the real volume into our
1650 * reference volume and then rebuild the stream volumes based on
1651 * i->real_ratio which should stay fixed. */
1653 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1654 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
1657 /* 1. Make the real volume the reference volume */
1658 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
1661 if (pa_source_flat_volume_enabled(s)) {
1663 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1664 pa_cvolume old_volume = o->volume;
1666 /* 2. Since the source's reference and real volumes are equal
1667 * now our ratios should be too. */
1668 o->reference_ratio = o->real_ratio;
1670 /* 3. Recalculate the new stream reference volume based on the
1671 * reference ratio and the sink's reference volume.
1673 * This basically calculates:
1675 * o->volume = s->reference_volume * o->reference_ratio
1677 * This is identical to propagate_reference_volume() */
1678 o->volume = s->reference_volume;
1679 pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
1680 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1682 /* Notify if something changed */
1683 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1685 if (o->volume_changed)
1686 o->volume_changed(o);
1688 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1691 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1692 propagate_real_volume(o->destination_source, old_real_volume);
1696 /* Something got changed in the hardware. It probably makes sense
1697 * to save changed hw settings given that hw volume changes not
1698 * triggered by PA are almost certainly done by the user. */
1699 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1700 s->save_volume = TRUE;
1703 /* Called from io thread */
1704 void pa_source_update_volume_and_mute(pa_source *s) {
1706 pa_source_assert_io_context(s);
1708 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
1711 /* Called from main thread */
1712 const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
1713 pa_source_assert_ref(s);
1714 pa_assert_ctl_context();
1715 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1717 if (s->refresh_volume || force_refresh) {
1718 struct pa_cvolume old_real_volume;
1720 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1722 old_real_volume = s->real_volume;
1724 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume)
1727 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
1729 update_real_volume(s, &s->real_volume, &s->channel_map);
1730 propagate_real_volume(s, &old_real_volume);
1733 return &s->reference_volume;
1736 /* Called from main thread. In volume sharing cases, only the root source may
1738 void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_real_volume) {
1739 pa_cvolume old_real_volume;
1741 pa_source_assert_ref(s);
1742 pa_assert_ctl_context();
1743 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1744 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1746 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1748 old_real_volume = s->real_volume;
1749 update_real_volume(s, new_real_volume, &s->channel_map);
1750 propagate_real_volume(s, &old_real_volume);
1753 /* Called from main thread */
1754 void pa_source_set_mute(pa_source *s, pa_bool_t mute, pa_bool_t save) {
1755 pa_bool_t old_muted;
1757 pa_source_assert_ref(s);
1758 pa_assert_ctl_context();
1759 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1761 old_muted = s->muted;
1763 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
1765 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->set_mute)
1768 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1770 if (old_muted != s->muted)
1771 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1774 /* Called from main thread */
1775 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
1777 pa_source_assert_ref(s);
1778 pa_assert_ctl_context();
1779 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1781 if (s->refresh_muted || force_refresh) {
1782 pa_bool_t old_muted = s->muted;
1784 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_mute)
1787 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
1789 if (old_muted != s->muted) {
1790 s->save_muted = TRUE;
1792 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1794 /* Make sure the soft mute status stays in sync */
1795 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1802 /* Called from main thread */
1803 void pa_source_mute_changed(pa_source *s, pa_bool_t new_muted) {
1804 pa_source_assert_ref(s);
1805 pa_assert_ctl_context();
1806 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1808 /* The source implementor may call this if the mute state changed to make sure everyone is notified */
1810 if (s->muted == new_muted)
1813 s->muted = new_muted;
1814 s->save_muted = TRUE;
1816 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1819 /* Called from main thread */
1820 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
1821 pa_source_assert_ref(s);
1822 pa_assert_ctl_context();
1825 pa_proplist_update(s->proplist, mode, p);
1827 if (PA_SOURCE_IS_LINKED(s->state)) {
1828 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1829 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1835 /* Called from main thread */
1836 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1837 void pa_source_set_description(pa_source *s, const char *description) {
1839 pa_source_assert_ref(s);
1840 pa_assert_ctl_context();
1842 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
1845 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1847 if (old && description && pa_streq(old, description))
1851 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
1853 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1855 if (PA_SOURCE_IS_LINKED(s->state)) {
1856 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1857 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1861 /* Called from main thread */
1862 unsigned pa_source_linked_by(pa_source *s) {
1863 pa_source_assert_ref(s);
1864 pa_assert_ctl_context();
1865 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1867 return pa_idxset_size(s->outputs);
1870 /* Called from main thread */
1871 unsigned pa_source_used_by(pa_source *s) {
1874 pa_source_assert_ref(s);
1875 pa_assert_ctl_context();
1876 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1878 ret = pa_idxset_size(s->outputs);
1879 pa_assert(ret >= s->n_corked);
1881 return ret - s->n_corked;
1884 /* Called from main thread */
1885 unsigned pa_source_check_suspend(pa_source *s) {
1887 pa_source_output *o;
1890 pa_source_assert_ref(s);
1891 pa_assert_ctl_context();
1893 if (!PA_SOURCE_IS_LINKED(s->state))
1898 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1899 pa_source_output_state_t st;
1901 st = pa_source_output_get_state(o);
1903 /* We do not assert here. It is perfectly valid for a source output to
1904 * be in the INIT state (i.e. created, marked done but not yet put)
1905 * and we should not care if it's unlinked as it won't contribute
1906 * towards our busy status.
1908 if (!PA_SOURCE_OUTPUT_IS_LINKED(st))
1911 if (st == PA_SOURCE_OUTPUT_CORKED)
1914 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
1923 /* Called from the IO thread */
1924 static void sync_output_volumes_within_thread(pa_source *s) {
1925 pa_source_output *o;
1928 pa_source_assert_ref(s);
1929 pa_source_assert_io_context(s);
1931 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
1932 if (pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume))
1935 o->thread_info.soft_volume = o->soft_volume;
1936 //pa_source_output_request_rewind(o, 0, TRUE, FALSE, FALSE);
1940 /* Called from the IO thread. Only called for the root source in volume sharing
1941 * cases, except for internal recursive calls. */
1942 static void set_shared_volume_within_thread(pa_source *s) {
1943 pa_source_output *o;
1946 pa_source_assert_ref(s);
1948 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
1950 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
1951 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1952 set_shared_volume_within_thread(o->destination_source);
1956 /* Called from IO thread, except when it is not */
1957 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1958 pa_source *s = PA_SOURCE(object);
1959 pa_source_assert_ref(s);
1961 switch ((pa_source_message_t) code) {
1963 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
1964 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
1966 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
1968 if (o->direct_on_input) {
1969 o->thread_info.direct_on_input = o->direct_on_input;
1970 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
1973 pa_assert(!o->thread_info.attached);
1974 o->thread_info.attached = TRUE;
1979 pa_source_output_set_state_within_thread(o, o->state);
1981 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
1982 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
1984 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
1986 /* We don't just invalidate the requested latency here,
1987 * because if we are in a move we might need to fix up the
1988 * requested latency. */
1989 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
1991 /* In flat volume mode we need to update the volume as
1993 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
1996 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
1997 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
1999 pa_source_output_set_state_within_thread(o, o->state);
2004 pa_assert(o->thread_info.attached);
2005 o->thread_info.attached = FALSE;
2007 if (o->thread_info.direct_on_input) {
2008 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
2009 o->thread_info.direct_on_input = NULL;
2012 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
2013 pa_source_output_unref(o);
2015 pa_source_invalidate_requested_latency(s, TRUE);
2017 /* In flat volume mode we need to update the volume as
2019 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2022 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME: {
2023 pa_source *root_source = pa_source_get_master(s);
2025 if (PA_LIKELY(root_source))
2026 set_shared_volume_within_thread(root_source);
2031 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED:
2033 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2035 pa_source_volume_change_push(s);
2037 /* Fall through ... */
2039 case PA_SOURCE_MESSAGE_SET_VOLUME:
2041 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2042 s->thread_info.soft_volume = s->soft_volume;
2045 /* Fall through ... */
2047 case PA_SOURCE_MESSAGE_SYNC_VOLUMES:
2048 sync_output_volumes_within_thread(s);
2051 case PA_SOURCE_MESSAGE_GET_VOLUME:
2053 if ((s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume) {
2055 pa_source_volume_change_flush(s);
2056 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2059 /* In case source implementor reset SW volume. */
2060 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2061 s->thread_info.soft_volume = s->soft_volume;
2066 case PA_SOURCE_MESSAGE_SET_MUTE:
2068 if (s->thread_info.soft_muted != s->muted) {
2069 s->thread_info.soft_muted = s->muted;
2072 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->set_mute)
2077 case PA_SOURCE_MESSAGE_GET_MUTE:
2079 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->get_mute)
2084 case PA_SOURCE_MESSAGE_SET_STATE: {
2086 pa_bool_t suspend_change =
2087 (s->thread_info.state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2088 (PA_SOURCE_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SOURCE_SUSPENDED);
2090 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2092 if (suspend_change) {
2093 pa_source_output *o;
2096 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2097 if (o->suspend_within_thread)
2098 o->suspend_within_thread(o, s->thread_info.state == PA_SOURCE_SUSPENDED);
2104 case PA_SOURCE_MESSAGE_DETACH:
2106 /* Detach all streams */
2107 pa_source_detach_within_thread(s);
2110 case PA_SOURCE_MESSAGE_ATTACH:
2112 /* Reattach all streams */
2113 pa_source_attach_within_thread(s);
2116 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
2118 pa_usec_t *usec = userdata;
2119 *usec = pa_source_get_requested_latency_within_thread(s);
2121 /* Yes, that's right, the IO thread will see -1 when no
2122 * explicit requested latency is configured, the main
2123 * thread will see max_latency */
2124 if (*usec == (pa_usec_t) -1)
2125 *usec = s->thread_info.max_latency;
2130 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
2131 pa_usec_t *r = userdata;
2133 pa_source_set_latency_range_within_thread(s, r[0], r[1]);
2138 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
2139 pa_usec_t *r = userdata;
2141 r[0] = s->thread_info.min_latency;
2142 r[1] = s->thread_info.max_latency;
2147 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY:
2149 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2152 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY:
2154 pa_source_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2157 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
2159 *((size_t*) userdata) = s->thread_info.max_rewind;
2162 case PA_SOURCE_MESSAGE_SET_MAX_REWIND:
2164 pa_source_set_max_rewind_within_thread(s, (size_t) offset);
2167 case PA_SOURCE_MESSAGE_GET_LATENCY:
2169 if (s->monitor_of) {
2170 *((pa_usec_t*) userdata) = 0;
2174 /* Implementors need to overwrite this implementation! */
2177 case PA_SOURCE_MESSAGE_SET_PORT:
2179 pa_assert(userdata);
2181 struct source_message_set_port *msg_data = userdata;
2182 msg_data->ret = s->set_port(s, msg_data->port);
2186 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2187 /* This message is sent from IO-thread and handled in main thread. */
2188 pa_assert_ctl_context();
2190 /* Make sure we're not messing with main thread when no longer linked */
2191 if (!PA_SOURCE_IS_LINKED(s->state))
2194 pa_source_get_volume(s, TRUE);
2195 pa_source_get_mute(s, TRUE);
2198 case PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET:
2199 s->thread_info.latency_offset = offset;
2202 case PA_SOURCE_MESSAGE_MAX:
2209 /* Called from main thread */
2210 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2215 pa_core_assert_ref(c);
2216 pa_assert_ctl_context();
2217 pa_assert(cause != 0);
2219 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx))) {
2222 if (source->monitor_of)
2225 if ((r = pa_source_suspend(source, suspend, cause)) < 0)
2232 /* Called from main thread */
2233 void pa_source_detach(pa_source *s) {
2234 pa_source_assert_ref(s);
2235 pa_assert_ctl_context();
2236 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2238 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2241 /* Called from main thread */
2242 void pa_source_attach(pa_source *s) {
2243 pa_source_assert_ref(s);
2244 pa_assert_ctl_context();
2245 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2247 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2250 /* Called from IO thread */
2251 void pa_source_detach_within_thread(pa_source *s) {
2252 pa_source_output *o;
2255 pa_source_assert_ref(s);
2256 pa_source_assert_io_context(s);
2257 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2259 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2264 /* Called from IO thread */
2265 void pa_source_attach_within_thread(pa_source *s) {
2266 pa_source_output *o;
2269 pa_source_assert_ref(s);
2270 pa_source_assert_io_context(s);
2271 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2273 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2278 /* Called from IO thread */
2279 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
2280 pa_usec_t result = (pa_usec_t) -1;
2281 pa_source_output *o;
2284 pa_source_assert_ref(s);
2285 pa_source_assert_io_context(s);
2287 if (!(s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2288 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2290 if (s->thread_info.requested_latency_valid)
2291 return s->thread_info.requested_latency;
2293 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2294 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
2295 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
2296 result = o->thread_info.requested_source_latency;
2298 if (result != (pa_usec_t) -1)
2299 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2301 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2302 /* Only cache this if we are fully set up */
2303 s->thread_info.requested_latency = result;
2304 s->thread_info.requested_latency_valid = TRUE;
2310 /* Called from main thread */
2311 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
2314 pa_source_assert_ref(s);
2315 pa_assert_ctl_context();
2316 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2318 if (s->state == PA_SOURCE_SUSPENDED)
2321 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2326 /* Called from IO thread */
2327 void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind) {
2328 pa_source_output *o;
2331 pa_source_assert_ref(s);
2332 pa_source_assert_io_context(s);
2334 if (max_rewind == s->thread_info.max_rewind)
2337 s->thread_info.max_rewind = max_rewind;
2339 if (PA_SOURCE_IS_LINKED(s->thread_info.state))
2340 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2341 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2344 /* Called from main thread */
2345 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
2346 pa_source_assert_ref(s);
2347 pa_assert_ctl_context();
2349 if (PA_SOURCE_IS_LINKED(s->state))
2350 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
2352 pa_source_set_max_rewind_within_thread(s, max_rewind);
2355 /* Called from IO thread */
2356 void pa_source_invalidate_requested_latency(pa_source *s, pa_bool_t dynamic) {
2357 pa_source_output *o;
2360 pa_source_assert_ref(s);
2361 pa_source_assert_io_context(s);
2363 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2364 s->thread_info.requested_latency_valid = FALSE;
2368 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2370 if (s->update_requested_latency)
2371 s->update_requested_latency(s);
2373 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2374 if (o->update_source_requested_latency)
2375 o->update_source_requested_latency(o);
2379 pa_sink_invalidate_requested_latency(s->monitor_of, dynamic);
2382 /* Called from main thread */
2383 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2384 pa_source_assert_ref(s);
2385 pa_assert_ctl_context();
2387 /* min_latency == 0: no limit
2388 * min_latency anything else: specified limit
2390 * Similar for max_latency */
2392 if (min_latency < ABSOLUTE_MIN_LATENCY)
2393 min_latency = ABSOLUTE_MIN_LATENCY;
2395 if (max_latency <= 0 ||
2396 max_latency > ABSOLUTE_MAX_LATENCY)
2397 max_latency = ABSOLUTE_MAX_LATENCY;
2399 pa_assert(min_latency <= max_latency);
2401 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2402 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2403 max_latency == ABSOLUTE_MAX_LATENCY) ||
2404 (s->flags & PA_SOURCE_DYNAMIC_LATENCY));
2406 if (PA_SOURCE_IS_LINKED(s->state)) {
2412 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
2414 pa_source_set_latency_range_within_thread(s, min_latency, max_latency);
2417 /* Called from main thread */
2418 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
2419 pa_source_assert_ref(s);
2420 pa_assert_ctl_context();
2421 pa_assert(min_latency);
2422 pa_assert(max_latency);
2424 if (PA_SOURCE_IS_LINKED(s->state)) {
2425 pa_usec_t r[2] = { 0, 0 };
2427 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
2429 *min_latency = r[0];
2430 *max_latency = r[1];
2432 *min_latency = s->thread_info.min_latency;
2433 *max_latency = s->thread_info.max_latency;
2437 /* Called from IO thread, and from main thread before pa_source_put() is called */
2438 void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2439 pa_source_assert_ref(s);
2440 pa_source_assert_io_context(s);
2442 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
2443 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
2444 pa_assert(min_latency <= max_latency);
2446 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2447 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2448 max_latency == ABSOLUTE_MAX_LATENCY) ||
2449 (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ||
2452 if (s->thread_info.min_latency == min_latency &&
2453 s->thread_info.max_latency == max_latency)
2456 s->thread_info.min_latency = min_latency;
2457 s->thread_info.max_latency = max_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_latency_range)
2465 o->update_source_latency_range(o);
2468 pa_source_invalidate_requested_latency(s, FALSE);
2471 /* Called from main thread, before the source is put */
2472 void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency) {
2473 pa_source_assert_ref(s);
2474 pa_assert_ctl_context();
2476 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2477 pa_assert(latency == 0);
2481 if (latency < ABSOLUTE_MIN_LATENCY)
2482 latency = ABSOLUTE_MIN_LATENCY;
2484 if (latency > ABSOLUTE_MAX_LATENCY)
2485 latency = ABSOLUTE_MAX_LATENCY;
2487 if (PA_SOURCE_IS_LINKED(s->state))
2488 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
2490 s->thread_info.fixed_latency = latency;
2493 /* Called from main thread */
2494 pa_usec_t pa_source_get_fixed_latency(pa_source *s) {
2497 pa_source_assert_ref(s);
2498 pa_assert_ctl_context();
2500 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY)
2503 if (PA_SOURCE_IS_LINKED(s->state))
2504 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
2506 latency = s->thread_info.fixed_latency;
2511 /* Called from IO thread */
2512 void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency) {
2513 pa_source_assert_ref(s);
2514 pa_source_assert_io_context(s);
2516 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2517 pa_assert(latency == 0);
2521 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
2522 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
2524 if (s->thread_info.fixed_latency == latency)
2527 s->thread_info.fixed_latency = latency;
2529 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2530 pa_source_output *o;
2533 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2534 if (o->update_source_fixed_latency)
2535 o->update_source_fixed_latency(o);
2538 pa_source_invalidate_requested_latency(s, FALSE);
2541 /* Called from main thread */
2542 void pa_source_set_latency_offset(pa_source *s, int64_t offset) {
2543 pa_source_assert_ref(s);
2545 s->latency_offset = offset;
2547 if (PA_SOURCE_IS_LINKED(s->state))
2548 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET, NULL, offset, NULL) == 0);
2550 s->thread_info.latency_offset = offset;
2553 /* Called from main thread */
2554 size_t pa_source_get_max_rewind(pa_source *s) {
2556 pa_assert_ctl_context();
2557 pa_source_assert_ref(s);
2559 if (!PA_SOURCE_IS_LINKED(s->state))
2560 return s->thread_info.max_rewind;
2562 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
2567 /* Called from main context */
2568 int pa_source_set_port(pa_source *s, const char *name, pa_bool_t save) {
2569 pa_device_port *port;
2572 pa_source_assert_ref(s);
2573 pa_assert_ctl_context();
2576 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s->index, s->name);
2577 return -PA_ERR_NOTIMPLEMENTED;
2581 return -PA_ERR_NOENTITY;
2583 if (!(port = pa_hashmap_get(s->ports, name)))
2584 return -PA_ERR_NOENTITY;
2586 if (s->active_port == port) {
2587 s->save_port = s->save_port || save;
2591 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2592 struct source_message_set_port msg = { .port = port, .ret = 0 };
2593 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
2597 ret = s->set_port(s, port);
2600 return -PA_ERR_NOENTITY;
2602 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2604 pa_log_info("Changed port of source %u \"%s\" to %s", s->index, s->name, port->name);
2606 s->active_port = port;
2607 s->save_port = save;
2609 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_CHANGED], s);
2614 PA_STATIC_FLIST_DECLARE(pa_source_volume_change, 0, pa_xfree);
2616 /* Called from the IO thread. */
2617 static pa_source_volume_change *pa_source_volume_change_new(pa_source *s) {
2618 pa_source_volume_change *c;
2619 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change))))
2620 c = pa_xnew(pa_source_volume_change, 1);
2622 PA_LLIST_INIT(pa_source_volume_change, c);
2624 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
2628 /* Called from the IO thread. */
2629 static void pa_source_volume_change_free(pa_source_volume_change *c) {
2631 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change), c) < 0)
2635 /* Called from the IO thread. */
2636 void pa_source_volume_change_push(pa_source *s) {
2637 pa_source_volume_change *c = NULL;
2638 pa_source_volume_change *nc = NULL;
2639 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
2641 const char *direction = NULL;
2644 nc = pa_source_volume_change_new(s);
2646 /* NOTE: There is already more different volumes in pa_source that I can remember.
2647 * Adding one more volume for HW would get us rid of this, but I am trying
2648 * to survive with the ones we already have. */
2649 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
2651 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
2652 pa_log_debug("Volume not changing");
2653 pa_source_volume_change_free(nc);
2657 nc->at = pa_source_get_latency_within_thread(s);
2658 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
2660 if (s->thread_info.volume_changes_tail) {
2661 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
2662 /* If volume is going up let's do it a bit late. If it is going
2663 * down let's do it a bit early. */
2664 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
2665 if (nc->at + safety_margin > c->at) {
2666 nc->at += safety_margin;
2671 else if (nc->at - safety_margin > c->at) {
2672 nc->at -= safety_margin;
2680 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
2681 nc->at += safety_margin;
2684 nc->at -= safety_margin;
2687 PA_LLIST_PREPEND(pa_source_volume_change, s->thread_info.volume_changes, nc);
2690 PA_LLIST_INSERT_AFTER(pa_source_volume_change, s->thread_info.volume_changes, c, nc);
2693 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
2695 /* We can ignore volume events that came earlier but should happen later than this. */
2696 PA_LLIST_FOREACH(c, nc->next) {
2697 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
2698 pa_source_volume_change_free(c);
2701 s->thread_info.volume_changes_tail = nc;
2704 /* Called from the IO thread. */
2705 static void pa_source_volume_change_flush(pa_source *s) {
2706 pa_source_volume_change *c = s->thread_info.volume_changes;
2708 s->thread_info.volume_changes = NULL;
2709 s->thread_info.volume_changes_tail = NULL;
2711 pa_source_volume_change *next = c->next;
2712 pa_source_volume_change_free(c);
2717 /* Called from the IO thread. */
2718 pa_bool_t pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next) {
2720 pa_bool_t ret = FALSE;
2724 if (!s->thread_info.volume_changes || !PA_SOURCE_IS_LINKED(s->state)) {
2730 pa_assert(s->write_volume);
2732 now = pa_rtclock_now();
2734 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
2735 pa_source_volume_change *c = s->thread_info.volume_changes;
2736 PA_LLIST_REMOVE(pa_source_volume_change, s->thread_info.volume_changes, c);
2737 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2738 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
2740 s->thread_info.current_hw_volume = c->hw_volume;
2741 pa_source_volume_change_free(c);
2747 if (s->thread_info.volume_changes) {
2749 *usec_to_next = s->thread_info.volume_changes->at - now;
2750 if (pa_log_ratelimit(PA_LOG_DEBUG))
2751 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
2756 s->thread_info.volume_changes_tail = NULL;
2762 /* Called from the main thread */
2763 /* Gets the list of formats supported by the source. The members and idxset must
2764 * be freed by the caller. */
2765 pa_idxset* pa_source_get_formats(pa_source *s) {
2770 if (s->get_formats) {
2771 /* Source supports format query, all is good */
2772 ret = s->get_formats(s);
2774 /* Source doesn't support format query, so assume it does PCM */
2775 pa_format_info *f = pa_format_info_new();
2776 f->encoding = PA_ENCODING_PCM;
2778 ret = pa_idxset_new(NULL, NULL);
2779 pa_idxset_put(ret, f, NULL);
2785 /* Called from the main thread */
2786 /* Checks if the source can accept this format */
2787 pa_bool_t pa_source_check_format(pa_source *s, pa_format_info *f)
2789 pa_idxset *formats = NULL;
2790 pa_bool_t ret = FALSE;
2795 formats = pa_source_get_formats(s);
2798 pa_format_info *finfo_device;
2801 PA_IDXSET_FOREACH(finfo_device, formats, i) {
2802 if (pa_format_info_is_compatible(finfo_device, f)) {
2808 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
2814 /* Called from the main thread */
2815 /* Calculates the intersection between formats supported by the source and
2816 * in_formats, and returns these, in the order of the source's formats. */
2817 pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats) {
2818 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *source_formats = NULL;
2819 pa_format_info *f_source, *f_in;
2824 if (!in_formats || pa_idxset_isempty(in_formats))
2827 source_formats = pa_source_get_formats(s);
2829 PA_IDXSET_FOREACH(f_source, source_formats, i) {
2830 PA_IDXSET_FOREACH(f_in, in_formats, j) {
2831 if (pa_format_info_is_compatible(f_source, f_in))
2832 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
2838 pa_idxset_free(source_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);