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/mix.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_hashmap_free(data->ports, (pa_free_cb_t) pa_device_port_unref);
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 *s = PA_SOURCE(o);
654 pa_assert_ctl_context();
655 pa_assert(pa_source_refcnt(s) == 0);
657 if (PA_SOURCE_IS_LINKED(s->state))
660 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
662 pa_idxset_free(s->outputs, NULL);
663 pa_hashmap_free(s->thread_info.outputs, (pa_free_cb_t) pa_source_output_unref);
665 if (s->silence.memblock)
666 pa_memblock_unref(s->silence.memblock);
672 pa_proplist_free(s->proplist);
675 pa_hashmap_free(s->ports, (pa_free_cb_t) pa_device_port_unref);
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_flags_t old_flags;
691 pa_source_output *output;
694 pa_source_assert_ref(s);
695 pa_assert_ctl_context();
697 /* For now, allow only a minimal set of flags to be changed. */
698 pa_assert((mask & ~(PA_SOURCE_DYNAMIC_LATENCY|PA_SOURCE_LATENCY)) == 0);
700 old_flags = s->flags;
701 s->flags = (s->flags & ~mask) | (value & mask);
703 if (s->flags == old_flags)
706 if ((s->flags & PA_SOURCE_LATENCY) != (old_flags & PA_SOURCE_LATENCY))
707 pa_log_debug("Source %s: LATENCY flag %s.", s->name, (s->flags & PA_SOURCE_LATENCY) ? "enabled" : "disabled");
709 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY) != (old_flags & PA_SOURCE_DYNAMIC_LATENCY))
710 pa_log_debug("Source %s: DYNAMIC_LATENCY flag %s.",
711 s->name, (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ? "enabled" : "disabled");
713 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
714 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_FLAGS_CHANGED], s);
716 PA_IDXSET_FOREACH(output, s->outputs, idx) {
717 if (output->destination_source)
718 pa_source_update_flags(output->destination_source, mask, value);
722 /* Called from IO context, or before _put() from main context */
723 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
724 pa_source_assert_ref(s);
725 pa_source_assert_io_context(s);
727 s->thread_info.rtpoll = p;
730 /* Called from main context */
731 int pa_source_update_status(pa_source*s) {
732 pa_source_assert_ref(s);
733 pa_assert_ctl_context();
734 pa_assert(PA_SOURCE_IS_LINKED(s->state));
736 if (s->state == PA_SOURCE_SUSPENDED)
739 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
742 /* Called from any context - must be threadsafe */
743 void pa_source_set_mixer_dirty(pa_source *s, pa_bool_t is_dirty)
745 pa_atomic_store(&s->mixer_dirty, is_dirty ? 1 : 0);
748 /* Called from main context */
749 int pa_source_suspend(pa_source *s, pa_bool_t suspend, pa_suspend_cause_t cause) {
750 pa_source_assert_ref(s);
751 pa_assert_ctl_context();
752 pa_assert(PA_SOURCE_IS_LINKED(s->state));
753 pa_assert(cause != 0);
755 if (s->monitor_of && cause != PA_SUSPEND_PASSTHROUGH)
756 return -PA_ERR_NOTSUPPORTED;
759 s->suspend_cause |= cause;
761 s->suspend_cause &= ~cause;
763 if (!(s->suspend_cause & PA_SUSPEND_SESSION) && (pa_atomic_load(&s->mixer_dirty) != 0)) {
764 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
765 it'll be handled just fine. */
766 pa_source_set_mixer_dirty(s, FALSE);
767 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
768 if (s->active_port && s->set_port) {
769 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
770 struct source_message_set_port msg = { .port = s->active_port, .ret = 0 };
771 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
774 s->set_port(s, s->active_port);
784 if ((pa_source_get_state(s) == PA_SOURCE_SUSPENDED) == !!s->suspend_cause)
787 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s->name, s->suspend_cause, s->suspend_cause ? "suspending" : "resuming");
789 if (s->suspend_cause)
790 return source_set_state(s, PA_SOURCE_SUSPENDED);
792 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
795 /* Called from main context */
796 int pa_source_sync_suspend(pa_source *s) {
797 pa_sink_state_t state;
799 pa_source_assert_ref(s);
800 pa_assert_ctl_context();
801 pa_assert(PA_SOURCE_IS_LINKED(s->state));
802 pa_assert(s->monitor_of);
804 state = pa_sink_get_state(s->monitor_of);
806 if (state == PA_SINK_SUSPENDED)
807 return source_set_state(s, PA_SOURCE_SUSPENDED);
809 pa_assert(PA_SINK_IS_OPENED(state));
811 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
814 /* Called from main context */
815 pa_queue *pa_source_move_all_start(pa_source *s, pa_queue *q) {
816 pa_source_output *o, *n;
819 pa_source_assert_ref(s);
820 pa_assert_ctl_context();
821 pa_assert(PA_SOURCE_IS_LINKED(s->state));
826 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
827 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
829 pa_source_output_ref(o);
831 if (pa_source_output_start_move(o) >= 0)
834 pa_source_output_unref(o);
840 /* Called from main context */
841 void pa_source_move_all_finish(pa_source *s, pa_queue *q, pa_bool_t save) {
844 pa_source_assert_ref(s);
845 pa_assert_ctl_context();
846 pa_assert(PA_SOURCE_IS_LINKED(s->state));
849 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
850 if (pa_source_output_finish_move(o, s, save) < 0)
851 pa_source_output_fail_move(o);
853 pa_source_output_unref(o);
856 pa_queue_free(q, NULL);
859 /* Called from main context */
860 void pa_source_move_all_fail(pa_queue *q) {
863 pa_assert_ctl_context();
866 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
867 pa_source_output_fail_move(o);
868 pa_source_output_unref(o);
871 pa_queue_free(q, NULL);
874 /* Called from IO thread context */
875 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
879 pa_source_assert_ref(s);
880 pa_source_assert_io_context(s);
881 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
886 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
889 pa_log_debug("Processing rewind...");
891 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
892 pa_source_output_assert_ref(o);
893 pa_source_output_process_rewind(o, nbytes);
897 /* Called from IO thread context */
898 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
902 pa_source_assert_ref(s);
903 pa_source_assert_io_context(s);
904 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
907 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
910 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
911 pa_memchunk vchunk = *chunk;
913 pa_memblock_ref(vchunk.memblock);
914 pa_memchunk_make_writable(&vchunk, 0);
916 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
917 pa_silence_memchunk(&vchunk, &s->sample_spec);
919 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
921 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
922 pa_source_output_assert_ref(o);
924 if (!o->thread_info.direct_on_input)
925 pa_source_output_push(o, &vchunk);
928 pa_memblock_unref(vchunk.memblock);
931 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
932 pa_source_output_assert_ref(o);
934 if (!o->thread_info.direct_on_input)
935 pa_source_output_push(o, chunk);
940 /* Called from IO thread context */
941 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
942 pa_source_assert_ref(s);
943 pa_source_assert_io_context(s);
944 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
945 pa_source_output_assert_ref(o);
946 pa_assert(o->thread_info.direct_on_input);
949 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
952 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
953 pa_memchunk vchunk = *chunk;
955 pa_memblock_ref(vchunk.memblock);
956 pa_memchunk_make_writable(&vchunk, 0);
958 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
959 pa_silence_memchunk(&vchunk, &s->sample_spec);
961 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
963 pa_source_output_push(o, &vchunk);
965 pa_memblock_unref(vchunk.memblock);
967 pa_source_output_push(o, chunk);
970 /* Called from main thread */
971 pa_bool_t pa_source_update_rate(pa_source *s, uint32_t rate, pa_bool_t passthrough)
973 if (s->update_rate) {
974 uint32_t desired_rate = rate;
975 uint32_t default_rate = s->default_sample_rate;
976 uint32_t alternate_rate = s->alternate_sample_rate;
979 pa_bool_t use_alternate = FALSE;
981 if (PA_UNLIKELY(default_rate == alternate_rate)) {
982 pa_log_warn("Default and alternate sample rates are the same.");
986 if (PA_SOURCE_IS_RUNNING(s->state)) {
987 pa_log_info("Cannot update rate, SOURCE_IS_RUNNING, will keep using %u Hz",
988 s->sample_spec.rate);
992 if (PA_UNLIKELY (desired_rate < 8000 ||
993 desired_rate > PA_RATE_MAX))
997 pa_assert(default_rate % 4000 || default_rate % 11025);
998 pa_assert(alternate_rate % 4000 || alternate_rate % 11025);
1000 if (default_rate % 4000) {
1001 /* default is a 11025 multiple */
1002 if ((alternate_rate % 4000 == 0) && (desired_rate % 4000 == 0))
1005 /* default is 4000 multiple */
1006 if ((alternate_rate % 11025 == 0) && (desired_rate % 11025 == 0))
1011 desired_rate = alternate_rate;
1013 desired_rate = default_rate;
1015 desired_rate = rate; /* use stream sampling rate, discard default/alternate settings */
1018 if (desired_rate == s->sample_spec.rate)
1021 if (!passthrough && pa_source_used_by(s) > 0)
1024 pa_log_debug("Suspending source %s due to changing the sample rate.", s->name);
1025 pa_source_suspend(s, TRUE, PA_SUSPEND_IDLE); /* needed before rate update, will be resumed automatically */
1027 if (s->update_rate(s, desired_rate) == TRUE) {
1028 pa_log_info("Changed sampling rate successfully ");
1030 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1031 if (o->state == PA_SOURCE_OUTPUT_CORKED)
1032 pa_source_output_update_rate(o);
1040 /* Called from main thread */
1041 pa_usec_t pa_source_get_latency(pa_source *s) {
1044 pa_source_assert_ref(s);
1045 pa_assert_ctl_context();
1046 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1048 if (s->state == PA_SOURCE_SUSPENDED)
1051 if (!(s->flags & PA_SOURCE_LATENCY))
1054 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
1056 /* usec is unsigned, so check that the offset can be added to usec without
1058 if (-s->latency_offset <= (int64_t) usec)
1059 usec += s->latency_offset;
1066 /* Called from IO thread */
1067 pa_usec_t pa_source_get_latency_within_thread(pa_source *s) {
1071 pa_source_assert_ref(s);
1072 pa_source_assert_io_context(s);
1073 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
1075 /* The returned value is supposed to be in the time domain of the sound card! */
1077 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
1080 if (!(s->flags & PA_SOURCE_LATENCY))
1083 o = PA_MSGOBJECT(s);
1085 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1087 if (o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
1090 /* usec is unsigned, so check that the offset can be added to usec without
1092 if (-s->thread_info.latency_offset <= (int64_t) usec)
1093 usec += s->thread_info.latency_offset;
1100 /* Called from the main thread (and also from the IO thread while the main
1101 * thread is waiting).
1103 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
1104 * set. Instead, flat volume mode is detected by checking whether the root source
1105 * has the flag set. */
1106 pa_bool_t pa_source_flat_volume_enabled(pa_source *s) {
1107 pa_source_assert_ref(s);
1109 s = pa_source_get_master(s);
1112 return (s->flags & PA_SOURCE_FLAT_VOLUME);
1117 /* Called from the main thread (and also from the IO thread while the main
1118 * thread is waiting). */
1119 pa_source *pa_source_get_master(pa_source *s) {
1120 pa_source_assert_ref(s);
1122 while (s && (s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1123 if (PA_UNLIKELY(!s->output_from_master))
1126 s = s->output_from_master->source;
1132 /* Called from main context */
1133 pa_bool_t pa_source_is_passthrough(pa_source *s) {
1135 pa_source_assert_ref(s);
1137 /* NB Currently only monitor sources support passthrough mode */
1138 return (s->monitor_of && pa_sink_is_passthrough(s->monitor_of));
1141 /* Called from main context */
1142 void pa_source_enter_passthrough(pa_source *s) {
1145 /* set the volume to NORM */
1146 s->saved_volume = *pa_source_get_volume(s, TRUE);
1147 s->saved_save_volume = s->save_volume;
1149 pa_cvolume_set(&volume, s->sample_spec.channels, PA_MIN(s->base_volume, PA_VOLUME_NORM));
1150 pa_source_set_volume(s, &volume, TRUE, FALSE);
1153 /* Called from main context */
1154 void pa_source_leave_passthrough(pa_source *s) {
1155 /* Restore source volume to what it was before we entered passthrough mode */
1156 pa_source_set_volume(s, &s->saved_volume, TRUE, s->saved_save_volume);
1158 pa_cvolume_init(&s->saved_volume);
1159 s->saved_save_volume = FALSE;
1162 /* Called from main context. */
1163 static void compute_reference_ratio(pa_source_output *o) {
1165 pa_cvolume remapped;
1168 pa_assert(pa_source_flat_volume_enabled(o->source));
1171 * Calculates the reference ratio from the source's reference
1172 * volume. This basically calculates:
1174 * o->reference_ratio = o->volume / o->source->reference_volume
1177 remapped = o->source->reference_volume;
1178 pa_cvolume_remap(&remapped, &o->source->channel_map, &o->channel_map);
1180 o->reference_ratio.channels = o->sample_spec.channels;
1182 for (c = 0; c < o->sample_spec.channels; c++) {
1184 /* We don't update when the source volume is 0 anyway */
1185 if (remapped.values[c] <= PA_VOLUME_MUTED)
1188 /* Don't update the reference ratio unless necessary */
1189 if (pa_sw_volume_multiply(
1190 o->reference_ratio.values[c],
1191 remapped.values[c]) == o->volume.values[c])
1194 o->reference_ratio.values[c] = pa_sw_volume_divide(
1195 o->volume.values[c],
1196 remapped.values[c]);
1200 /* Called from main context. Only called for the root source in volume sharing
1201 * cases, except for internal recursive calls. */
1202 static void compute_reference_ratios(pa_source *s) {
1204 pa_source_output *o;
1206 pa_source_assert_ref(s);
1207 pa_assert_ctl_context();
1208 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1209 pa_assert(pa_source_flat_volume_enabled(s));
1211 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1212 compute_reference_ratio(o);
1214 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1215 compute_reference_ratios(o->destination_source);
1219 /* Called from main context. Only called for the root source in volume sharing
1220 * cases, except for internal recursive calls. */
1221 static void compute_real_ratios(pa_source *s) {
1222 pa_source_output *o;
1225 pa_source_assert_ref(s);
1226 pa_assert_ctl_context();
1227 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1228 pa_assert(pa_source_flat_volume_enabled(s));
1230 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1232 pa_cvolume remapped;
1234 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1235 /* The origin source uses volume sharing, so this input's real ratio
1236 * is handled as a special case - the real ratio must be 0 dB, and
1237 * as a result i->soft_volume must equal i->volume_factor. */
1238 pa_cvolume_reset(&o->real_ratio, o->real_ratio.channels);
1239 o->soft_volume = o->volume_factor;
1241 compute_real_ratios(o->destination_source);
1247 * This basically calculates:
1249 * i->real_ratio := i->volume / s->real_volume
1250 * i->soft_volume := i->real_ratio * i->volume_factor
1253 remapped = s->real_volume;
1254 pa_cvolume_remap(&remapped, &s->channel_map, &o->channel_map);
1256 o->real_ratio.channels = o->sample_spec.channels;
1257 o->soft_volume.channels = o->sample_spec.channels;
1259 for (c = 0; c < o->sample_spec.channels; c++) {
1261 if (remapped.values[c] <= PA_VOLUME_MUTED) {
1262 /* We leave o->real_ratio untouched */
1263 o->soft_volume.values[c] = PA_VOLUME_MUTED;
1267 /* Don't lose accuracy unless necessary */
1268 if (pa_sw_volume_multiply(
1269 o->real_ratio.values[c],
1270 remapped.values[c]) != o->volume.values[c])
1272 o->real_ratio.values[c] = pa_sw_volume_divide(
1273 o->volume.values[c],
1274 remapped.values[c]);
1276 o->soft_volume.values[c] = pa_sw_volume_multiply(
1277 o->real_ratio.values[c],
1278 o->volume_factor.values[c]);
1281 /* We don't copy the soft_volume to the thread_info data
1282 * here. That must be done by the caller */
1286 static pa_cvolume *cvolume_remap_minimal_impact(
1288 const pa_cvolume *template,
1289 const pa_channel_map *from,
1290 const pa_channel_map *to) {
1295 pa_assert(template);
1298 pa_assert(pa_cvolume_compatible_with_channel_map(v, from));
1299 pa_assert(pa_cvolume_compatible_with_channel_map(template, to));
1301 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1302 * mapping from source output to source volumes:
1304 * If template is a possible remapping from v it is used instead
1305 * of remapping anew.
1307 * If the channel maps don't match we set an all-channel volume on
1308 * the source to ensure that changing a volume on one stream has no
1309 * effect that cannot be compensated for in another stream that
1310 * does not have the same channel map as the source. */
1312 if (pa_channel_map_equal(from, to))
1316 if (pa_cvolume_equal(pa_cvolume_remap(&t, to, from), v)) {
1321 pa_cvolume_set(v, to->channels, pa_cvolume_max(v));
1325 /* Called from main thread. Only called for the root source in volume sharing
1326 * cases, except for internal recursive calls. */
1327 static void get_maximum_output_volume(pa_source *s, pa_cvolume *max_volume, const pa_channel_map *channel_map) {
1328 pa_source_output *o;
1331 pa_source_assert_ref(s);
1332 pa_assert(max_volume);
1333 pa_assert(channel_map);
1334 pa_assert(pa_source_flat_volume_enabled(s));
1336 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1337 pa_cvolume remapped;
1339 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1340 get_maximum_output_volume(o->destination_source, max_volume, channel_map);
1342 /* Ignore this output. The origin source uses volume sharing, so this
1343 * output's volume will be set to be equal to the root source's real
1344 * volume. Obviously this output's current volume must not then
1345 * affect what the root source's real volume will be. */
1349 remapped = o->volume;
1350 cvolume_remap_minimal_impact(&remapped, max_volume, &o->channel_map, channel_map);
1351 pa_cvolume_merge(max_volume, max_volume, &remapped);
1355 /* Called from main thread. Only called for the root source in volume sharing
1356 * cases, except for internal recursive calls. */
1357 static pa_bool_t has_outputs(pa_source *s) {
1358 pa_source_output *o;
1361 pa_source_assert_ref(s);
1363 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1364 if (!o->destination_source || !(o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER) || has_outputs(o->destination_source))
1371 /* Called from main thread. Only called for the root source in volume sharing
1372 * cases, except for internal recursive calls. */
1373 static void update_real_volume(pa_source *s, const pa_cvolume *new_volume, pa_channel_map *channel_map) {
1374 pa_source_output *o;
1377 pa_source_assert_ref(s);
1378 pa_assert(new_volume);
1379 pa_assert(channel_map);
1381 s->real_volume = *new_volume;
1382 pa_cvolume_remap(&s->real_volume, channel_map, &s->channel_map);
1384 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1385 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1386 if (pa_source_flat_volume_enabled(s)) {
1387 pa_cvolume old_volume = o->volume;
1389 /* Follow the root source's real volume. */
1390 o->volume = *new_volume;
1391 pa_cvolume_remap(&o->volume, channel_map, &o->channel_map);
1392 compute_reference_ratio(o);
1394 /* The volume changed, let's tell people so */
1395 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1396 if (o->volume_changed)
1397 o->volume_changed(o);
1399 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1403 update_real_volume(o->destination_source, new_volume, channel_map);
1408 /* Called from main thread. Only called for the root source in shared volume
1410 static void compute_real_volume(pa_source *s) {
1411 pa_source_assert_ref(s);
1412 pa_assert_ctl_context();
1413 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1414 pa_assert(pa_source_flat_volume_enabled(s));
1415 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1417 /* This determines the maximum volume of all streams and sets
1418 * s->real_volume accordingly. */
1420 if (!has_outputs(s)) {
1421 /* In the special case that we have no source outputs we leave the
1422 * volume unmodified. */
1423 update_real_volume(s, &s->reference_volume, &s->channel_map);
1427 pa_cvolume_mute(&s->real_volume, s->channel_map.channels);
1429 /* First let's determine the new maximum volume of all outputs
1430 * connected to this source */
1431 get_maximum_output_volume(s, &s->real_volume, &s->channel_map);
1432 update_real_volume(s, &s->real_volume, &s->channel_map);
1434 /* Then, let's update the real ratios/soft volumes of all outputs
1435 * connected to this source */
1436 compute_real_ratios(s);
1439 /* Called from main thread. Only called for the root source in shared volume
1440 * cases, except for internal recursive calls. */
1441 static void propagate_reference_volume(pa_source *s) {
1442 pa_source_output *o;
1445 pa_source_assert_ref(s);
1446 pa_assert_ctl_context();
1447 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1448 pa_assert(pa_source_flat_volume_enabled(s));
1450 /* This is called whenever the source volume changes that is not
1451 * caused by a source output volume change. We need to fix up the
1452 * source output volumes accordingly */
1454 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1455 pa_cvolume old_volume;
1457 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1458 propagate_reference_volume(o->destination_source);
1460 /* Since the origin source uses volume sharing, this output's volume
1461 * needs to be updated to match the root source's real volume, but
1462 * that will be done later in update_shared_real_volume(). */
1466 old_volume = o->volume;
1468 /* This basically calculates:
1470 * o->volume := o->reference_volume * o->reference_ratio */
1472 o->volume = s->reference_volume;
1473 pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
1474 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1476 /* The volume changed, let's tell people so */
1477 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1479 if (o->volume_changed)
1480 o->volume_changed(o);
1482 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1487 /* Called from main thread. Only called for the root source in volume sharing
1488 * cases, except for internal recursive calls. The return value indicates
1489 * whether any reference volume actually changed. */
1490 static pa_bool_t update_reference_volume(pa_source *s, const pa_cvolume *v, const pa_channel_map *channel_map, pa_bool_t save) {
1492 pa_bool_t reference_volume_changed;
1493 pa_source_output *o;
1496 pa_source_assert_ref(s);
1497 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1499 pa_assert(channel_map);
1500 pa_assert(pa_cvolume_valid(v));
1503 pa_cvolume_remap(&volume, channel_map, &s->channel_map);
1505 reference_volume_changed = !pa_cvolume_equal(&volume, &s->reference_volume);
1506 s->reference_volume = volume;
1508 s->save_volume = (!reference_volume_changed && s->save_volume) || save;
1510 if (reference_volume_changed)
1511 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1512 else if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1513 /* If the root source's volume doesn't change, then there can't be any
1514 * changes in the other source in the source tree either.
1516 * It's probably theoretically possible that even if the root source's
1517 * volume changes slightly, some filter source doesn't change its volume
1518 * due to rounding errors. If that happens, we still want to propagate
1519 * the changed root source volume to the sources connected to the
1520 * intermediate source that didn't change its volume. This theoretical
1521 * possibility is the reason why we have that !(s->flags &
1522 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1523 * notice even if we returned here FALSE always if
1524 * reference_volume_changed is FALSE. */
1527 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1528 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1529 update_reference_volume(o->destination_source, v, channel_map, FALSE);
1535 /* Called from main thread */
1536 void pa_source_set_volume(
1538 const pa_cvolume *volume,
1542 pa_cvolume new_reference_volume;
1543 pa_source *root_source;
1545 pa_source_assert_ref(s);
1546 pa_assert_ctl_context();
1547 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1548 pa_assert(!volume || pa_cvolume_valid(volume));
1549 pa_assert(volume || pa_source_flat_volume_enabled(s));
1550 pa_assert(!volume || volume->channels == 1 || pa_cvolume_compatible(volume, &s->sample_spec));
1552 /* make sure we don't change the volume in PASSTHROUGH mode ...
1553 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1554 if (pa_source_is_passthrough(s) && (!volume || !pa_cvolume_is_norm(volume))) {
1555 pa_log_warn("Cannot change volume, source is monitor of a PASSTHROUGH sink");
1559 /* In case of volume sharing, the volume is set for the root source first,
1560 * from which it's then propagated to the sharing sources. */
1561 root_source = pa_source_get_master(s);
1563 if (PA_UNLIKELY(!root_source))
1566 /* As a special exception we accept mono volumes on all sources --
1567 * even on those with more complex channel maps */
1570 if (pa_cvolume_compatible(volume, &s->sample_spec))
1571 new_reference_volume = *volume;
1573 new_reference_volume = s->reference_volume;
1574 pa_cvolume_scale(&new_reference_volume, pa_cvolume_max(volume));
1577 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1579 if (update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save)) {
1580 if (pa_source_flat_volume_enabled(root_source)) {
1581 /* OK, propagate this volume change back to the outputs */
1582 propagate_reference_volume(root_source);
1584 /* And now recalculate the real volume */
1585 compute_real_volume(root_source);
1587 update_real_volume(root_source, &root_source->reference_volume, &root_source->channel_map);
1591 /* If volume is NULL we synchronize the source's real and
1592 * reference volumes with the stream volumes. */
1594 pa_assert(pa_source_flat_volume_enabled(root_source));
1596 /* Ok, let's determine the new real volume */
1597 compute_real_volume(root_source);
1599 /* Let's 'push' the reference volume if necessary */
1600 pa_cvolume_merge(&new_reference_volume, &s->reference_volume, &root_source->real_volume);
1601 /* If the source and it's root don't have the same number of channels, we need to remap */
1602 if (s != root_source && !pa_channel_map_equal(&s->channel_map, &root_source->channel_map))
1603 pa_cvolume_remap(&new_reference_volume, &s->channel_map, &root_source->channel_map);
1604 update_reference_volume(root_source, &new_reference_volume, &root_source->channel_map, save);
1606 /* Now that the reference volume is updated, we can update the streams'
1607 * reference ratios. */
1608 compute_reference_ratios(root_source);
1611 if (root_source->set_volume) {
1612 /* If we have a function set_volume(), then we do not apply a
1613 * soft volume by default. However, set_volume() is free to
1614 * apply one to root_source->soft_volume */
1616 pa_cvolume_reset(&root_source->soft_volume, root_source->sample_spec.channels);
1617 if (!(root_source->flags & PA_SOURCE_DEFERRED_VOLUME))
1618 root_source->set_volume(root_source);
1621 /* If we have no function set_volume(), then the soft volume
1622 * becomes the real volume */
1623 root_source->soft_volume = root_source->real_volume;
1625 /* This tells the source that soft volume and/or real volume changed */
1627 pa_assert_se(pa_asyncmsgq_send(root_source->asyncmsgq, PA_MSGOBJECT(root_source), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL) == 0);
1630 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1631 * Only to be called by source implementor */
1632 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
1634 pa_source_assert_ref(s);
1635 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1637 if (s->flags & PA_SOURCE_DEFERRED_VOLUME)
1638 pa_source_assert_io_context(s);
1640 pa_assert_ctl_context();
1643 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
1645 s->soft_volume = *volume;
1647 if (PA_SOURCE_IS_LINKED(s->state) && !(s->flags & PA_SOURCE_DEFERRED_VOLUME))
1648 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
1650 s->thread_info.soft_volume = s->soft_volume;
1653 /* Called from the main thread. Only called for the root source in volume sharing
1654 * cases, except for internal recursive calls. */
1655 static void propagate_real_volume(pa_source *s, const pa_cvolume *old_real_volume) {
1656 pa_source_output *o;
1659 pa_source_assert_ref(s);
1660 pa_assert(old_real_volume);
1661 pa_assert_ctl_context();
1662 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1664 /* This is called when the hardware's real volume changes due to
1665 * some external event. We copy the real volume into our
1666 * reference volume and then rebuild the stream volumes based on
1667 * i->real_ratio which should stay fixed. */
1669 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1670 if (pa_cvolume_equal(old_real_volume, &s->real_volume))
1673 /* 1. Make the real volume the reference volume */
1674 update_reference_volume(s, &s->real_volume, &s->channel_map, TRUE);
1677 if (pa_source_flat_volume_enabled(s)) {
1679 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1680 pa_cvolume old_volume = o->volume;
1682 /* 2. Since the source's reference and real volumes are equal
1683 * now our ratios should be too. */
1684 o->reference_ratio = o->real_ratio;
1686 /* 3. Recalculate the new stream reference volume based on the
1687 * reference ratio and the sink's reference volume.
1689 * This basically calculates:
1691 * o->volume = s->reference_volume * o->reference_ratio
1693 * This is identical to propagate_reference_volume() */
1694 o->volume = s->reference_volume;
1695 pa_cvolume_remap(&o->volume, &s->channel_map, &o->channel_map);
1696 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1698 /* Notify if something changed */
1699 if (!pa_cvolume_equal(&old_volume, &o->volume)) {
1701 if (o->volume_changed)
1702 o->volume_changed(o);
1704 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1707 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1708 propagate_real_volume(o->destination_source, old_real_volume);
1712 /* Something got changed in the hardware. It probably makes sense
1713 * to save changed hw settings given that hw volume changes not
1714 * triggered by PA are almost certainly done by the user. */
1715 if (!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1716 s->save_volume = TRUE;
1719 /* Called from io thread */
1720 void pa_source_update_volume_and_mute(pa_source *s) {
1722 pa_source_assert_io_context(s);
1724 pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE, NULL, 0, NULL, NULL);
1727 /* Called from main thread */
1728 const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
1729 pa_source_assert_ref(s);
1730 pa_assert_ctl_context();
1731 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1733 if (s->refresh_volume || force_refresh) {
1734 struct pa_cvolume old_real_volume;
1736 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1738 old_real_volume = s->real_volume;
1740 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume)
1743 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
1745 update_real_volume(s, &s->real_volume, &s->channel_map);
1746 propagate_real_volume(s, &old_real_volume);
1749 return &s->reference_volume;
1752 /* Called from main thread. In volume sharing cases, only the root source may
1754 void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_real_volume) {
1755 pa_cvolume old_real_volume;
1757 pa_source_assert_ref(s);
1758 pa_assert_ctl_context();
1759 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1760 pa_assert(!(s->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER));
1762 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1764 old_real_volume = s->real_volume;
1765 update_real_volume(s, new_real_volume, &s->channel_map);
1766 propagate_real_volume(s, &old_real_volume);
1769 /* Called from main thread */
1770 void pa_source_set_mute(pa_source *s, pa_bool_t mute, pa_bool_t save) {
1771 pa_bool_t old_muted;
1773 pa_source_assert_ref(s);
1774 pa_assert_ctl_context();
1775 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1777 old_muted = s->muted;
1779 s->save_muted = (old_muted == s->muted && s->save_muted) || save;
1781 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->set_mute)
1784 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1786 if (old_muted != s->muted)
1787 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1790 /* Called from main thread */
1791 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
1793 pa_source_assert_ref(s);
1794 pa_assert_ctl_context();
1795 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1797 if (s->refresh_muted || force_refresh) {
1798 pa_bool_t old_muted = s->muted;
1800 if (!(s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_mute)
1803 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
1805 if (old_muted != s->muted) {
1806 s->save_muted = TRUE;
1808 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1810 /* Make sure the soft mute status stays in sync */
1811 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
1818 /* Called from main thread */
1819 void pa_source_mute_changed(pa_source *s, pa_bool_t new_muted) {
1820 pa_source_assert_ref(s);
1821 pa_assert_ctl_context();
1822 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1824 /* The source implementor may call this if the mute state changed to make sure everyone is notified */
1826 if (s->muted == new_muted)
1829 s->muted = new_muted;
1830 s->save_muted = TRUE;
1832 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1835 /* Called from main thread */
1836 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
1837 pa_source_assert_ref(s);
1838 pa_assert_ctl_context();
1841 pa_proplist_update(s->proplist, mode, p);
1843 if (PA_SOURCE_IS_LINKED(s->state)) {
1844 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1845 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1851 /* Called from main thread */
1852 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1853 void pa_source_set_description(pa_source *s, const char *description) {
1855 pa_source_assert_ref(s);
1856 pa_assert_ctl_context();
1858 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
1861 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1863 if (old && description && pa_streq(old, description))
1867 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
1869 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
1871 if (PA_SOURCE_IS_LINKED(s->state)) {
1872 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
1873 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
1877 /* Called from main thread */
1878 unsigned pa_source_linked_by(pa_source *s) {
1879 pa_source_assert_ref(s);
1880 pa_assert_ctl_context();
1881 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1883 return pa_idxset_size(s->outputs);
1886 /* Called from main thread */
1887 unsigned pa_source_used_by(pa_source *s) {
1890 pa_source_assert_ref(s);
1891 pa_assert_ctl_context();
1892 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1894 ret = pa_idxset_size(s->outputs);
1895 pa_assert(ret >= s->n_corked);
1897 return ret - s->n_corked;
1900 /* Called from main thread */
1901 unsigned pa_source_check_suspend(pa_source *s) {
1903 pa_source_output *o;
1906 pa_source_assert_ref(s);
1907 pa_assert_ctl_context();
1909 if (!PA_SOURCE_IS_LINKED(s->state))
1914 PA_IDXSET_FOREACH(o, s->outputs, idx) {
1915 pa_source_output_state_t st;
1917 st = pa_source_output_get_state(o);
1919 /* We do not assert here. It is perfectly valid for a source output to
1920 * be in the INIT state (i.e. created, marked done but not yet put)
1921 * and we should not care if it's unlinked as it won't contribute
1922 * towards our busy status.
1924 if (!PA_SOURCE_OUTPUT_IS_LINKED(st))
1927 if (st == PA_SOURCE_OUTPUT_CORKED)
1930 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
1939 /* Called from the IO thread */
1940 static void sync_output_volumes_within_thread(pa_source *s) {
1941 pa_source_output *o;
1944 pa_source_assert_ref(s);
1945 pa_source_assert_io_context(s);
1947 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
1948 if (pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume))
1951 o->thread_info.soft_volume = o->soft_volume;
1952 //pa_source_output_request_rewind(o, 0, TRUE, FALSE, FALSE);
1956 /* Called from the IO thread. Only called for the root source in volume sharing
1957 * cases, except for internal recursive calls. */
1958 static void set_shared_volume_within_thread(pa_source *s) {
1959 pa_source_output *o;
1962 pa_source_assert_ref(s);
1964 PA_MSGOBJECT(s)->process_msg(PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED, NULL, 0, NULL);
1966 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state) {
1967 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
1968 set_shared_volume_within_thread(o->destination_source);
1972 /* Called from IO thread, except when it is not */
1973 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1974 pa_source *s = PA_SOURCE(object);
1975 pa_source_assert_ref(s);
1977 switch ((pa_source_message_t) code) {
1979 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
1980 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
1982 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
1984 if (o->direct_on_input) {
1985 o->thread_info.direct_on_input = o->direct_on_input;
1986 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
1989 pa_assert(!o->thread_info.attached);
1990 o->thread_info.attached = TRUE;
1995 pa_source_output_set_state_within_thread(o, o->state);
1997 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
1998 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
2000 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2002 /* We don't just invalidate the requested latency here,
2003 * because if we are in a move we might need to fix up the
2004 * requested latency. */
2005 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
2007 /* In flat volume mode we need to update the volume as
2009 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2012 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
2013 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
2015 pa_source_output_set_state_within_thread(o, o->state);
2020 pa_assert(o->thread_info.attached);
2021 o->thread_info.attached = FALSE;
2023 if (o->thread_info.direct_on_input) {
2024 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
2025 o->thread_info.direct_on_input = NULL;
2028 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
2029 pa_source_output_unref(o);
2031 pa_source_invalidate_requested_latency(s, TRUE);
2033 /* In flat volume mode we need to update the volume as
2035 return object->process_msg(object, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME, NULL, 0, NULL);
2038 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME: {
2039 pa_source *root_source = pa_source_get_master(s);
2041 if (PA_LIKELY(root_source))
2042 set_shared_volume_within_thread(root_source);
2047 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED:
2049 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2051 pa_source_volume_change_push(s);
2053 /* Fall through ... */
2055 case PA_SOURCE_MESSAGE_SET_VOLUME:
2057 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2058 s->thread_info.soft_volume = s->soft_volume;
2061 /* Fall through ... */
2063 case PA_SOURCE_MESSAGE_SYNC_VOLUMES:
2064 sync_output_volumes_within_thread(s);
2067 case PA_SOURCE_MESSAGE_GET_VOLUME:
2069 if ((s->flags & PA_SOURCE_DEFERRED_VOLUME) && s->get_volume) {
2071 pa_source_volume_change_flush(s);
2072 pa_sw_cvolume_divide(&s->thread_info.current_hw_volume, &s->real_volume, &s->soft_volume);
2075 /* In case source implementor reset SW volume. */
2076 if (!pa_cvolume_equal(&s->thread_info.soft_volume, &s->soft_volume)) {
2077 s->thread_info.soft_volume = s->soft_volume;
2082 case PA_SOURCE_MESSAGE_SET_MUTE:
2084 if (s->thread_info.soft_muted != s->muted) {
2085 s->thread_info.soft_muted = s->muted;
2088 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->set_mute)
2093 case PA_SOURCE_MESSAGE_GET_MUTE:
2095 if (s->flags & PA_SOURCE_DEFERRED_VOLUME && s->get_mute)
2100 case PA_SOURCE_MESSAGE_SET_STATE: {
2102 pa_bool_t suspend_change =
2103 (s->thread_info.state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata))) ||
2104 (PA_SOURCE_IS_OPENED(s->thread_info.state) && PA_PTR_TO_UINT(userdata) == PA_SOURCE_SUSPENDED);
2106 s->thread_info.state = PA_PTR_TO_UINT(userdata);
2108 if (suspend_change) {
2109 pa_source_output *o;
2112 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2113 if (o->suspend_within_thread)
2114 o->suspend_within_thread(o, s->thread_info.state == PA_SOURCE_SUSPENDED);
2120 case PA_SOURCE_MESSAGE_DETACH:
2122 /* Detach all streams */
2123 pa_source_detach_within_thread(s);
2126 case PA_SOURCE_MESSAGE_ATTACH:
2128 /* Reattach all streams */
2129 pa_source_attach_within_thread(s);
2132 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
2134 pa_usec_t *usec = userdata;
2135 *usec = pa_source_get_requested_latency_within_thread(s);
2137 /* Yes, that's right, the IO thread will see -1 when no
2138 * explicit requested latency is configured, the main
2139 * thread will see max_latency */
2140 if (*usec == (pa_usec_t) -1)
2141 *usec = s->thread_info.max_latency;
2146 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
2147 pa_usec_t *r = userdata;
2149 pa_source_set_latency_range_within_thread(s, r[0], r[1]);
2154 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
2155 pa_usec_t *r = userdata;
2157 r[0] = s->thread_info.min_latency;
2158 r[1] = s->thread_info.max_latency;
2163 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY:
2165 *((pa_usec_t*) userdata) = s->thread_info.fixed_latency;
2168 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY:
2170 pa_source_set_fixed_latency_within_thread(s, (pa_usec_t) offset);
2173 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
2175 *((size_t*) userdata) = s->thread_info.max_rewind;
2178 case PA_SOURCE_MESSAGE_SET_MAX_REWIND:
2180 pa_source_set_max_rewind_within_thread(s, (size_t) offset);
2183 case PA_SOURCE_MESSAGE_GET_LATENCY:
2185 if (s->monitor_of) {
2186 *((pa_usec_t*) userdata) = 0;
2190 /* Implementors need to overwrite this implementation! */
2193 case PA_SOURCE_MESSAGE_SET_PORT:
2195 pa_assert(userdata);
2197 struct source_message_set_port *msg_data = userdata;
2198 msg_data->ret = s->set_port(s, msg_data->port);
2202 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE:
2203 /* This message is sent from IO-thread and handled in main thread. */
2204 pa_assert_ctl_context();
2206 /* Make sure we're not messing with main thread when no longer linked */
2207 if (!PA_SOURCE_IS_LINKED(s->state))
2210 pa_source_get_volume(s, TRUE);
2211 pa_source_get_mute(s, TRUE);
2214 case PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET:
2215 s->thread_info.latency_offset = offset;
2218 case PA_SOURCE_MESSAGE_MAX:
2225 /* Called from main thread */
2226 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend, pa_suspend_cause_t cause) {
2231 pa_core_assert_ref(c);
2232 pa_assert_ctl_context();
2233 pa_assert(cause != 0);
2235 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx))) {
2238 if (source->monitor_of)
2241 if ((r = pa_source_suspend(source, suspend, cause)) < 0)
2248 /* Called from main thread */
2249 void pa_source_detach(pa_source *s) {
2250 pa_source_assert_ref(s);
2251 pa_assert_ctl_context();
2252 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2254 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
2257 /* Called from main thread */
2258 void pa_source_attach(pa_source *s) {
2259 pa_source_assert_ref(s);
2260 pa_assert_ctl_context();
2261 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2263 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
2266 /* Called from IO thread */
2267 void pa_source_detach_within_thread(pa_source *s) {
2268 pa_source_output *o;
2271 pa_source_assert_ref(s);
2272 pa_source_assert_io_context(s);
2273 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2275 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2280 /* Called from IO thread */
2281 void pa_source_attach_within_thread(pa_source *s) {
2282 pa_source_output *o;
2285 pa_source_assert_ref(s);
2286 pa_source_assert_io_context(s);
2287 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
2289 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2294 /* Called from IO thread */
2295 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
2296 pa_usec_t result = (pa_usec_t) -1;
2297 pa_source_output *o;
2300 pa_source_assert_ref(s);
2301 pa_source_assert_io_context(s);
2303 if (!(s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2304 return PA_CLAMP(s->thread_info.fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
2306 if (s->thread_info.requested_latency_valid)
2307 return s->thread_info.requested_latency;
2309 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2310 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
2311 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
2312 result = o->thread_info.requested_source_latency;
2314 if (result != (pa_usec_t) -1)
2315 result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
2317 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2318 /* Only cache this if we are fully set up */
2319 s->thread_info.requested_latency = result;
2320 s->thread_info.requested_latency_valid = TRUE;
2326 /* Called from main thread */
2327 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
2330 pa_source_assert_ref(s);
2331 pa_assert_ctl_context();
2332 pa_assert(PA_SOURCE_IS_LINKED(s->state));
2334 if (s->state == PA_SOURCE_SUSPENDED)
2337 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
2342 /* Called from IO thread */
2343 void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind) {
2344 pa_source_output *o;
2347 pa_source_assert_ref(s);
2348 pa_source_assert_io_context(s);
2350 if (max_rewind == s->thread_info.max_rewind)
2353 s->thread_info.max_rewind = max_rewind;
2355 if (PA_SOURCE_IS_LINKED(s->thread_info.state))
2356 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2357 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
2360 /* Called from main thread */
2361 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
2362 pa_source_assert_ref(s);
2363 pa_assert_ctl_context();
2365 if (PA_SOURCE_IS_LINKED(s->state))
2366 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
2368 pa_source_set_max_rewind_within_thread(s, max_rewind);
2371 /* Called from IO thread */
2372 void pa_source_invalidate_requested_latency(pa_source *s, pa_bool_t dynamic) {
2373 pa_source_output *o;
2376 pa_source_assert_ref(s);
2377 pa_source_assert_io_context(s);
2379 if ((s->flags & PA_SOURCE_DYNAMIC_LATENCY))
2380 s->thread_info.requested_latency_valid = FALSE;
2384 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2386 if (s->update_requested_latency)
2387 s->update_requested_latency(s);
2389 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
2390 if (o->update_source_requested_latency)
2391 o->update_source_requested_latency(o);
2395 pa_sink_invalidate_requested_latency(s->monitor_of, dynamic);
2398 /* Called from main thread */
2399 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2400 pa_source_assert_ref(s);
2401 pa_assert_ctl_context();
2403 /* min_latency == 0: no limit
2404 * min_latency anything else: specified limit
2406 * Similar for max_latency */
2408 if (min_latency < ABSOLUTE_MIN_LATENCY)
2409 min_latency = ABSOLUTE_MIN_LATENCY;
2411 if (max_latency <= 0 ||
2412 max_latency > ABSOLUTE_MAX_LATENCY)
2413 max_latency = ABSOLUTE_MAX_LATENCY;
2415 pa_assert(min_latency <= max_latency);
2417 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2418 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2419 max_latency == ABSOLUTE_MAX_LATENCY) ||
2420 (s->flags & PA_SOURCE_DYNAMIC_LATENCY));
2422 if (PA_SOURCE_IS_LINKED(s->state)) {
2428 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
2430 pa_source_set_latency_range_within_thread(s, min_latency, max_latency);
2433 /* Called from main thread */
2434 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
2435 pa_source_assert_ref(s);
2436 pa_assert_ctl_context();
2437 pa_assert(min_latency);
2438 pa_assert(max_latency);
2440 if (PA_SOURCE_IS_LINKED(s->state)) {
2441 pa_usec_t r[2] = { 0, 0 };
2443 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
2445 *min_latency = r[0];
2446 *max_latency = r[1];
2448 *min_latency = s->thread_info.min_latency;
2449 *max_latency = s->thread_info.max_latency;
2453 /* Called from IO thread, and from main thread before pa_source_put() is called */
2454 void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
2455 pa_source_assert_ref(s);
2456 pa_source_assert_io_context(s);
2458 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
2459 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
2460 pa_assert(min_latency <= max_latency);
2462 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2463 pa_assert((min_latency == ABSOLUTE_MIN_LATENCY &&
2464 max_latency == ABSOLUTE_MAX_LATENCY) ||
2465 (s->flags & PA_SOURCE_DYNAMIC_LATENCY) ||
2468 if (s->thread_info.min_latency == min_latency &&
2469 s->thread_info.max_latency == max_latency)
2472 s->thread_info.min_latency = min_latency;
2473 s->thread_info.max_latency = max_latency;
2475 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2476 pa_source_output *o;
2479 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2480 if (o->update_source_latency_range)
2481 o->update_source_latency_range(o);
2484 pa_source_invalidate_requested_latency(s, FALSE);
2487 /* Called from main thread, before the source is put */
2488 void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency) {
2489 pa_source_assert_ref(s);
2490 pa_assert_ctl_context();
2492 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2493 pa_assert(latency == 0);
2497 if (latency < ABSOLUTE_MIN_LATENCY)
2498 latency = ABSOLUTE_MIN_LATENCY;
2500 if (latency > ABSOLUTE_MAX_LATENCY)
2501 latency = ABSOLUTE_MAX_LATENCY;
2503 if (PA_SOURCE_IS_LINKED(s->state))
2504 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY, NULL, (int64_t) latency, NULL) == 0);
2506 s->thread_info.fixed_latency = latency;
2509 /* Called from main thread */
2510 pa_usec_t pa_source_get_fixed_latency(pa_source *s) {
2513 pa_source_assert_ref(s);
2514 pa_assert_ctl_context();
2516 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY)
2519 if (PA_SOURCE_IS_LINKED(s->state))
2520 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY, &latency, 0, NULL) == 0);
2522 latency = s->thread_info.fixed_latency;
2527 /* Called from IO thread */
2528 void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency) {
2529 pa_source_assert_ref(s);
2530 pa_source_assert_io_context(s);
2532 if (s->flags & PA_SOURCE_DYNAMIC_LATENCY) {
2533 pa_assert(latency == 0);
2534 s->thread_info.fixed_latency = 0;
2539 pa_assert(latency >= ABSOLUTE_MIN_LATENCY);
2540 pa_assert(latency <= ABSOLUTE_MAX_LATENCY);
2542 if (s->thread_info.fixed_latency == latency)
2545 s->thread_info.fixed_latency = latency;
2547 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
2548 pa_source_output *o;
2551 PA_HASHMAP_FOREACH(o, s->thread_info.outputs, state)
2552 if (o->update_source_fixed_latency)
2553 o->update_source_fixed_latency(o);
2556 pa_source_invalidate_requested_latency(s, FALSE);
2559 /* Called from main thread */
2560 void pa_source_set_latency_offset(pa_source *s, int64_t offset) {
2561 pa_source_assert_ref(s);
2563 s->latency_offset = offset;
2565 if (PA_SOURCE_IS_LINKED(s->state))
2566 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET, NULL, offset, NULL) == 0);
2568 s->thread_info.latency_offset = offset;
2571 /* Called from main thread */
2572 size_t pa_source_get_max_rewind(pa_source *s) {
2574 pa_assert_ctl_context();
2575 pa_source_assert_ref(s);
2577 if (!PA_SOURCE_IS_LINKED(s->state))
2578 return s->thread_info.max_rewind;
2580 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);
2585 /* Called from main context */
2586 int pa_source_set_port(pa_source *s, const char *name, pa_bool_t save) {
2587 pa_device_port *port;
2590 pa_source_assert_ref(s);
2591 pa_assert_ctl_context();
2594 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s->index, s->name);
2595 return -PA_ERR_NOTIMPLEMENTED;
2599 return -PA_ERR_NOENTITY;
2601 if (!(port = pa_hashmap_get(s->ports, name)))
2602 return -PA_ERR_NOENTITY;
2604 if (s->active_port == port) {
2605 s->save_port = s->save_port || save;
2609 if (s->flags & PA_SOURCE_DEFERRED_VOLUME) {
2610 struct source_message_set_port msg = { .port = port, .ret = 0 };
2611 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_PORT, &msg, 0, NULL) == 0);
2615 ret = s->set_port(s, port);
2618 return -PA_ERR_NOENTITY;
2620 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
2622 pa_log_info("Changed port of source %u \"%s\" to %s", s->index, s->name, port->name);
2624 s->active_port = port;
2625 s->save_port = save;
2627 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PORT_CHANGED], s);
2632 PA_STATIC_FLIST_DECLARE(pa_source_volume_change, 0, pa_xfree);
2634 /* Called from the IO thread. */
2635 static pa_source_volume_change *pa_source_volume_change_new(pa_source *s) {
2636 pa_source_volume_change *c;
2637 if (!(c = pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change))))
2638 c = pa_xnew(pa_source_volume_change, 1);
2640 PA_LLIST_INIT(pa_source_volume_change, c);
2642 pa_cvolume_reset(&c->hw_volume, s->sample_spec.channels);
2646 /* Called from the IO thread. */
2647 static void pa_source_volume_change_free(pa_source_volume_change *c) {
2649 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change), c) < 0)
2653 /* Called from the IO thread. */
2654 void pa_source_volume_change_push(pa_source *s) {
2655 pa_source_volume_change *c = NULL;
2656 pa_source_volume_change *nc = NULL;
2657 uint32_t safety_margin = s->thread_info.volume_change_safety_margin;
2659 const char *direction = NULL;
2662 nc = pa_source_volume_change_new(s);
2664 /* NOTE: There is already more different volumes in pa_source that I can remember.
2665 * Adding one more volume for HW would get us rid of this, but I am trying
2666 * to survive with the ones we already have. */
2667 pa_sw_cvolume_divide(&nc->hw_volume, &s->real_volume, &s->soft_volume);
2669 if (!s->thread_info.volume_changes && pa_cvolume_equal(&nc->hw_volume, &s->thread_info.current_hw_volume)) {
2670 pa_log_debug("Volume not changing");
2671 pa_source_volume_change_free(nc);
2675 nc->at = pa_source_get_latency_within_thread(s);
2676 nc->at += pa_rtclock_now() + s->thread_info.volume_change_extra_delay;
2678 if (s->thread_info.volume_changes_tail) {
2679 for (c = s->thread_info.volume_changes_tail; c; c = c->prev) {
2680 /* If volume is going up let's do it a bit late. If it is going
2681 * down let's do it a bit early. */
2682 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&c->hw_volume)) {
2683 if (nc->at + safety_margin > c->at) {
2684 nc->at += safety_margin;
2689 else if (nc->at - safety_margin > c->at) {
2690 nc->at -= safety_margin;
2698 if (pa_cvolume_avg(&nc->hw_volume) > pa_cvolume_avg(&s->thread_info.current_hw_volume)) {
2699 nc->at += safety_margin;
2702 nc->at -= safety_margin;
2705 PA_LLIST_PREPEND(pa_source_volume_change, s->thread_info.volume_changes, nc);
2708 PA_LLIST_INSERT_AFTER(pa_source_volume_change, s->thread_info.volume_changes, c, nc);
2711 pa_log_debug("Volume going %s to %d at %llu", direction, pa_cvolume_avg(&nc->hw_volume), (long long unsigned) nc->at);
2713 /* We can ignore volume events that came earlier but should happen later than this. */
2714 PA_LLIST_FOREACH(c, nc->next) {
2715 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at);
2716 pa_source_volume_change_free(c);
2719 s->thread_info.volume_changes_tail = nc;
2722 /* Called from the IO thread. */
2723 static void pa_source_volume_change_flush(pa_source *s) {
2724 pa_source_volume_change *c = s->thread_info.volume_changes;
2726 s->thread_info.volume_changes = NULL;
2727 s->thread_info.volume_changes_tail = NULL;
2729 pa_source_volume_change *next = c->next;
2730 pa_source_volume_change_free(c);
2735 /* Called from the IO thread. */
2736 pa_bool_t pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next) {
2738 pa_bool_t ret = FALSE;
2742 if (!s->thread_info.volume_changes || !PA_SOURCE_IS_LINKED(s->state)) {
2748 pa_assert(s->write_volume);
2750 now = pa_rtclock_now();
2752 while (s->thread_info.volume_changes && now >= s->thread_info.volume_changes->at) {
2753 pa_source_volume_change *c = s->thread_info.volume_changes;
2754 PA_LLIST_REMOVE(pa_source_volume_change, s->thread_info.volume_changes, c);
2755 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2756 pa_cvolume_avg(&c->hw_volume), (long long unsigned) c->at, (long long unsigned) (now - c->at));
2758 s->thread_info.current_hw_volume = c->hw_volume;
2759 pa_source_volume_change_free(c);
2765 if (s->thread_info.volume_changes) {
2767 *usec_to_next = s->thread_info.volume_changes->at - now;
2768 if (pa_log_ratelimit(PA_LOG_DEBUG))
2769 pa_log_debug("Next volume change in %lld usec", (long long) (s->thread_info.volume_changes->at - now));
2774 s->thread_info.volume_changes_tail = NULL;
2780 /* Called from the main thread */
2781 /* Gets the list of formats supported by the source. The members and idxset must
2782 * be freed by the caller. */
2783 pa_idxset* pa_source_get_formats(pa_source *s) {
2788 if (s->get_formats) {
2789 /* Source supports format query, all is good */
2790 ret = s->get_formats(s);
2792 /* Source doesn't support format query, so assume it does PCM */
2793 pa_format_info *f = pa_format_info_new();
2794 f->encoding = PA_ENCODING_PCM;
2796 ret = pa_idxset_new(NULL, NULL);
2797 pa_idxset_put(ret, f, NULL);
2803 /* Called from the main thread */
2804 /* Checks if the source can accept this format */
2805 pa_bool_t pa_source_check_format(pa_source *s, pa_format_info *f)
2807 pa_idxset *formats = NULL;
2808 pa_bool_t ret = FALSE;
2813 formats = pa_source_get_formats(s);
2816 pa_format_info *finfo_device;
2819 PA_IDXSET_FOREACH(finfo_device, formats, i) {
2820 if (pa_format_info_is_compatible(finfo_device, f)) {
2826 pa_idxset_free(formats, (pa_free_cb_t) pa_format_info_free);
2832 /* Called from the main thread */
2833 /* Calculates the intersection between formats supported by the source and
2834 * in_formats, and returns these, in the order of the source's formats. */
2835 pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats) {
2836 pa_idxset *out_formats = pa_idxset_new(NULL, NULL), *source_formats = NULL;
2837 pa_format_info *f_source, *f_in;
2842 if (!in_formats || pa_idxset_isempty(in_formats))
2845 source_formats = pa_source_get_formats(s);
2847 PA_IDXSET_FOREACH(f_source, source_formats, i) {
2848 PA_IDXSET_FOREACH(f_in, in_formats, j) {
2849 if (pa_format_info_is_compatible(f_source, f_in))
2850 pa_idxset_put(out_formats, pa_format_info_copy(f_in), NULL);
2856 pa_idxset_free(source_formats, (pa_free_cb_t) pa_format_info_free);