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_full(pa_idxset_string_hash_func
, pa_idxset_string_compare_func
, NULL
, (pa_free_cb_t
) pa_device_port_unref
);
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
, bool 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
);
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 (p
->available
== PA_AVAILABLE_NO
)
299 if (!s
->active_port
|| p
->priority
> s
->active_port
->priority
)
303 if (!s
->active_port
) {
304 PA_HASHMAP_FOREACH(p
, s
->ports
, state
)
305 if (!s
->active_port
|| p
->priority
> s
->active_port
->priority
)
311 s
->latency_offset
= s
->active_port
->latency_offset
;
313 s
->latency_offset
= 0;
315 s
->save_volume
= data
->save_volume
;
316 s
->save_muted
= data
->save_muted
;
318 pa_silence_memchunk_get(
319 &core
->silence_cache
,
325 s
->thread_info
.rtpoll
= NULL
;
326 s
->thread_info
.outputs
= pa_hashmap_new_full(pa_idxset_trivial_hash_func
, pa_idxset_trivial_compare_func
, NULL
,
327 (pa_free_cb_t
) pa_source_output_unref
);
328 s
->thread_info
.soft_volume
= s
->soft_volume
;
329 s
->thread_info
.soft_muted
= s
->muted
;
330 s
->thread_info
.state
= s
->state
;
331 s
->thread_info
.max_rewind
= 0;
332 s
->thread_info
.requested_latency_valid
= false;
333 s
->thread_info
.requested_latency
= 0;
334 s
->thread_info
.min_latency
= ABSOLUTE_MIN_LATENCY
;
335 s
->thread_info
.max_latency
= ABSOLUTE_MAX_LATENCY
;
336 s
->thread_info
.fixed_latency
= flags
& PA_SOURCE_DYNAMIC_LATENCY
? 0 : DEFAULT_FIXED_LATENCY
;
338 PA_LLIST_HEAD_INIT(pa_source_volume_change
, s
->thread_info
.volume_changes
);
339 s
->thread_info
.volume_changes_tail
= NULL
;
340 pa_sw_cvolume_multiply(&s
->thread_info
.current_hw_volume
, &s
->soft_volume
, &s
->real_volume
);
341 s
->thread_info
.volume_change_safety_margin
= core
->deferred_volume_safety_margin_usec
;
342 s
->thread_info
.volume_change_extra_delay
= core
->deferred_volume_extra_delay_usec
;
343 s
->thread_info
.latency_offset
= s
->latency_offset
;
345 /* FIXME: This should probably be moved to pa_source_put() */
346 pa_assert_se(pa_idxset_put(core
->sources
, s
, &s
->index
) >= 0);
349 pa_assert_se(pa_idxset_put(s
->card
->sources
, s
, NULL
) >= 0);
351 pt
= pa_proplist_to_string_sep(s
->proplist
, "\n ");
352 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
355 pa_sample_spec_snprint(st
, sizeof(st
), &s
->sample_spec
),
356 pa_channel_map_snprint(cm
, sizeof(cm
), &s
->channel_map
),
363 /* Called from main context */
364 static int source_set_state(pa_source
*s
, pa_source_state_t state
) {
367 pa_source_state_t original_state
;
370 pa_assert_ctl_context();
372 if (s
->state
== state
)
375 original_state
= s
->state
;
378 (original_state
== PA_SOURCE_SUSPENDED
&& PA_SOURCE_IS_OPENED(state
)) ||
379 (PA_SOURCE_IS_OPENED(original_state
) && state
== PA_SOURCE_SUSPENDED
);
382 if ((ret
= s
->set_state(s
, state
)) < 0)
386 if ((ret
= pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
)) < 0) {
389 s
->set_state(s
, original_state
);
396 if (state
!= PA_SOURCE_UNLINKED
) { /* if we enter UNLINKED state pa_source_unlink() will fire the appropriate events */
397 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_STATE_CHANGED
], s
);
398 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
401 if (suspend_change
) {
405 /* We're suspending or resuming, tell everyone about it */
407 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
)
408 if (s
->state
== PA_SOURCE_SUSPENDED
&&
409 (o
->flags
& PA_SOURCE_OUTPUT_KILL_ON_SUSPEND
))
410 pa_source_output_kill(o
);
412 o
->suspend(o
, state
== PA_SOURCE_SUSPENDED
);
418 void pa_source_set_get_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
424 void pa_source_set_set_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
425 pa_source_flags_t flags
;
428 pa_assert(!s
->write_volume
|| cb
);
432 /* Save the current flags so we can tell if they've changed */
436 /* The source implementor is responsible for setting decibel volume support */
437 s
->flags
|= PA_SOURCE_HW_VOLUME_CTRL
;
439 s
->flags
&= ~PA_SOURCE_HW_VOLUME_CTRL
;
440 /* See note below in pa_source_put() about volume sharing and decibel volumes */
441 pa_source_enable_decibel_volume(s
, !(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
444 /* If the flags have changed after init, let any clients know via a change event */
445 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
446 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
449 void pa_source_set_write_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
450 pa_source_flags_t flags
;
453 pa_assert(!cb
|| s
->set_volume
);
455 s
->write_volume
= cb
;
457 /* Save the current flags so we can tell if they've changed */
461 s
->flags
|= PA_SOURCE_DEFERRED_VOLUME
;
463 s
->flags
&= ~PA_SOURCE_DEFERRED_VOLUME
;
465 /* If the flags have changed after init, let any clients know via a change event */
466 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
467 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
470 void pa_source_set_get_mute_callback(pa_source
*s
, pa_source_cb_t cb
) {
476 void pa_source_set_set_mute_callback(pa_source
*s
, pa_source_cb_t cb
) {
477 pa_source_flags_t flags
;
483 /* Save the current flags so we can tell if they've changed */
487 s
->flags
|= PA_SOURCE_HW_MUTE_CTRL
;
489 s
->flags
&= ~PA_SOURCE_HW_MUTE_CTRL
;
491 /* If the flags have changed after init, let any clients know via a change event */
492 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
493 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
496 static void enable_flat_volume(pa_source
*s
, bool enable
) {
497 pa_source_flags_t flags
;
501 /* Always follow the overall user preference here */
502 enable
= enable
&& s
->core
->flat_volumes
;
504 /* Save the current flags so we can tell if they've changed */
508 s
->flags
|= PA_SOURCE_FLAT_VOLUME
;
510 s
->flags
&= ~PA_SOURCE_FLAT_VOLUME
;
512 /* If the flags have changed after init, let any clients know via a change event */
513 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
514 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
517 void pa_source_enable_decibel_volume(pa_source
*s
, bool enable
) {
518 pa_source_flags_t flags
;
522 /* Save the current flags so we can tell if they've changed */
526 s
->flags
|= PA_SOURCE_DECIBEL_VOLUME
;
527 enable_flat_volume(s
, true);
529 s
->flags
&= ~PA_SOURCE_DECIBEL_VOLUME
;
530 enable_flat_volume(s
, false);
533 /* If the flags have changed after init, let any clients know via a change event */
534 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
535 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
538 /* Called from main context */
539 void pa_source_put(pa_source
*s
) {
540 pa_source_assert_ref(s
);
541 pa_assert_ctl_context();
543 pa_assert(s
->state
== PA_SOURCE_INIT
);
544 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) || s
->output_from_master
);
546 /* The following fields must be initialized properly when calling _put() */
547 pa_assert(s
->asyncmsgq
);
548 pa_assert(s
->thread_info
.min_latency
<= s
->thread_info
.max_latency
);
550 /* Generally, flags should be initialized via pa_source_new(). As a
551 * special exception we allow some volume related flags to be set
552 * between _new() and _put() by the callback setter functions above.
554 * Thus we implement a couple safeguards here which ensure the above
555 * setters were used (or at least the implementor made manual changes
556 * in a compatible way).
558 * Note: All of these flags set here can change over the life time
560 pa_assert(!(s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
) || s
->set_volume
);
561 pa_assert(!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) || s
->write_volume
);
562 pa_assert(!(s
->flags
& PA_SOURCE_HW_MUTE_CTRL
) || s
->set_mute
);
564 /* XXX: Currently decibel volume is disabled for all sources that use volume
565 * sharing. When the master source supports decibel volume, it would be good
566 * to have the flag also in the filter source, but currently we don't do that
567 * so that the flags of the filter source never change when it's moved from
568 * a master source to another. One solution for this problem would be to
569 * remove user-visible volume altogether from filter sources when volume
570 * sharing is used, but the current approach was easier to implement... */
571 /* We always support decibel volumes in software, otherwise we leave it to
572 * the source implementor to set this flag as needed.
574 * Note: This flag can also change over the life time of the source. */
575 if (!(s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
) && !(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
576 pa_source_enable_decibel_volume(s
, true);
578 /* If the source implementor support DB volumes by itself, we should always
579 * try and enable flat volumes too */
580 if ((s
->flags
& PA_SOURCE_DECIBEL_VOLUME
))
581 enable_flat_volume(s
, true);
583 if (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) {
584 pa_source
*root_source
= pa_source_get_master(s
);
586 pa_assert(PA_LIKELY(root_source
));
588 s
->reference_volume
= root_source
->reference_volume
;
589 pa_cvolume_remap(&s
->reference_volume
, &root_source
->channel_map
, &s
->channel_map
);
591 s
->real_volume
= root_source
->real_volume
;
592 pa_cvolume_remap(&s
->real_volume
, &root_source
->channel_map
, &s
->channel_map
);
594 /* We assume that if the sink implementor changed the default
595 * volume he did so in real_volume, because that is the usual
596 * place where he is supposed to place his changes. */
597 s
->reference_volume
= s
->real_volume
;
599 s
->thread_info
.soft_volume
= s
->soft_volume
;
600 s
->thread_info
.soft_muted
= s
->muted
;
601 pa_sw_cvolume_multiply(&s
->thread_info
.current_hw_volume
, &s
->soft_volume
, &s
->real_volume
);
603 pa_assert((s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
)
604 || (s
->base_volume
== PA_VOLUME_NORM
605 && ((s
->flags
& PA_SOURCE_DECIBEL_VOLUME
|| (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)))));
606 pa_assert(!(s
->flags
& PA_SOURCE_DECIBEL_VOLUME
) || s
->n_volume_steps
== PA_VOLUME_NORM
+1);
607 pa_assert(!(s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) == (s
->thread_info
.fixed_latency
!= 0));
609 if (s
->suspend_cause
)
610 pa_assert_se(source_set_state(s
, PA_SOURCE_SUSPENDED
) == 0);
612 pa_assert_se(source_set_state(s
, PA_SOURCE_IDLE
) == 0);
614 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_NEW
, s
->index
);
615 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PUT
], s
);
618 /* Called from main context */
619 void pa_source_unlink(pa_source
*s
) {
621 pa_source_output
*o
, *j
= NULL
;
624 pa_assert_ctl_context();
626 /* See pa_sink_unlink() for a couple of comments how this function
629 linked
= PA_SOURCE_IS_LINKED(s
->state
);
632 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_UNLINK
], s
);
634 if (s
->state
!= PA_SOURCE_UNLINKED
)
635 pa_namereg_unregister(s
->core
, s
->name
);
636 pa_idxset_remove_by_data(s
->core
->sources
, s
, NULL
);
639 pa_idxset_remove_by_data(s
->card
->sources
, s
, NULL
);
641 while ((o
= pa_idxset_first(s
->outputs
, NULL
))) {
643 pa_source_output_kill(o
);
648 source_set_state(s
, PA_SOURCE_UNLINKED
);
650 s
->state
= PA_SOURCE_UNLINKED
;
655 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_REMOVE
, s
->index
);
656 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_UNLINK_POST
], s
);
660 /* Called from main context */
661 static void source_free(pa_object
*o
) {
662 pa_source
*s
= PA_SOURCE(o
);
665 pa_assert_ctl_context();
666 pa_assert(pa_source_refcnt(s
) == 0);
668 if (PA_SOURCE_IS_LINKED(s
->state
))
671 pa_log_info("Freeing source %u \"%s\"", s
->index
, s
->name
);
673 pa_idxset_free(s
->outputs
, NULL
);
674 pa_hashmap_free(s
->thread_info
.outputs
);
676 if (s
->silence
.memblock
)
677 pa_memblock_unref(s
->silence
.memblock
);
683 pa_proplist_free(s
->proplist
);
686 pa_hashmap_free(s
->ports
);
691 /* Called from main context, and not while the IO thread is active, please */
692 void pa_source_set_asyncmsgq(pa_source
*s
, pa_asyncmsgq
*q
) {
693 pa_source_assert_ref(s
);
694 pa_assert_ctl_context();
699 /* Called from main context, and not while the IO thread is active, please */
700 void pa_source_update_flags(pa_source
*s
, pa_source_flags_t mask
, pa_source_flags_t value
) {
701 pa_source_flags_t old_flags
;
702 pa_source_output
*output
;
705 pa_source_assert_ref(s
);
706 pa_assert_ctl_context();
708 /* For now, allow only a minimal set of flags to be changed. */
709 pa_assert((mask
& ~(PA_SOURCE_DYNAMIC_LATENCY
|PA_SOURCE_LATENCY
)) == 0);
711 old_flags
= s
->flags
;
712 s
->flags
= (s
->flags
& ~mask
) | (value
& mask
);
714 if (s
->flags
== old_flags
)
717 if ((s
->flags
& PA_SOURCE_LATENCY
) != (old_flags
& PA_SOURCE_LATENCY
))
718 pa_log_debug("Source %s: LATENCY flag %s.", s
->name
, (s
->flags
& PA_SOURCE_LATENCY
) ? "enabled" : "disabled");
720 if ((s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) != (old_flags
& PA_SOURCE_DYNAMIC_LATENCY
))
721 pa_log_debug("Source %s: DYNAMIC_LATENCY flag %s.",
722 s
->name
, (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) ? "enabled" : "disabled");
724 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
725 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_FLAGS_CHANGED
], s
);
727 PA_IDXSET_FOREACH(output
, s
->outputs
, idx
) {
728 if (output
->destination_source
)
729 pa_source_update_flags(output
->destination_source
, mask
, value
);
733 /* Called from IO context, or before _put() from main context */
734 void pa_source_set_rtpoll(pa_source
*s
, pa_rtpoll
*p
) {
735 pa_source_assert_ref(s
);
736 pa_source_assert_io_context(s
);
738 s
->thread_info
.rtpoll
= p
;
741 /* Called from main context */
742 int pa_source_update_status(pa_source
*s
) {
743 pa_source_assert_ref(s
);
744 pa_assert_ctl_context();
745 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
747 if (s
->state
== PA_SOURCE_SUSPENDED
)
750 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
753 /* Called from any context - must be threadsafe */
754 void pa_source_set_mixer_dirty(pa_source
*s
, bool is_dirty
) {
755 pa_atomic_store(&s
->mixer_dirty
, is_dirty
? 1 : 0);
758 /* Called from main context */
759 int pa_source_suspend(pa_source
*s
, bool suspend
, pa_suspend_cause_t cause
) {
760 pa_source_assert_ref(s
);
761 pa_assert_ctl_context();
762 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
763 pa_assert(cause
!= 0);
765 if (s
->monitor_of
&& cause
!= PA_SUSPEND_PASSTHROUGH
)
766 return -PA_ERR_NOTSUPPORTED
;
769 s
->suspend_cause
|= cause
;
771 s
->suspend_cause
&= ~cause
;
773 if (!(s
->suspend_cause
& PA_SUSPEND_SESSION
) && (pa_atomic_load(&s
->mixer_dirty
) != 0)) {
774 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
775 it'll be handled just fine. */
776 pa_source_set_mixer_dirty(s
, false);
777 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
778 if (s
->active_port
&& s
->set_port
) {
779 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) {
780 struct source_message_set_port msg
= { .port
= s
->active_port
, .ret
= 0 };
781 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_PORT
, &msg
, 0, NULL
) == 0);
784 s
->set_port(s
, s
->active_port
);
794 if ((pa_source_get_state(s
) == PA_SOURCE_SUSPENDED
) == !!s
->suspend_cause
)
797 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s
->name
, s
->suspend_cause
, s
->suspend_cause
? "suspending" : "resuming");
799 if (s
->suspend_cause
)
800 return source_set_state(s
, PA_SOURCE_SUSPENDED
);
802 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
805 /* Called from main context */
806 int pa_source_sync_suspend(pa_source
*s
) {
807 pa_sink_state_t state
;
809 pa_source_assert_ref(s
);
810 pa_assert_ctl_context();
811 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
812 pa_assert(s
->monitor_of
);
814 state
= pa_sink_get_state(s
->monitor_of
);
816 if (state
== PA_SINK_SUSPENDED
)
817 return source_set_state(s
, PA_SOURCE_SUSPENDED
);
819 pa_assert(PA_SINK_IS_OPENED(state
));
821 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
824 /* Called from main context */
825 pa_queue
*pa_source_move_all_start(pa_source
*s
, pa_queue
*q
) {
826 pa_source_output
*o
, *n
;
829 pa_source_assert_ref(s
);
830 pa_assert_ctl_context();
831 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
836 for (o
= PA_SOURCE_OUTPUT(pa_idxset_first(s
->outputs
, &idx
)); o
; o
= n
) {
837 n
= PA_SOURCE_OUTPUT(pa_idxset_next(s
->outputs
, &idx
));
839 pa_source_output_ref(o
);
841 if (pa_source_output_start_move(o
) >= 0)
844 pa_source_output_unref(o
);
850 /* Called from main context */
851 void pa_source_move_all_finish(pa_source
*s
, pa_queue
*q
, bool save
) {
854 pa_source_assert_ref(s
);
855 pa_assert_ctl_context();
856 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
859 while ((o
= PA_SOURCE_OUTPUT(pa_queue_pop(q
)))) {
860 if (pa_source_output_finish_move(o
, s
, save
) < 0)
861 pa_source_output_fail_move(o
);
863 pa_source_output_unref(o
);
866 pa_queue_free(q
, NULL
);
869 /* Called from main context */
870 void pa_source_move_all_fail(pa_queue
*q
) {
873 pa_assert_ctl_context();
876 while ((o
= PA_SOURCE_OUTPUT(pa_queue_pop(q
)))) {
877 pa_source_output_fail_move(o
);
878 pa_source_output_unref(o
);
881 pa_queue_free(q
, NULL
);
884 /* Called from IO thread context */
885 void pa_source_process_rewind(pa_source
*s
, size_t nbytes
) {
889 pa_source_assert_ref(s
);
890 pa_source_assert_io_context(s
);
891 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
896 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
899 pa_log_debug("Processing rewind...");
901 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
902 pa_source_output_assert_ref(o
);
903 pa_source_output_process_rewind(o
, nbytes
);
907 /* Called from IO thread context */
908 void pa_source_post(pa_source
*s
, const pa_memchunk
*chunk
) {
912 pa_source_assert_ref(s
);
913 pa_source_assert_io_context(s
);
914 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
917 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
920 if (s
->thread_info
.soft_muted
|| !pa_cvolume_is_norm(&s
->thread_info
.soft_volume
)) {
921 pa_memchunk vchunk
= *chunk
;
923 pa_memblock_ref(vchunk
.memblock
);
924 pa_memchunk_make_writable(&vchunk
, 0);
926 if (s
->thread_info
.soft_muted
|| pa_cvolume_is_muted(&s
->thread_info
.soft_volume
))
927 pa_silence_memchunk(&vchunk
, &s
->sample_spec
);
929 pa_volume_memchunk(&vchunk
, &s
->sample_spec
, &s
->thread_info
.soft_volume
);
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
, &vchunk
);
938 pa_memblock_unref(vchunk
.memblock
);
941 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
))) {
942 pa_source_output_assert_ref(o
);
944 if (!o
->thread_info
.direct_on_input
)
945 pa_source_output_push(o
, chunk
);
950 /* Called from IO thread context */
951 void pa_source_post_direct(pa_source
*s
, pa_source_output
*o
, const pa_memchunk
*chunk
) {
952 pa_source_assert_ref(s
);
953 pa_source_assert_io_context(s
);
954 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
955 pa_source_output_assert_ref(o
);
956 pa_assert(o
->thread_info
.direct_on_input
);
959 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
962 if (s
->thread_info
.soft_muted
|| !pa_cvolume_is_norm(&s
->thread_info
.soft_volume
)) {
963 pa_memchunk vchunk
= *chunk
;
965 pa_memblock_ref(vchunk
.memblock
);
966 pa_memchunk_make_writable(&vchunk
, 0);
968 if (s
->thread_info
.soft_muted
|| pa_cvolume_is_muted(&s
->thread_info
.soft_volume
))
969 pa_silence_memchunk(&vchunk
, &s
->sample_spec
);
971 pa_volume_memchunk(&vchunk
, &s
->sample_spec
, &s
->thread_info
.soft_volume
);
973 pa_source_output_push(o
, &vchunk
);
975 pa_memblock_unref(vchunk
.memblock
);
977 pa_source_output_push(o
, chunk
);
980 /* Called from main thread */
981 int pa_source_update_rate(pa_source
*s
, uint32_t rate
, bool passthrough
) {
983 uint32_t desired_rate
= rate
;
984 uint32_t default_rate
= s
->default_sample_rate
;
985 uint32_t alternate_rate
= s
->alternate_sample_rate
;
986 bool use_alternate
= false;
988 if (rate
== s
->sample_spec
.rate
)
991 if (!s
->update_rate
&& !s
->monitor_of
)
994 if (PA_UNLIKELY(default_rate
== alternate_rate
&& !passthrough
)) {
995 pa_log_debug("Default and alternate sample rates are the same.");
999 if (PA_SOURCE_IS_RUNNING(s
->state
)) {
1000 pa_log_info("Cannot update rate, SOURCE_IS_RUNNING, will keep using %u Hz",
1001 s
->sample_spec
.rate
);
1005 if (s
->monitor_of
) {
1006 if (PA_SINK_IS_RUNNING(s
->monitor_of
->state
)) {
1007 pa_log_info("Cannot update rate, this is a monitor source and the sink is running.");
1012 if (PA_UNLIKELY (desired_rate
< 8000 ||
1013 desired_rate
> PA_RATE_MAX
))
1017 pa_assert((default_rate
% 4000 == 0) || (default_rate
% 11025 == 0));
1018 pa_assert((alternate_rate
% 4000 == 0) || (alternate_rate
% 11025 == 0));
1020 if (default_rate
% 11025 == 0) {
1021 if ((alternate_rate
% 4000 == 0) && (desired_rate
% 4000 == 0))
1024 /* default is 4000 multiple */
1025 if ((alternate_rate
% 11025 == 0) && (desired_rate
% 11025 == 0))
1030 desired_rate
= alternate_rate
;
1032 desired_rate
= default_rate
;
1034 desired_rate
= rate
; /* use stream sampling rate, discard default/alternate settings */
1037 if (desired_rate
== s
->sample_spec
.rate
)
1040 if (!passthrough
&& pa_source_used_by(s
) > 0)
1043 pa_log_debug("Suspending source %s due to changing the sample rate.", s
->name
);
1044 pa_source_suspend(s
, true, PA_SUSPEND_INTERNAL
);
1047 ret
= s
->update_rate(s
, desired_rate
);
1049 /* This is a monitor source. */
1051 /* XXX: This code is written with non-passthrough streams in mind. I
1052 * have no idea whether the behaviour with passthrough streams is
1055 uint32_t old_rate
= s
->sample_spec
.rate
;
1057 s
->sample_spec
.rate
= desired_rate
;
1058 ret
= pa_sink_update_rate(s
->monitor_of
, desired_rate
, false);
1061 /* Changing the sink rate failed, roll back the old rate for
1062 * the monitor source. Why did we set the source rate before
1063 * calling pa_sink_update_rate(), you may ask. The reason is
1064 * that pa_sink_update_rate() tries to update the monitor
1065 * source rate, but we are already in the process of updating
1066 * the monitor source rate, so there's a risk of entering an
1067 * infinite loop. Setting the source rate before calling
1068 * pa_sink_update_rate() makes the rate == s->sample_spec.rate
1069 * check in the beginning of this function return early, so we
1071 s
->sample_spec
.rate
= old_rate
;
1079 pa_source_output
*o
;
1081 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1082 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
)
1083 pa_source_output_update_rate(o
);
1086 pa_log_info("Changed sampling rate successfully");
1089 pa_source_suspend(s
, false, PA_SUSPEND_INTERNAL
);
1094 /* Called from main thread */
1095 pa_usec_t
pa_source_get_latency(pa_source
*s
) {
1098 pa_source_assert_ref(s
);
1099 pa_assert_ctl_context();
1100 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1102 if (s
->state
== PA_SOURCE_SUSPENDED
)
1105 if (!(s
->flags
& PA_SOURCE_LATENCY
))
1108 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY
, &usec
, 0, NULL
) == 0);
1110 /* usec is unsigned, so check that the offset can be added to usec without
1112 if (-s
->latency_offset
<= (int64_t) usec
)
1113 usec
+= s
->latency_offset
;
1120 /* Called from IO thread */
1121 pa_usec_t
pa_source_get_latency_within_thread(pa_source
*s
) {
1125 pa_source_assert_ref(s
);
1126 pa_source_assert_io_context(s
);
1127 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
1129 /* The returned value is supposed to be in the time domain of the sound card! */
1131 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
1134 if (!(s
->flags
& PA_SOURCE_LATENCY
))
1137 o
= PA_MSGOBJECT(s
);
1139 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1141 if (o
->process_msg(o
, PA_SOURCE_MESSAGE_GET_LATENCY
, &usec
, 0, NULL
) < 0)
1144 /* usec is unsigned, so check that the offset can be added to usec without
1146 if (-s
->thread_info
.latency_offset
<= (int64_t) usec
)
1147 usec
+= s
->thread_info
.latency_offset
;
1154 /* Called from the main thread (and also from the IO thread while the main
1155 * thread is waiting).
1157 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
1158 * set. Instead, flat volume mode is detected by checking whether the root source
1159 * has the flag set. */
1160 bool pa_source_flat_volume_enabled(pa_source
*s
) {
1161 pa_source_assert_ref(s
);
1163 s
= pa_source_get_master(s
);
1166 return (s
->flags
& PA_SOURCE_FLAT_VOLUME
);
1171 /* Called from the main thread (and also from the IO thread while the main
1172 * thread is waiting). */
1173 pa_source
*pa_source_get_master(pa_source
*s
) {
1174 pa_source_assert_ref(s
);
1176 while (s
&& (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1177 if (PA_UNLIKELY(!s
->output_from_master
))
1180 s
= s
->output_from_master
->source
;
1186 /* Called from main context */
1187 bool pa_source_is_passthrough(pa_source
*s
) {
1189 pa_source_assert_ref(s
);
1191 /* NB Currently only monitor sources support passthrough mode */
1192 return (s
->monitor_of
&& pa_sink_is_passthrough(s
->monitor_of
));
1195 /* Called from main context */
1196 void pa_source_enter_passthrough(pa_source
*s
) {
1199 /* set the volume to NORM */
1200 s
->saved_volume
= *pa_source_get_volume(s
, true);
1201 s
->saved_save_volume
= s
->save_volume
;
1203 pa_cvolume_set(&volume
, s
->sample_spec
.channels
, PA_MIN(s
->base_volume
, PA_VOLUME_NORM
));
1204 pa_source_set_volume(s
, &volume
, true, false);
1207 /* Called from main context */
1208 void pa_source_leave_passthrough(pa_source
*s
) {
1209 /* Restore source volume to what it was before we entered passthrough mode */
1210 pa_source_set_volume(s
, &s
->saved_volume
, true, s
->saved_save_volume
);
1212 pa_cvolume_init(&s
->saved_volume
);
1213 s
->saved_save_volume
= false;
1216 /* Called from main context. */
1217 static void compute_reference_ratio(pa_source_output
*o
) {
1219 pa_cvolume remapped
;
1222 pa_assert(pa_source_flat_volume_enabled(o
->source
));
1225 * Calculates the reference ratio from the source's reference
1226 * volume. This basically calculates:
1228 * o->reference_ratio = o->volume / o->source->reference_volume
1231 remapped
= o
->source
->reference_volume
;
1232 pa_cvolume_remap(&remapped
, &o
->source
->channel_map
, &o
->channel_map
);
1234 o
->reference_ratio
.channels
= o
->sample_spec
.channels
;
1236 for (c
= 0; c
< o
->sample_spec
.channels
; c
++) {
1238 /* We don't update when the source volume is 0 anyway */
1239 if (remapped
.values
[c
] <= PA_VOLUME_MUTED
)
1242 /* Don't update the reference ratio unless necessary */
1243 if (pa_sw_volume_multiply(
1244 o
->reference_ratio
.values
[c
],
1245 remapped
.values
[c
]) == o
->volume
.values
[c
])
1248 o
->reference_ratio
.values
[c
] = pa_sw_volume_divide(
1249 o
->volume
.values
[c
],
1250 remapped
.values
[c
]);
1254 /* Called from main context. Only called for the root source in volume sharing
1255 * cases, except for internal recursive calls. */
1256 static void compute_reference_ratios(pa_source
*s
) {
1258 pa_source_output
*o
;
1260 pa_source_assert_ref(s
);
1261 pa_assert_ctl_context();
1262 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1263 pa_assert(pa_source_flat_volume_enabled(s
));
1265 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1266 compute_reference_ratio(o
);
1268 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1269 compute_reference_ratios(o
->destination_source
);
1273 /* Called from main context. Only called for the root source in volume sharing
1274 * cases, except for internal recursive calls. */
1275 static void compute_real_ratios(pa_source
*s
) {
1276 pa_source_output
*o
;
1279 pa_source_assert_ref(s
);
1280 pa_assert_ctl_context();
1281 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1282 pa_assert(pa_source_flat_volume_enabled(s
));
1284 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1286 pa_cvolume remapped
;
1288 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1289 /* The origin source uses volume sharing, so this input's real ratio
1290 * is handled as a special case - the real ratio must be 0 dB, and
1291 * as a result i->soft_volume must equal i->volume_factor. */
1292 pa_cvolume_reset(&o
->real_ratio
, o
->real_ratio
.channels
);
1293 o
->soft_volume
= o
->volume_factor
;
1295 compute_real_ratios(o
->destination_source
);
1301 * This basically calculates:
1303 * i->real_ratio := i->volume / s->real_volume
1304 * i->soft_volume := i->real_ratio * i->volume_factor
1307 remapped
= s
->real_volume
;
1308 pa_cvolume_remap(&remapped
, &s
->channel_map
, &o
->channel_map
);
1310 o
->real_ratio
.channels
= o
->sample_spec
.channels
;
1311 o
->soft_volume
.channels
= o
->sample_spec
.channels
;
1313 for (c
= 0; c
< o
->sample_spec
.channels
; c
++) {
1315 if (remapped
.values
[c
] <= PA_VOLUME_MUTED
) {
1316 /* We leave o->real_ratio untouched */
1317 o
->soft_volume
.values
[c
] = PA_VOLUME_MUTED
;
1321 /* Don't lose accuracy unless necessary */
1322 if (pa_sw_volume_multiply(
1323 o
->real_ratio
.values
[c
],
1324 remapped
.values
[c
]) != o
->volume
.values
[c
])
1326 o
->real_ratio
.values
[c
] = pa_sw_volume_divide(
1327 o
->volume
.values
[c
],
1328 remapped
.values
[c
]);
1330 o
->soft_volume
.values
[c
] = pa_sw_volume_multiply(
1331 o
->real_ratio
.values
[c
],
1332 o
->volume_factor
.values
[c
]);
1335 /* We don't copy the soft_volume to the thread_info data
1336 * here. That must be done by the caller */
1340 static pa_cvolume
*cvolume_remap_minimal_impact(
1342 const pa_cvolume
*template,
1343 const pa_channel_map
*from
,
1344 const pa_channel_map
*to
) {
1349 pa_assert(template);
1352 pa_assert(pa_cvolume_compatible_with_channel_map(v
, from
));
1353 pa_assert(pa_cvolume_compatible_with_channel_map(template, to
));
1355 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1356 * mapping from source output to source volumes:
1358 * If template is a possible remapping from v it is used instead
1359 * of remapping anew.
1361 * If the channel maps don't match we set an all-channel volume on
1362 * the source to ensure that changing a volume on one stream has no
1363 * effect that cannot be compensated for in another stream that
1364 * does not have the same channel map as the source. */
1366 if (pa_channel_map_equal(from
, to
))
1370 if (pa_cvolume_equal(pa_cvolume_remap(&t
, to
, from
), v
)) {
1375 pa_cvolume_set(v
, to
->channels
, pa_cvolume_max(v
));
1379 /* Called from main thread. Only called for the root source in volume sharing
1380 * cases, except for internal recursive calls. */
1381 static void get_maximum_output_volume(pa_source
*s
, pa_cvolume
*max_volume
, const pa_channel_map
*channel_map
) {
1382 pa_source_output
*o
;
1385 pa_source_assert_ref(s
);
1386 pa_assert(max_volume
);
1387 pa_assert(channel_map
);
1388 pa_assert(pa_source_flat_volume_enabled(s
));
1390 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1391 pa_cvolume remapped
;
1393 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1394 get_maximum_output_volume(o
->destination_source
, max_volume
, channel_map
);
1396 /* Ignore this output. The origin source uses volume sharing, so this
1397 * output's volume will be set to be equal to the root source's real
1398 * volume. Obviously this output's current volume must not then
1399 * affect what the root source's real volume will be. */
1403 remapped
= o
->volume
;
1404 cvolume_remap_minimal_impact(&remapped
, max_volume
, &o
->channel_map
, channel_map
);
1405 pa_cvolume_merge(max_volume
, max_volume
, &remapped
);
1409 /* Called from main thread. Only called for the root source in volume sharing
1410 * cases, except for internal recursive calls. */
1411 static bool has_outputs(pa_source
*s
) {
1412 pa_source_output
*o
;
1415 pa_source_assert_ref(s
);
1417 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1418 if (!o
->destination_source
|| !(o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) || has_outputs(o
->destination_source
))
1425 /* Called from main thread. Only called for the root source in volume sharing
1426 * cases, except for internal recursive calls. */
1427 static void update_real_volume(pa_source
*s
, const pa_cvolume
*new_volume
, pa_channel_map
*channel_map
) {
1428 pa_source_output
*o
;
1431 pa_source_assert_ref(s
);
1432 pa_assert(new_volume
);
1433 pa_assert(channel_map
);
1435 s
->real_volume
= *new_volume
;
1436 pa_cvolume_remap(&s
->real_volume
, channel_map
, &s
->channel_map
);
1438 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1439 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1440 if (pa_source_flat_volume_enabled(s
)) {
1441 pa_cvolume old_volume
= o
->volume
;
1443 /* Follow the root source's real volume. */
1444 o
->volume
= *new_volume
;
1445 pa_cvolume_remap(&o
->volume
, channel_map
, &o
->channel_map
);
1446 compute_reference_ratio(o
);
1448 /* The volume changed, let's tell people so */
1449 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1450 if (o
->volume_changed
)
1451 o
->volume_changed(o
);
1453 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1457 update_real_volume(o
->destination_source
, new_volume
, channel_map
);
1462 /* Called from main thread. Only called for the root source in shared volume
1464 static void compute_real_volume(pa_source
*s
) {
1465 pa_source_assert_ref(s
);
1466 pa_assert_ctl_context();
1467 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1468 pa_assert(pa_source_flat_volume_enabled(s
));
1469 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1471 /* This determines the maximum volume of all streams and sets
1472 * s->real_volume accordingly. */
1474 if (!has_outputs(s
)) {
1475 /* In the special case that we have no source outputs we leave the
1476 * volume unmodified. */
1477 update_real_volume(s
, &s
->reference_volume
, &s
->channel_map
);
1481 pa_cvolume_mute(&s
->real_volume
, s
->channel_map
.channels
);
1483 /* First let's determine the new maximum volume of all outputs
1484 * connected to this source */
1485 get_maximum_output_volume(s
, &s
->real_volume
, &s
->channel_map
);
1486 update_real_volume(s
, &s
->real_volume
, &s
->channel_map
);
1488 /* Then, let's update the real ratios/soft volumes of all outputs
1489 * connected to this source */
1490 compute_real_ratios(s
);
1493 /* Called from main thread. Only called for the root source in shared volume
1494 * cases, except for internal recursive calls. */
1495 static void propagate_reference_volume(pa_source
*s
) {
1496 pa_source_output
*o
;
1499 pa_source_assert_ref(s
);
1500 pa_assert_ctl_context();
1501 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1502 pa_assert(pa_source_flat_volume_enabled(s
));
1504 /* This is called whenever the source volume changes that is not
1505 * caused by a source output volume change. We need to fix up the
1506 * source output volumes accordingly */
1508 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1509 pa_cvolume old_volume
;
1511 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1512 propagate_reference_volume(o
->destination_source
);
1514 /* Since the origin source uses volume sharing, this output's volume
1515 * needs to be updated to match the root source's real volume, but
1516 * that will be done later in update_shared_real_volume(). */
1520 old_volume
= o
->volume
;
1522 /* This basically calculates:
1524 * o->volume := o->reference_volume * o->reference_ratio */
1526 o
->volume
= s
->reference_volume
;
1527 pa_cvolume_remap(&o
->volume
, &s
->channel_map
, &o
->channel_map
);
1528 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1530 /* The volume changed, let's tell people so */
1531 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1533 if (o
->volume_changed
)
1534 o
->volume_changed(o
);
1536 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1541 /* Called from main thread. Only called for the root source in volume sharing
1542 * cases, except for internal recursive calls. The return value indicates
1543 * whether any reference volume actually changed. */
1544 static bool update_reference_volume(pa_source
*s
, const pa_cvolume
*v
, const pa_channel_map
*channel_map
, bool save
) {
1546 bool reference_volume_changed
;
1547 pa_source_output
*o
;
1550 pa_source_assert_ref(s
);
1551 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1553 pa_assert(channel_map
);
1554 pa_assert(pa_cvolume_valid(v
));
1557 pa_cvolume_remap(&volume
, channel_map
, &s
->channel_map
);
1559 reference_volume_changed
= !pa_cvolume_equal(&volume
, &s
->reference_volume
);
1560 s
->reference_volume
= volume
;
1562 s
->save_volume
= (!reference_volume_changed
&& s
->save_volume
) || save
;
1564 if (reference_volume_changed
)
1565 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1566 else if (!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1567 /* If the root source's volume doesn't change, then there can't be any
1568 * changes in the other source in the source tree either.
1570 * It's probably theoretically possible that even if the root source's
1571 * volume changes slightly, some filter source doesn't change its volume
1572 * due to rounding errors. If that happens, we still want to propagate
1573 * the changed root source volume to the sources connected to the
1574 * intermediate source that didn't change its volume. This theoretical
1575 * possibility is the reason why we have that !(s->flags &
1576 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1577 * notice even if we returned here false always if
1578 * reference_volume_changed is false. */
1581 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1582 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1583 update_reference_volume(o
->destination_source
, v
, channel_map
, false);
1589 /* Called from main thread */
1590 void pa_source_set_volume(
1592 const pa_cvolume
*volume
,
1596 pa_cvolume new_reference_volume
;
1597 pa_source
*root_source
;
1599 pa_source_assert_ref(s
);
1600 pa_assert_ctl_context();
1601 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1602 pa_assert(!volume
|| pa_cvolume_valid(volume
));
1603 pa_assert(volume
|| pa_source_flat_volume_enabled(s
));
1604 pa_assert(!volume
|| volume
->channels
== 1 || pa_cvolume_compatible(volume
, &s
->sample_spec
));
1606 /* make sure we don't change the volume in PASSTHROUGH mode ...
1607 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1608 if (pa_source_is_passthrough(s
) && (!volume
|| !pa_cvolume_is_norm(volume
))) {
1609 pa_log_warn("Cannot change volume, source is monitor of a PASSTHROUGH sink");
1613 /* In case of volume sharing, the volume is set for the root source first,
1614 * from which it's then propagated to the sharing sources. */
1615 root_source
= pa_source_get_master(s
);
1617 if (PA_UNLIKELY(!root_source
))
1620 /* As a special exception we accept mono volumes on all sources --
1621 * even on those with more complex channel maps */
1624 if (pa_cvolume_compatible(volume
, &s
->sample_spec
))
1625 new_reference_volume
= *volume
;
1627 new_reference_volume
= s
->reference_volume
;
1628 pa_cvolume_scale(&new_reference_volume
, pa_cvolume_max(volume
));
1631 pa_cvolume_remap(&new_reference_volume
, &s
->channel_map
, &root_source
->channel_map
);
1633 if (update_reference_volume(root_source
, &new_reference_volume
, &root_source
->channel_map
, save
)) {
1634 if (pa_source_flat_volume_enabled(root_source
)) {
1635 /* OK, propagate this volume change back to the outputs */
1636 propagate_reference_volume(root_source
);
1638 /* And now recalculate the real volume */
1639 compute_real_volume(root_source
);
1641 update_real_volume(root_source
, &root_source
->reference_volume
, &root_source
->channel_map
);
1645 /* If volume is NULL we synchronize the source's real and
1646 * reference volumes with the stream volumes. */
1648 pa_assert(pa_source_flat_volume_enabled(root_source
));
1650 /* Ok, let's determine the new real volume */
1651 compute_real_volume(root_source
);
1653 /* Let's 'push' the reference volume if necessary */
1654 pa_cvolume_merge(&new_reference_volume
, &s
->reference_volume
, &root_source
->real_volume
);
1655 /* If the source and it's root don't have the same number of channels, we need to remap */
1656 if (s
!= root_source
&& !pa_channel_map_equal(&s
->channel_map
, &root_source
->channel_map
))
1657 pa_cvolume_remap(&new_reference_volume
, &s
->channel_map
, &root_source
->channel_map
);
1658 update_reference_volume(root_source
, &new_reference_volume
, &root_source
->channel_map
, save
);
1660 /* Now that the reference volume is updated, we can update the streams'
1661 * reference ratios. */
1662 compute_reference_ratios(root_source
);
1665 if (root_source
->set_volume
) {
1666 /* If we have a function set_volume(), then we do not apply a
1667 * soft volume by default. However, set_volume() is free to
1668 * apply one to root_source->soft_volume */
1670 pa_cvolume_reset(&root_source
->soft_volume
, root_source
->sample_spec
.channels
);
1671 if (!(root_source
->flags
& PA_SOURCE_DEFERRED_VOLUME
))
1672 root_source
->set_volume(root_source
);
1675 /* If we have no function set_volume(), then the soft volume
1676 * becomes the real volume */
1677 root_source
->soft_volume
= root_source
->real_volume
;
1679 /* This tells the source that soft volume and/or real volume changed */
1681 pa_assert_se(pa_asyncmsgq_send(root_source
->asyncmsgq
, PA_MSGOBJECT(root_source
), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
) == 0);
1684 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1685 * Only to be called by source implementor */
1686 void pa_source_set_soft_volume(pa_source
*s
, const pa_cvolume
*volume
) {
1688 pa_source_assert_ref(s
);
1689 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1691 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
)
1692 pa_source_assert_io_context(s
);
1694 pa_assert_ctl_context();
1697 pa_cvolume_reset(&s
->soft_volume
, s
->sample_spec
.channels
);
1699 s
->soft_volume
= *volume
;
1701 if (PA_SOURCE_IS_LINKED(s
->state
) && !(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
))
1702 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_VOLUME
, NULL
, 0, NULL
) == 0);
1704 s
->thread_info
.soft_volume
= s
->soft_volume
;
1707 /* Called from the main thread. Only called for the root source in volume sharing
1708 * cases, except for internal recursive calls. */
1709 static void propagate_real_volume(pa_source
*s
, const pa_cvolume
*old_real_volume
) {
1710 pa_source_output
*o
;
1713 pa_source_assert_ref(s
);
1714 pa_assert(old_real_volume
);
1715 pa_assert_ctl_context();
1716 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1718 /* This is called when the hardware's real volume changes due to
1719 * some external event. We copy the real volume into our
1720 * reference volume and then rebuild the stream volumes based on
1721 * i->real_ratio which should stay fixed. */
1723 if (!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1724 if (pa_cvolume_equal(old_real_volume
, &s
->real_volume
))
1727 /* 1. Make the real volume the reference volume */
1728 update_reference_volume(s
, &s
->real_volume
, &s
->channel_map
, true);
1731 if (pa_source_flat_volume_enabled(s
)) {
1733 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1734 pa_cvolume old_volume
= o
->volume
;
1736 /* 2. Since the source's reference and real volumes are equal
1737 * now our ratios should be too. */
1738 o
->reference_ratio
= o
->real_ratio
;
1740 /* 3. Recalculate the new stream reference volume based on the
1741 * reference ratio and the sink's reference volume.
1743 * This basically calculates:
1745 * o->volume = s->reference_volume * o->reference_ratio
1747 * This is identical to propagate_reference_volume() */
1748 o
->volume
= s
->reference_volume
;
1749 pa_cvolume_remap(&o
->volume
, &s
->channel_map
, &o
->channel_map
);
1750 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1752 /* Notify if something changed */
1753 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1755 if (o
->volume_changed
)
1756 o
->volume_changed(o
);
1758 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1761 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1762 propagate_real_volume(o
->destination_source
, old_real_volume
);
1766 /* Something got changed in the hardware. It probably makes sense
1767 * to save changed hw settings given that hw volume changes not
1768 * triggered by PA are almost certainly done by the user. */
1769 if (!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1770 s
->save_volume
= true;
1773 /* Called from io thread */
1774 void pa_source_update_volume_and_mute(pa_source
*s
) {
1776 pa_source_assert_io_context(s
);
1778 pa_asyncmsgq_post(pa_thread_mq_get()->outq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE
, NULL
, 0, NULL
, NULL
);
1781 /* Called from main thread */
1782 const pa_cvolume
*pa_source_get_volume(pa_source
*s
, bool force_refresh
) {
1783 pa_source_assert_ref(s
);
1784 pa_assert_ctl_context();
1785 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1787 if (s
->refresh_volume
|| force_refresh
) {
1788 struct pa_cvolume old_real_volume
;
1790 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1792 old_real_volume
= s
->real_volume
;
1794 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_volume
)
1797 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_VOLUME
, NULL
, 0, NULL
) == 0);
1799 update_real_volume(s
, &s
->real_volume
, &s
->channel_map
);
1800 propagate_real_volume(s
, &old_real_volume
);
1803 return &s
->reference_volume
;
1806 /* Called from main thread. In volume sharing cases, only the root source may
1808 void pa_source_volume_changed(pa_source
*s
, const pa_cvolume
*new_real_volume
) {
1809 pa_cvolume old_real_volume
;
1811 pa_source_assert_ref(s
);
1812 pa_assert_ctl_context();
1813 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1814 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1816 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1818 old_real_volume
= s
->real_volume
;
1819 update_real_volume(s
, new_real_volume
, &s
->channel_map
);
1820 propagate_real_volume(s
, &old_real_volume
);
1823 /* Called from main thread */
1824 void pa_source_set_mute(pa_source
*s
, bool mute
, bool save
) {
1827 pa_source_assert_ref(s
);
1828 pa_assert_ctl_context();
1829 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1831 old_muted
= s
->muted
;
1833 s
->save_muted
= (old_muted
== s
->muted
&& s
->save_muted
) || save
;
1835 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->set_mute
)
1838 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MUTE
, NULL
, 0, NULL
) == 0);
1840 if (old_muted
!= s
->muted
)
1841 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1844 /* Called from main thread */
1845 bool pa_source_get_mute(pa_source
*s
, bool force_refresh
) {
1847 pa_source_assert_ref(s
);
1848 pa_assert_ctl_context();
1849 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1851 if (s
->refresh_muted
|| force_refresh
) {
1852 bool old_muted
= s
->muted
;
1854 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_mute
)
1857 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MUTE
, NULL
, 0, NULL
) == 0);
1859 if (old_muted
!= s
->muted
) {
1860 s
->save_muted
= true;
1862 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1864 /* Make sure the soft mute status stays in sync */
1865 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MUTE
, NULL
, 0, NULL
) == 0);
1872 /* Called from main thread */
1873 void pa_source_mute_changed(pa_source
*s
, bool new_muted
) {
1874 pa_source_assert_ref(s
);
1875 pa_assert_ctl_context();
1876 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1878 /* The source implementor may call this if the mute state changed to make sure everyone is notified */
1880 if (s
->muted
== new_muted
)
1883 s
->muted
= new_muted
;
1884 s
->save_muted
= true;
1886 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1889 /* Called from main thread */
1890 bool pa_source_update_proplist(pa_source
*s
, pa_update_mode_t mode
, pa_proplist
*p
) {
1891 pa_source_assert_ref(s
);
1892 pa_assert_ctl_context();
1895 pa_proplist_update(s
->proplist
, mode
, p
);
1897 if (PA_SOURCE_IS_LINKED(s
->state
)) {
1898 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED
], s
);
1899 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1905 /* Called from main thread */
1906 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1907 void pa_source_set_description(pa_source
*s
, const char *description
) {
1909 pa_source_assert_ref(s
);
1910 pa_assert_ctl_context();
1912 if (!description
&& !pa_proplist_contains(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
))
1915 old
= pa_proplist_gets(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
1917 if (old
&& description
&& pa_streq(old
, description
))
1921 pa_proplist_sets(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
, description
);
1923 pa_proplist_unset(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
1925 if (PA_SOURCE_IS_LINKED(s
->state
)) {
1926 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1927 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED
], s
);
1931 /* Called from main thread */
1932 unsigned pa_source_linked_by(pa_source
*s
) {
1933 pa_source_assert_ref(s
);
1934 pa_assert_ctl_context();
1935 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1937 return pa_idxset_size(s
->outputs
);
1940 /* Called from main thread */
1941 unsigned pa_source_used_by(pa_source
*s
) {
1944 pa_source_assert_ref(s
);
1945 pa_assert_ctl_context();
1946 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1948 ret
= pa_idxset_size(s
->outputs
);
1949 pa_assert(ret
>= s
->n_corked
);
1951 return ret
- s
->n_corked
;
1954 /* Called from main thread */
1955 unsigned pa_source_check_suspend(pa_source
*s
) {
1957 pa_source_output
*o
;
1960 pa_source_assert_ref(s
);
1961 pa_assert_ctl_context();
1963 if (!PA_SOURCE_IS_LINKED(s
->state
))
1968 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1969 pa_source_output_state_t st
;
1971 st
= pa_source_output_get_state(o
);
1973 /* We do not assert here. It is perfectly valid for a source output to
1974 * be in the INIT state (i.e. created, marked done but not yet put)
1975 * and we should not care if it's unlinked as it won't contribute
1976 * towards our busy status.
1978 if (!PA_SOURCE_OUTPUT_IS_LINKED(st
))
1981 if (st
== PA_SOURCE_OUTPUT_CORKED
)
1984 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND
)
1993 /* Called from the IO thread */
1994 static void sync_output_volumes_within_thread(pa_source
*s
) {
1995 pa_source_output
*o
;
1998 pa_source_assert_ref(s
);
1999 pa_source_assert_io_context(s
);
2001 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
2002 if (pa_cvolume_equal(&o
->thread_info
.soft_volume
, &o
->soft_volume
))
2005 o
->thread_info
.soft_volume
= o
->soft_volume
;
2006 //pa_source_output_request_rewind(o, 0, true, false, false);
2010 /* Called from the IO thread. Only called for the root source in volume sharing
2011 * cases, except for internal recursive calls. */
2012 static void set_shared_volume_within_thread(pa_source
*s
) {
2013 pa_source_output
*o
;
2016 pa_source_assert_ref(s
);
2018 PA_MSGOBJECT(s
)->process_msg(PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED
, NULL
, 0, NULL
);
2020 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
2021 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
2022 set_shared_volume_within_thread(o
->destination_source
);
2026 /* Called from IO thread, except when it is not */
2027 int pa_source_process_msg(pa_msgobject
*object
, int code
, void *userdata
, int64_t offset
, pa_memchunk
*chunk
) {
2028 pa_source
*s
= PA_SOURCE(object
);
2029 pa_source_assert_ref(s
);
2031 switch ((pa_source_message_t
) code
) {
2033 case PA_SOURCE_MESSAGE_ADD_OUTPUT
: {
2034 pa_source_output
*o
= PA_SOURCE_OUTPUT(userdata
);
2036 pa_hashmap_put(s
->thread_info
.outputs
, PA_UINT32_TO_PTR(o
->index
), pa_source_output_ref(o
));
2038 if (o
->direct_on_input
) {
2039 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
2040 pa_hashmap_put(o
->thread_info
.direct_on_input
->thread_info
.direct_outputs
, PA_UINT32_TO_PTR(o
->index
), o
);
2043 pa_assert(!o
->thread_info
.attached
);
2044 o
->thread_info
.attached
= true;
2049 pa_source_output_set_state_within_thread(o
, o
->state
);
2051 if (o
->thread_info
.requested_source_latency
!= (pa_usec_t
) -1)
2052 pa_source_output_set_requested_latency_within_thread(o
, o
->thread_info
.requested_source_latency
);
2054 pa_source_output_update_max_rewind(o
, s
->thread_info
.max_rewind
);
2056 /* We don't just invalidate the requested latency here,
2057 * because if we are in a move we might need to fix up the
2058 * requested latency. */
2059 pa_source_output_set_requested_latency_within_thread(o
, o
->thread_info
.requested_source_latency
);
2061 /* In flat volume mode we need to update the volume as
2063 return object
->process_msg(object
, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
);
2066 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT
: {
2067 pa_source_output
*o
= PA_SOURCE_OUTPUT(userdata
);
2069 pa_source_output_set_state_within_thread(o
, o
->state
);
2074 pa_assert(o
->thread_info
.attached
);
2075 o
->thread_info
.attached
= false;
2077 if (o
->thread_info
.direct_on_input
) {
2078 pa_hashmap_remove(o
->thread_info
.direct_on_input
->thread_info
.direct_outputs
, PA_UINT32_TO_PTR(o
->index
));
2079 o
->thread_info
.direct_on_input
= NULL
;
2082 if (pa_hashmap_remove(s
->thread_info
.outputs
, PA_UINT32_TO_PTR(o
->index
)))
2083 pa_source_output_unref(o
);
2085 pa_source_invalidate_requested_latency(s
, true);
2087 /* In flat volume mode we need to update the volume as
2089 return object
->process_msg(object
, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
);
2092 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
: {
2093 pa_source
*root_source
= pa_source_get_master(s
);
2095 if (PA_LIKELY(root_source
))
2096 set_shared_volume_within_thread(root_source
);
2101 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED
:
2103 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) {
2105 pa_source_volume_change_push(s
);
2107 /* Fall through ... */
2109 case PA_SOURCE_MESSAGE_SET_VOLUME
:
2111 if (!pa_cvolume_equal(&s
->thread_info
.soft_volume
, &s
->soft_volume
)) {
2112 s
->thread_info
.soft_volume
= s
->soft_volume
;
2115 /* Fall through ... */
2117 case PA_SOURCE_MESSAGE_SYNC_VOLUMES
:
2118 sync_output_volumes_within_thread(s
);
2121 case PA_SOURCE_MESSAGE_GET_VOLUME
:
2123 if ((s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_volume
) {
2125 pa_source_volume_change_flush(s
);
2126 pa_sw_cvolume_divide(&s
->thread_info
.current_hw_volume
, &s
->real_volume
, &s
->soft_volume
);
2129 /* In case source implementor reset SW volume. */
2130 if (!pa_cvolume_equal(&s
->thread_info
.soft_volume
, &s
->soft_volume
)) {
2131 s
->thread_info
.soft_volume
= s
->soft_volume
;
2136 case PA_SOURCE_MESSAGE_SET_MUTE
:
2138 if (s
->thread_info
.soft_muted
!= s
->muted
) {
2139 s
->thread_info
.soft_muted
= s
->muted
;
2142 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
&& s
->set_mute
)
2147 case PA_SOURCE_MESSAGE_GET_MUTE
:
2149 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
&& s
->get_mute
)
2154 case PA_SOURCE_MESSAGE_SET_STATE
: {
2156 bool suspend_change
=
2157 (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
&& PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata
))) ||
2158 (PA_SOURCE_IS_OPENED(s
->thread_info
.state
) && PA_PTR_TO_UINT(userdata
) == PA_SOURCE_SUSPENDED
);
2160 s
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
2162 if (suspend_change
) {
2163 pa_source_output
*o
;
2166 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
2167 if (o
->suspend_within_thread
)
2168 o
->suspend_within_thread(o
, s
->thread_info
.state
== PA_SOURCE_SUSPENDED
);
2174 case PA_SOURCE_MESSAGE_DETACH
:
2176 /* Detach all streams */
2177 pa_source_detach_within_thread(s
);
2180 case PA_SOURCE_MESSAGE_ATTACH
:
2182 /* Reattach all streams */
2183 pa_source_attach_within_thread(s
);
2186 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY
: {
2188 pa_usec_t
*usec
= userdata
;
2189 *usec
= pa_source_get_requested_latency_within_thread(s
);
2191 /* Yes, that's right, the IO thread will see -1 when no
2192 * explicit requested latency is configured, the main
2193 * thread will see max_latency */
2194 if (*usec
== (pa_usec_t
) -1)
2195 *usec
= s
->thread_info
.max_latency
;
2200 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
: {
2201 pa_usec_t
*r
= userdata
;
2203 pa_source_set_latency_range_within_thread(s
, r
[0], r
[1]);
2208 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
: {
2209 pa_usec_t
*r
= userdata
;
2211 r
[0] = s
->thread_info
.min_latency
;
2212 r
[1] = s
->thread_info
.max_latency
;
2217 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY
:
2219 *((pa_usec_t
*) userdata
) = s
->thread_info
.fixed_latency
;
2222 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY
:
2224 pa_source_set_fixed_latency_within_thread(s
, (pa_usec_t
) offset
);
2227 case PA_SOURCE_MESSAGE_GET_MAX_REWIND
:
2229 *((size_t*) userdata
) = s
->thread_info
.max_rewind
;
2232 case PA_SOURCE_MESSAGE_SET_MAX_REWIND
:
2234 pa_source_set_max_rewind_within_thread(s
, (size_t) offset
);
2237 case PA_SOURCE_MESSAGE_GET_LATENCY
:
2239 if (s
->monitor_of
) {
2240 *((pa_usec_t
*) userdata
) = 0;
2244 /* Implementors need to overwrite this implementation! */
2247 case PA_SOURCE_MESSAGE_SET_PORT
:
2249 pa_assert(userdata
);
2251 struct source_message_set_port
*msg_data
= userdata
;
2252 msg_data
->ret
= s
->set_port(s
, msg_data
->port
);
2256 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE
:
2257 /* This message is sent from IO-thread and handled in main thread. */
2258 pa_assert_ctl_context();
2260 /* Make sure we're not messing with main thread when no longer linked */
2261 if (!PA_SOURCE_IS_LINKED(s
->state
))
2264 pa_source_get_volume(s
, true);
2265 pa_source_get_mute(s
, true);
2268 case PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET
:
2269 s
->thread_info
.latency_offset
= offset
;
2272 case PA_SOURCE_MESSAGE_MAX
:
2279 /* Called from main thread */
2280 int pa_source_suspend_all(pa_core
*c
, bool suspend
, pa_suspend_cause_t cause
) {
2285 pa_core_assert_ref(c
);
2286 pa_assert_ctl_context();
2287 pa_assert(cause
!= 0);
2289 for (source
= PA_SOURCE(pa_idxset_first(c
->sources
, &idx
)); source
; source
= PA_SOURCE(pa_idxset_next(c
->sources
, &idx
))) {
2292 if (source
->monitor_of
)
2295 if ((r
= pa_source_suspend(source
, suspend
, cause
)) < 0)
2302 /* Called from main thread */
2303 void pa_source_detach(pa_source
*s
) {
2304 pa_source_assert_ref(s
);
2305 pa_assert_ctl_context();
2306 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
2308 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_DETACH
, NULL
, 0, NULL
) == 0);
2311 /* Called from main thread */
2312 void pa_source_attach(pa_source
*s
) {
2313 pa_source_assert_ref(s
);
2314 pa_assert_ctl_context();
2315 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
2317 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_ATTACH
, NULL
, 0, NULL
) == 0);
2320 /* Called from IO thread */
2321 void pa_source_detach_within_thread(pa_source
*s
) {
2322 pa_source_output
*o
;
2325 pa_source_assert_ref(s
);
2326 pa_source_assert_io_context(s
);
2327 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
2329 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2334 /* Called from IO thread */
2335 void pa_source_attach_within_thread(pa_source
*s
) {
2336 pa_source_output
*o
;
2339 pa_source_assert_ref(s
);
2340 pa_source_assert_io_context(s
);
2341 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
2343 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2348 /* Called from IO thread */
2349 pa_usec_t
pa_source_get_requested_latency_within_thread(pa_source
*s
) {
2350 pa_usec_t result
= (pa_usec_t
) -1;
2351 pa_source_output
*o
;
2354 pa_source_assert_ref(s
);
2355 pa_source_assert_io_context(s
);
2357 if (!(s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
2358 return PA_CLAMP(s
->thread_info
.fixed_latency
, s
->thread_info
.min_latency
, s
->thread_info
.max_latency
);
2360 if (s
->thread_info
.requested_latency_valid
)
2361 return s
->thread_info
.requested_latency
;
2363 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2364 if (o
->thread_info
.requested_source_latency
!= (pa_usec_t
) -1 &&
2365 (result
== (pa_usec_t
) -1 || result
> o
->thread_info
.requested_source_latency
))
2366 result
= o
->thread_info
.requested_source_latency
;
2368 if (result
!= (pa_usec_t
) -1)
2369 result
= PA_CLAMP(result
, s
->thread_info
.min_latency
, s
->thread_info
.max_latency
);
2371 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2372 /* Only cache this if we are fully set up */
2373 s
->thread_info
.requested_latency
= result
;
2374 s
->thread_info
.requested_latency_valid
= true;
2380 /* Called from main thread */
2381 pa_usec_t
pa_source_get_requested_latency(pa_source
*s
) {
2384 pa_source_assert_ref(s
);
2385 pa_assert_ctl_context();
2386 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
2388 if (s
->state
== PA_SOURCE_SUSPENDED
)
2391 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
2396 /* Called from IO thread */
2397 void pa_source_set_max_rewind_within_thread(pa_source
*s
, size_t max_rewind
) {
2398 pa_source_output
*o
;
2401 pa_source_assert_ref(s
);
2402 pa_source_assert_io_context(s
);
2404 if (max_rewind
== s
->thread_info
.max_rewind
)
2407 s
->thread_info
.max_rewind
= max_rewind
;
2409 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
))
2410 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2411 pa_source_output_update_max_rewind(o
, s
->thread_info
.max_rewind
);
2414 /* Called from main thread */
2415 void pa_source_set_max_rewind(pa_source
*s
, size_t max_rewind
) {
2416 pa_source_assert_ref(s
);
2417 pa_assert_ctl_context();
2419 if (PA_SOURCE_IS_LINKED(s
->state
))
2420 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MAX_REWIND
, NULL
, max_rewind
, NULL
) == 0);
2422 pa_source_set_max_rewind_within_thread(s
, max_rewind
);
2425 /* Called from IO thread */
2426 void pa_source_invalidate_requested_latency(pa_source
*s
, bool dynamic
) {
2427 pa_source_output
*o
;
2430 pa_source_assert_ref(s
);
2431 pa_source_assert_io_context(s
);
2433 if ((s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
2434 s
->thread_info
.requested_latency_valid
= false;
2438 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2440 if (s
->update_requested_latency
)
2441 s
->update_requested_latency(s
);
2443 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
2444 if (o
->update_source_requested_latency
)
2445 o
->update_source_requested_latency(o
);
2449 pa_sink_invalidate_requested_latency(s
->monitor_of
, dynamic
);
2452 /* Called from main thread */
2453 void pa_source_set_latency_range(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
2454 pa_source_assert_ref(s
);
2455 pa_assert_ctl_context();
2457 /* min_latency == 0: no limit
2458 * min_latency anything else: specified limit
2460 * Similar for max_latency */
2462 if (min_latency
< ABSOLUTE_MIN_LATENCY
)
2463 min_latency
= ABSOLUTE_MIN_LATENCY
;
2465 if (max_latency
<= 0 ||
2466 max_latency
> ABSOLUTE_MAX_LATENCY
)
2467 max_latency
= ABSOLUTE_MAX_LATENCY
;
2469 pa_assert(min_latency
<= max_latency
);
2471 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2472 pa_assert((min_latency
== ABSOLUTE_MIN_LATENCY
&&
2473 max_latency
== ABSOLUTE_MAX_LATENCY
) ||
2474 (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
));
2476 if (PA_SOURCE_IS_LINKED(s
->state
)) {
2482 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
2484 pa_source_set_latency_range_within_thread(s
, min_latency
, max_latency
);
2487 /* Called from main thread */
2488 void pa_source_get_latency_range(pa_source
*s
, pa_usec_t
*min_latency
, pa_usec_t
*max_latency
) {
2489 pa_source_assert_ref(s
);
2490 pa_assert_ctl_context();
2491 pa_assert(min_latency
);
2492 pa_assert(max_latency
);
2494 if (PA_SOURCE_IS_LINKED(s
->state
)) {
2495 pa_usec_t r
[2] = { 0, 0 };
2497 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
2499 *min_latency
= r
[0];
2500 *max_latency
= r
[1];
2502 *min_latency
= s
->thread_info
.min_latency
;
2503 *max_latency
= s
->thread_info
.max_latency
;
2507 /* Called from IO thread, and from main thread before pa_source_put() is called */
2508 void pa_source_set_latency_range_within_thread(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
2509 pa_source_assert_ref(s
);
2510 pa_source_assert_io_context(s
);
2512 pa_assert(min_latency
>= ABSOLUTE_MIN_LATENCY
);
2513 pa_assert(max_latency
<= ABSOLUTE_MAX_LATENCY
);
2514 pa_assert(min_latency
<= max_latency
);
2516 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2517 pa_assert((min_latency
== ABSOLUTE_MIN_LATENCY
&&
2518 max_latency
== ABSOLUTE_MAX_LATENCY
) ||
2519 (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) ||
2522 if (s
->thread_info
.min_latency
== min_latency
&&
2523 s
->thread_info
.max_latency
== max_latency
)
2526 s
->thread_info
.min_latency
= min_latency
;
2527 s
->thread_info
.max_latency
= max_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_latency_range
)
2535 o
->update_source_latency_range(o
);
2538 pa_source_invalidate_requested_latency(s
, false);
2541 /* Called from main thread, before the source is put */
2542 void pa_source_set_fixed_latency(pa_source
*s
, pa_usec_t latency
) {
2543 pa_source_assert_ref(s
);
2544 pa_assert_ctl_context();
2546 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) {
2547 pa_assert(latency
== 0);
2551 if (latency
< ABSOLUTE_MIN_LATENCY
)
2552 latency
= ABSOLUTE_MIN_LATENCY
;
2554 if (latency
> ABSOLUTE_MAX_LATENCY
)
2555 latency
= ABSOLUTE_MAX_LATENCY
;
2557 if (PA_SOURCE_IS_LINKED(s
->state
))
2558 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY
, NULL
, (int64_t) latency
, NULL
) == 0);
2560 s
->thread_info
.fixed_latency
= latency
;
2563 /* Called from main thread */
2564 pa_usec_t
pa_source_get_fixed_latency(pa_source
*s
) {
2567 pa_source_assert_ref(s
);
2568 pa_assert_ctl_context();
2570 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
)
2573 if (PA_SOURCE_IS_LINKED(s
->state
))
2574 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY
, &latency
, 0, NULL
) == 0);
2576 latency
= s
->thread_info
.fixed_latency
;
2581 /* Called from IO thread */
2582 void pa_source_set_fixed_latency_within_thread(pa_source
*s
, pa_usec_t latency
) {
2583 pa_source_assert_ref(s
);
2584 pa_source_assert_io_context(s
);
2586 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) {
2587 pa_assert(latency
== 0);
2588 s
->thread_info
.fixed_latency
= 0;
2593 pa_assert(latency
>= ABSOLUTE_MIN_LATENCY
);
2594 pa_assert(latency
<= ABSOLUTE_MAX_LATENCY
);
2596 if (s
->thread_info
.fixed_latency
== latency
)
2599 s
->thread_info
.fixed_latency
= latency
;
2601 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2602 pa_source_output
*o
;
2605 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2606 if (o
->update_source_fixed_latency
)
2607 o
->update_source_fixed_latency(o
);
2610 pa_source_invalidate_requested_latency(s
, false);
2613 /* Called from main thread */
2614 void pa_source_set_latency_offset(pa_source
*s
, int64_t offset
) {
2615 pa_source_assert_ref(s
);
2617 s
->latency_offset
= offset
;
2619 if (PA_SOURCE_IS_LINKED(s
->state
))
2620 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET
, NULL
, offset
, NULL
) == 0);
2622 s
->thread_info
.latency_offset
= offset
;
2625 /* Called from main thread */
2626 size_t pa_source_get_max_rewind(pa_source
*s
) {
2628 pa_assert_ctl_context();
2629 pa_source_assert_ref(s
);
2631 if (!PA_SOURCE_IS_LINKED(s
->state
))
2632 return s
->thread_info
.max_rewind
;
2634 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MAX_REWIND
, &r
, 0, NULL
) == 0);
2639 /* Called from main context */
2640 int pa_source_set_port(pa_source
*s
, const char *name
, bool save
) {
2641 pa_device_port
*port
;
2644 pa_source_assert_ref(s
);
2645 pa_assert_ctl_context();
2648 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s
->index
, s
->name
);
2649 return -PA_ERR_NOTIMPLEMENTED
;
2653 return -PA_ERR_NOENTITY
;
2655 if (!(port
= pa_hashmap_get(s
->ports
, name
)))
2656 return -PA_ERR_NOENTITY
;
2658 if (s
->active_port
== port
) {
2659 s
->save_port
= s
->save_port
|| save
;
2663 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) {
2664 struct source_message_set_port msg
= { .port
= port
, .ret
= 0 };
2665 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_PORT
, &msg
, 0, NULL
) == 0);
2669 ret
= s
->set_port(s
, port
);
2672 return -PA_ERR_NOENTITY
;
2674 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
2676 pa_log_info("Changed port of source %u \"%s\" to %s", s
->index
, s
->name
, port
->name
);
2678 s
->active_port
= port
;
2679 s
->save_port
= save
;
2681 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PORT_CHANGED
], s
);
2686 PA_STATIC_FLIST_DECLARE(pa_source_volume_change
, 0, pa_xfree
);
2688 /* Called from the IO thread. */
2689 static pa_source_volume_change
*pa_source_volume_change_new(pa_source
*s
) {
2690 pa_source_volume_change
*c
;
2691 if (!(c
= pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change
))))
2692 c
= pa_xnew(pa_source_volume_change
, 1);
2694 PA_LLIST_INIT(pa_source_volume_change
, c
);
2696 pa_cvolume_reset(&c
->hw_volume
, s
->sample_spec
.channels
);
2700 /* Called from the IO thread. */
2701 static void pa_source_volume_change_free(pa_source_volume_change
*c
) {
2703 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change
), c
) < 0)
2707 /* Called from the IO thread. */
2708 void pa_source_volume_change_push(pa_source
*s
) {
2709 pa_source_volume_change
*c
= NULL
;
2710 pa_source_volume_change
*nc
= NULL
;
2711 uint32_t safety_margin
= s
->thread_info
.volume_change_safety_margin
;
2713 const char *direction
= NULL
;
2716 nc
= pa_source_volume_change_new(s
);
2718 /* NOTE: There is already more different volumes in pa_source that I can remember.
2719 * Adding one more volume for HW would get us rid of this, but I am trying
2720 * to survive with the ones we already have. */
2721 pa_sw_cvolume_divide(&nc
->hw_volume
, &s
->real_volume
, &s
->soft_volume
);
2723 if (!s
->thread_info
.volume_changes
&& pa_cvolume_equal(&nc
->hw_volume
, &s
->thread_info
.current_hw_volume
)) {
2724 pa_log_debug("Volume not changing");
2725 pa_source_volume_change_free(nc
);
2729 nc
->at
= pa_source_get_latency_within_thread(s
);
2730 nc
->at
+= pa_rtclock_now() + s
->thread_info
.volume_change_extra_delay
;
2732 if (s
->thread_info
.volume_changes_tail
) {
2733 for (c
= s
->thread_info
.volume_changes_tail
; c
; c
= c
->prev
) {
2734 /* If volume is going up let's do it a bit late. If it is going
2735 * down let's do it a bit early. */
2736 if (pa_cvolume_avg(&nc
->hw_volume
) > pa_cvolume_avg(&c
->hw_volume
)) {
2737 if (nc
->at
+ safety_margin
> c
->at
) {
2738 nc
->at
+= safety_margin
;
2743 else if (nc
->at
- safety_margin
> c
->at
) {
2744 nc
->at
-= safety_margin
;
2752 if (pa_cvolume_avg(&nc
->hw_volume
) > pa_cvolume_avg(&s
->thread_info
.current_hw_volume
)) {
2753 nc
->at
+= safety_margin
;
2756 nc
->at
-= safety_margin
;
2759 PA_LLIST_PREPEND(pa_source_volume_change
, s
->thread_info
.volume_changes
, nc
);
2762 PA_LLIST_INSERT_AFTER(pa_source_volume_change
, s
->thread_info
.volume_changes
, c
, nc
);
2765 pa_log_debug("Volume going %s to %d at %llu", direction
, pa_cvolume_avg(&nc
->hw_volume
), (long long unsigned) nc
->at
);
2767 /* We can ignore volume events that came earlier but should happen later than this. */
2768 PA_LLIST_FOREACH(c
, nc
->next
) {
2769 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c
->hw_volume
), (long long unsigned) c
->at
);
2770 pa_source_volume_change_free(c
);
2773 s
->thread_info
.volume_changes_tail
= nc
;
2776 /* Called from the IO thread. */
2777 static void pa_source_volume_change_flush(pa_source
*s
) {
2778 pa_source_volume_change
*c
= s
->thread_info
.volume_changes
;
2780 s
->thread_info
.volume_changes
= NULL
;
2781 s
->thread_info
.volume_changes_tail
= NULL
;
2783 pa_source_volume_change
*next
= c
->next
;
2784 pa_source_volume_change_free(c
);
2789 /* Called from the IO thread. */
2790 bool pa_source_volume_change_apply(pa_source
*s
, pa_usec_t
*usec_to_next
) {
2796 if (!s
->thread_info
.volume_changes
|| !PA_SOURCE_IS_LINKED(s
->state
)) {
2802 pa_assert(s
->write_volume
);
2804 now
= pa_rtclock_now();
2806 while (s
->thread_info
.volume_changes
&& now
>= s
->thread_info
.volume_changes
->at
) {
2807 pa_source_volume_change
*c
= s
->thread_info
.volume_changes
;
2808 PA_LLIST_REMOVE(pa_source_volume_change
, s
->thread_info
.volume_changes
, c
);
2809 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2810 pa_cvolume_avg(&c
->hw_volume
), (long long unsigned) c
->at
, (long long unsigned) (now
- c
->at
));
2812 s
->thread_info
.current_hw_volume
= c
->hw_volume
;
2813 pa_source_volume_change_free(c
);
2819 if (s
->thread_info
.volume_changes
) {
2821 *usec_to_next
= s
->thread_info
.volume_changes
->at
- now
;
2822 if (pa_log_ratelimit(PA_LOG_DEBUG
))
2823 pa_log_debug("Next volume change in %lld usec", (long long) (s
->thread_info
.volume_changes
->at
- now
));
2828 s
->thread_info
.volume_changes_tail
= NULL
;
2833 /* Called from the main thread */
2834 /* Gets the list of formats supported by the source. The members and idxset must
2835 * be freed by the caller. */
2836 pa_idxset
* pa_source_get_formats(pa_source
*s
) {
2841 if (s
->get_formats
) {
2842 /* Source supports format query, all is good */
2843 ret
= s
->get_formats(s
);
2845 /* Source doesn't support format query, so assume it does PCM */
2846 pa_format_info
*f
= pa_format_info_new();
2847 f
->encoding
= PA_ENCODING_PCM
;
2849 ret
= pa_idxset_new(NULL
, NULL
);
2850 pa_idxset_put(ret
, f
, NULL
);
2856 /* Called from the main thread */
2857 /* Checks if the source can accept this format */
2858 bool pa_source_check_format(pa_source
*s
, pa_format_info
*f
) {
2859 pa_idxset
*formats
= NULL
;
2865 formats
= pa_source_get_formats(s
);
2868 pa_format_info
*finfo_device
;
2871 PA_IDXSET_FOREACH(finfo_device
, formats
, i
) {
2872 if (pa_format_info_is_compatible(finfo_device
, f
)) {
2878 pa_idxset_free(formats
, (pa_free_cb_t
) pa_format_info_free
);
2884 /* Called from the main thread */
2885 /* Calculates the intersection between formats supported by the source and
2886 * in_formats, and returns these, in the order of the source's formats. */
2887 pa_idxset
* pa_source_check_formats(pa_source
*s
, pa_idxset
*in_formats
) {
2888 pa_idxset
*out_formats
= pa_idxset_new(NULL
, NULL
), *source_formats
= NULL
;
2889 pa_format_info
*f_source
, *f_in
;
2894 if (!in_formats
|| pa_idxset_isempty(in_formats
))
2897 source_formats
= pa_source_get_formats(s
);
2899 PA_IDXSET_FOREACH(f_source
, source_formats
, i
) {
2900 PA_IDXSET_FOREACH(f_in
, in_formats
, j
) {
2901 if (pa_format_info_is_compatible(f_source
, f_in
))
2902 pa_idxset_put(out_formats
, pa_format_info_copy(f_in
), NULL
);
2908 pa_idxset_free(source_formats
, (pa_free_cb_t
) pa_format_info_free
);