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
, data
->card
);
222 pa_device_init_icon(data
->proplist
, false);
223 pa_device_init_intended_roles(data
->proplist
);
225 if (!data
->active_port
) {
226 pa_device_port
*p
= pa_device_port_find_best(data
->ports
);
228 pa_source_new_data_set_port(data
, p
->name
);
231 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_FIXATE
], data
) < 0) {
233 pa_namereg_unregister(core
, name
);
237 s
->parent
.parent
.free
= source_free
;
238 s
->parent
.process_msg
= pa_source_process_msg
;
241 s
->state
= PA_SOURCE_INIT
;
244 s
->suspend_cause
= data
->suspend_cause
;
245 pa_source_set_mixer_dirty(s
, false);
246 s
->name
= pa_xstrdup(name
);
247 s
->proplist
= pa_proplist_copy(data
->proplist
);
248 s
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
249 s
->module
= data
->module
;
250 s
->card
= data
->card
;
252 s
->priority
= pa_device_init_priority(s
->proplist
);
254 s
->sample_spec
= data
->sample_spec
;
255 s
->channel_map
= data
->channel_map
;
256 s
->default_sample_rate
= s
->sample_spec
.rate
;
258 if (data
->alternate_sample_rate_is_set
)
259 s
->alternate_sample_rate
= data
->alternate_sample_rate
;
261 s
->alternate_sample_rate
= s
->core
->alternate_sample_rate
;
263 if (s
->sample_spec
.rate
== s
->alternate_sample_rate
) {
264 pa_log_warn("Default and alternate sample rates are the same.");
265 s
->alternate_sample_rate
= 0;
268 s
->outputs
= pa_idxset_new(NULL
, NULL
);
270 s
->monitor_of
= NULL
;
271 s
->output_from_master
= NULL
;
273 s
->reference_volume
= s
->real_volume
= data
->volume
;
274 pa_cvolume_reset(&s
->soft_volume
, s
->sample_spec
.channels
);
275 s
->base_volume
= PA_VOLUME_NORM
;
276 s
->n_volume_steps
= PA_VOLUME_NORM
+1;
277 s
->muted
= data
->muted
;
278 s
->refresh_volume
= s
->refresh_muted
= false;
285 /* As a minor optimization we just steal the list instead of
287 s
->ports
= data
->ports
;
290 s
->active_port
= NULL
;
291 s
->save_port
= false;
293 if (data
->active_port
)
294 if ((s
->active_port
= pa_hashmap_get(s
->ports
, data
->active_port
)))
295 s
->save_port
= data
->save_port
;
297 /* Hopefully the active port has already been assigned in the previous call
298 to pa_device_port_find_best, but better safe than sorry */
300 s
->active_port
= pa_device_port_find_best(s
->ports
);
303 s
->latency_offset
= s
->active_port
->latency_offset
;
305 s
->latency_offset
= 0;
307 s
->save_volume
= data
->save_volume
;
308 s
->save_muted
= data
->save_muted
;
310 pa_silence_memchunk_get(
311 &core
->silence_cache
,
317 s
->thread_info
.rtpoll
= NULL
;
318 s
->thread_info
.outputs
= pa_hashmap_new_full(pa_idxset_trivial_hash_func
, pa_idxset_trivial_compare_func
, NULL
,
319 (pa_free_cb_t
) pa_source_output_unref
);
320 s
->thread_info
.soft_volume
= s
->soft_volume
;
321 s
->thread_info
.soft_muted
= s
->muted
;
322 s
->thread_info
.state
= s
->state
;
323 s
->thread_info
.max_rewind
= 0;
324 s
->thread_info
.requested_latency_valid
= false;
325 s
->thread_info
.requested_latency
= 0;
326 s
->thread_info
.min_latency
= ABSOLUTE_MIN_LATENCY
;
327 s
->thread_info
.max_latency
= ABSOLUTE_MAX_LATENCY
;
328 s
->thread_info
.fixed_latency
= flags
& PA_SOURCE_DYNAMIC_LATENCY
? 0 : DEFAULT_FIXED_LATENCY
;
330 PA_LLIST_HEAD_INIT(pa_source_volume_change
, s
->thread_info
.volume_changes
);
331 s
->thread_info
.volume_changes_tail
= NULL
;
332 pa_sw_cvolume_multiply(&s
->thread_info
.current_hw_volume
, &s
->soft_volume
, &s
->real_volume
);
333 s
->thread_info
.volume_change_safety_margin
= core
->deferred_volume_safety_margin_usec
;
334 s
->thread_info
.volume_change_extra_delay
= core
->deferred_volume_extra_delay_usec
;
335 s
->thread_info
.latency_offset
= s
->latency_offset
;
337 /* FIXME: This should probably be moved to pa_source_put() */
338 pa_assert_se(pa_idxset_put(core
->sources
, s
, &s
->index
) >= 0);
341 pa_assert_se(pa_idxset_put(s
->card
->sources
, s
, NULL
) >= 0);
343 pt
= pa_proplist_to_string_sep(s
->proplist
, "\n ");
344 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
347 pa_sample_spec_snprint(st
, sizeof(st
), &s
->sample_spec
),
348 pa_channel_map_snprint(cm
, sizeof(cm
), &s
->channel_map
),
355 /* Called from main context */
356 static int source_set_state(pa_source
*s
, pa_source_state_t state
) {
359 pa_source_state_t original_state
;
362 pa_assert_ctl_context();
364 if (s
->state
== state
)
367 original_state
= s
->state
;
370 (original_state
== PA_SOURCE_SUSPENDED
&& PA_SOURCE_IS_OPENED(state
)) ||
371 (PA_SOURCE_IS_OPENED(original_state
) && state
== PA_SOURCE_SUSPENDED
);
374 if ((ret
= s
->set_state(s
, state
)) < 0)
378 if ((ret
= pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
)) < 0) {
381 s
->set_state(s
, original_state
);
388 if (state
!= PA_SOURCE_UNLINKED
) { /* if we enter UNLINKED state pa_source_unlink() will fire the appropriate events */
389 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_STATE_CHANGED
], s
);
390 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
393 if (suspend_change
) {
397 /* We're suspending or resuming, tell everyone about it */
399 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
)
400 if (s
->state
== PA_SOURCE_SUSPENDED
&&
401 (o
->flags
& PA_SOURCE_OUTPUT_KILL_ON_SUSPEND
))
402 pa_source_output_kill(o
);
404 o
->suspend(o
, state
== PA_SOURCE_SUSPENDED
);
410 void pa_source_set_get_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
416 void pa_source_set_set_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
417 pa_source_flags_t flags
;
420 pa_assert(!s
->write_volume
|| cb
);
424 /* Save the current flags so we can tell if they've changed */
428 /* The source implementor is responsible for setting decibel volume support */
429 s
->flags
|= PA_SOURCE_HW_VOLUME_CTRL
;
431 s
->flags
&= ~PA_SOURCE_HW_VOLUME_CTRL
;
432 /* See note below in pa_source_put() about volume sharing and decibel volumes */
433 pa_source_enable_decibel_volume(s
, !(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
436 /* If the flags have changed after init, let any clients know via a change event */
437 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
438 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
441 void pa_source_set_write_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
442 pa_source_flags_t flags
;
445 pa_assert(!cb
|| s
->set_volume
);
447 s
->write_volume
= cb
;
449 /* Save the current flags so we can tell if they've changed */
453 s
->flags
|= PA_SOURCE_DEFERRED_VOLUME
;
455 s
->flags
&= ~PA_SOURCE_DEFERRED_VOLUME
;
457 /* If the flags have changed after init, let any clients know via a change event */
458 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
459 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
462 void pa_source_set_get_mute_callback(pa_source
*s
, pa_source_cb_t cb
) {
468 void pa_source_set_set_mute_callback(pa_source
*s
, pa_source_cb_t cb
) {
469 pa_source_flags_t flags
;
475 /* Save the current flags so we can tell if they've changed */
479 s
->flags
|= PA_SOURCE_HW_MUTE_CTRL
;
481 s
->flags
&= ~PA_SOURCE_HW_MUTE_CTRL
;
483 /* If the flags have changed after init, let any clients know via a change event */
484 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
485 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
488 static void enable_flat_volume(pa_source
*s
, bool enable
) {
489 pa_source_flags_t flags
;
493 /* Always follow the overall user preference here */
494 enable
= enable
&& s
->core
->flat_volumes
;
496 /* Save the current flags so we can tell if they've changed */
500 s
->flags
|= PA_SOURCE_FLAT_VOLUME
;
502 s
->flags
&= ~PA_SOURCE_FLAT_VOLUME
;
504 /* If the flags have changed after init, let any clients know via a change event */
505 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
506 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
509 void pa_source_enable_decibel_volume(pa_source
*s
, bool enable
) {
510 pa_source_flags_t flags
;
514 /* Save the current flags so we can tell if they've changed */
518 s
->flags
|= PA_SOURCE_DECIBEL_VOLUME
;
519 enable_flat_volume(s
, true);
521 s
->flags
&= ~PA_SOURCE_DECIBEL_VOLUME
;
522 enable_flat_volume(s
, false);
525 /* If the flags have changed after init, let any clients know via a change event */
526 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
527 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
530 /* Called from main context */
531 void pa_source_put(pa_source
*s
) {
532 pa_source_assert_ref(s
);
533 pa_assert_ctl_context();
535 pa_assert(s
->state
== PA_SOURCE_INIT
);
536 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) || s
->output_from_master
);
538 /* The following fields must be initialized properly when calling _put() */
539 pa_assert(s
->asyncmsgq
);
540 pa_assert(s
->thread_info
.min_latency
<= s
->thread_info
.max_latency
);
542 /* Generally, flags should be initialized via pa_source_new(). As a
543 * special exception we allow some volume related flags to be set
544 * between _new() and _put() by the callback setter functions above.
546 * Thus we implement a couple safeguards here which ensure the above
547 * setters were used (or at least the implementor made manual changes
548 * in a compatible way).
550 * Note: All of these flags set here can change over the life time
552 pa_assert(!(s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
) || s
->set_volume
);
553 pa_assert(!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) || s
->write_volume
);
554 pa_assert(!(s
->flags
& PA_SOURCE_HW_MUTE_CTRL
) || s
->set_mute
);
556 /* XXX: Currently decibel volume is disabled for all sources that use volume
557 * sharing. When the master source supports decibel volume, it would be good
558 * to have the flag also in the filter source, but currently we don't do that
559 * so that the flags of the filter source never change when it's moved from
560 * a master source to another. One solution for this problem would be to
561 * remove user-visible volume altogether from filter sources when volume
562 * sharing is used, but the current approach was easier to implement... */
563 /* We always support decibel volumes in software, otherwise we leave it to
564 * the source implementor to set this flag as needed.
566 * Note: This flag can also change over the life time of the source. */
567 if (!(s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
) && !(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
568 pa_source_enable_decibel_volume(s
, true);
570 /* If the source implementor support DB volumes by itself, we should always
571 * try and enable flat volumes too */
572 if ((s
->flags
& PA_SOURCE_DECIBEL_VOLUME
))
573 enable_flat_volume(s
, true);
575 if (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) {
576 pa_source
*root_source
= pa_source_get_master(s
);
578 pa_assert(PA_LIKELY(root_source
));
580 s
->reference_volume
= root_source
->reference_volume
;
581 pa_cvolume_remap(&s
->reference_volume
, &root_source
->channel_map
, &s
->channel_map
);
583 s
->real_volume
= root_source
->real_volume
;
584 pa_cvolume_remap(&s
->real_volume
, &root_source
->channel_map
, &s
->channel_map
);
586 /* We assume that if the sink implementor changed the default
587 * volume he did so in real_volume, because that is the usual
588 * place where he is supposed to place his changes. */
589 s
->reference_volume
= s
->real_volume
;
591 s
->thread_info
.soft_volume
= s
->soft_volume
;
592 s
->thread_info
.soft_muted
= s
->muted
;
593 pa_sw_cvolume_multiply(&s
->thread_info
.current_hw_volume
, &s
->soft_volume
, &s
->real_volume
);
595 pa_assert((s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
)
596 || (s
->base_volume
== PA_VOLUME_NORM
597 && ((s
->flags
& PA_SOURCE_DECIBEL_VOLUME
|| (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)))));
598 pa_assert(!(s
->flags
& PA_SOURCE_DECIBEL_VOLUME
) || s
->n_volume_steps
== PA_VOLUME_NORM
+1);
599 pa_assert(!(s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) == (s
->thread_info
.fixed_latency
!= 0));
601 if (s
->suspend_cause
)
602 pa_assert_se(source_set_state(s
, PA_SOURCE_SUSPENDED
) == 0);
604 pa_assert_se(source_set_state(s
, PA_SOURCE_IDLE
) == 0);
606 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_NEW
, s
->index
);
607 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PUT
], s
);
610 /* Called from main context */
611 void pa_source_unlink(pa_source
*s
) {
613 pa_source_output
*o
, *j
= NULL
;
616 pa_assert_ctl_context();
618 /* See pa_sink_unlink() for a couple of comments how this function
621 linked
= PA_SOURCE_IS_LINKED(s
->state
);
624 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_UNLINK
], s
);
626 if (s
->state
!= PA_SOURCE_UNLINKED
)
627 pa_namereg_unregister(s
->core
, s
->name
);
628 pa_idxset_remove_by_data(s
->core
->sources
, s
, NULL
);
631 pa_idxset_remove_by_data(s
->card
->sources
, s
, NULL
);
633 while ((o
= pa_idxset_first(s
->outputs
, NULL
))) {
635 pa_source_output_kill(o
);
640 source_set_state(s
, PA_SOURCE_UNLINKED
);
642 s
->state
= PA_SOURCE_UNLINKED
;
647 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_REMOVE
, s
->index
);
648 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_UNLINK_POST
], s
);
652 /* Called from main context */
653 static void source_free(pa_object
*o
) {
654 pa_source
*s
= PA_SOURCE(o
);
657 pa_assert_ctl_context();
658 pa_assert(pa_source_refcnt(s
) == 0);
660 if (PA_SOURCE_IS_LINKED(s
->state
))
663 pa_log_info("Freeing source %u \"%s\"", s
->index
, s
->name
);
665 pa_idxset_free(s
->outputs
, NULL
);
666 pa_hashmap_free(s
->thread_info
.outputs
);
668 if (s
->silence
.memblock
)
669 pa_memblock_unref(s
->silence
.memblock
);
675 pa_proplist_free(s
->proplist
);
678 pa_hashmap_free(s
->ports
);
683 /* Called from main context, and not while the IO thread is active, please */
684 void pa_source_set_asyncmsgq(pa_source
*s
, pa_asyncmsgq
*q
) {
685 pa_source_assert_ref(s
);
686 pa_assert_ctl_context();
691 /* Called from main context, and not while the IO thread is active, please */
692 void pa_source_update_flags(pa_source
*s
, pa_source_flags_t mask
, pa_source_flags_t value
) {
693 pa_source_flags_t old_flags
;
694 pa_source_output
*output
;
697 pa_source_assert_ref(s
);
698 pa_assert_ctl_context();
700 /* For now, allow only a minimal set of flags to be changed. */
701 pa_assert((mask
& ~(PA_SOURCE_DYNAMIC_LATENCY
|PA_SOURCE_LATENCY
)) == 0);
703 old_flags
= s
->flags
;
704 s
->flags
= (s
->flags
& ~mask
) | (value
& mask
);
706 if (s
->flags
== old_flags
)
709 if ((s
->flags
& PA_SOURCE_LATENCY
) != (old_flags
& PA_SOURCE_LATENCY
))
710 pa_log_debug("Source %s: LATENCY flag %s.", s
->name
, (s
->flags
& PA_SOURCE_LATENCY
) ? "enabled" : "disabled");
712 if ((s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) != (old_flags
& PA_SOURCE_DYNAMIC_LATENCY
))
713 pa_log_debug("Source %s: DYNAMIC_LATENCY flag %s.",
714 s
->name
, (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) ? "enabled" : "disabled");
716 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
717 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_FLAGS_CHANGED
], s
);
719 PA_IDXSET_FOREACH(output
, s
->outputs
, idx
) {
720 if (output
->destination_source
)
721 pa_source_update_flags(output
->destination_source
, mask
, value
);
725 /* Called from IO context, or before _put() from main context */
726 void pa_source_set_rtpoll(pa_source
*s
, pa_rtpoll
*p
) {
727 pa_source_assert_ref(s
);
728 pa_source_assert_io_context(s
);
730 s
->thread_info
.rtpoll
= p
;
733 /* Called from main context */
734 int pa_source_update_status(pa_source
*s
) {
735 pa_source_assert_ref(s
);
736 pa_assert_ctl_context();
737 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
739 if (s
->state
== PA_SOURCE_SUSPENDED
)
742 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
745 /* Called from any context - must be threadsafe */
746 void pa_source_set_mixer_dirty(pa_source
*s
, bool is_dirty
) {
747 pa_atomic_store(&s
->mixer_dirty
, is_dirty
? 1 : 0);
750 /* Called from main context */
751 int pa_source_suspend(pa_source
*s
, bool suspend
, pa_suspend_cause_t cause
) {
752 pa_source_assert_ref(s
);
753 pa_assert_ctl_context();
754 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
755 pa_assert(cause
!= 0);
757 if (s
->monitor_of
&& cause
!= PA_SUSPEND_PASSTHROUGH
)
758 return -PA_ERR_NOTSUPPORTED
;
761 s
->suspend_cause
|= cause
;
763 s
->suspend_cause
&= ~cause
;
765 if (!(s
->suspend_cause
& PA_SUSPEND_SESSION
) && (pa_atomic_load(&s
->mixer_dirty
) != 0)) {
766 /* This might look racy but isn't: If somebody sets mixer_dirty exactly here,
767 it'll be handled just fine. */
768 pa_source_set_mixer_dirty(s
, false);
769 pa_log_debug("Mixer is now accessible. Updating alsa mixer settings.");
770 if (s
->active_port
&& s
->set_port
) {
771 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) {
772 struct source_message_set_port msg
= { .port
= s
->active_port
, .ret
= 0 };
773 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_PORT
, &msg
, 0, NULL
) == 0);
776 s
->set_port(s
, s
->active_port
);
786 if ((pa_source_get_state(s
) == PA_SOURCE_SUSPENDED
) == !!s
->suspend_cause
)
789 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s
->name
, s
->suspend_cause
, s
->suspend_cause
? "suspending" : "resuming");
791 if (s
->suspend_cause
)
792 return source_set_state(s
, PA_SOURCE_SUSPENDED
);
794 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
797 /* Called from main context */
798 int pa_source_sync_suspend(pa_source
*s
) {
799 pa_sink_state_t state
;
801 pa_source_assert_ref(s
);
802 pa_assert_ctl_context();
803 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
804 pa_assert(s
->monitor_of
);
806 state
= pa_sink_get_state(s
->monitor_of
);
808 if (state
== PA_SINK_SUSPENDED
)
809 return source_set_state(s
, PA_SOURCE_SUSPENDED
);
811 pa_assert(PA_SINK_IS_OPENED(state
));
813 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
816 /* Called from main context */
817 pa_queue
*pa_source_move_all_start(pa_source
*s
, pa_queue
*q
) {
818 pa_source_output
*o
, *n
;
821 pa_source_assert_ref(s
);
822 pa_assert_ctl_context();
823 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
828 for (o
= PA_SOURCE_OUTPUT(pa_idxset_first(s
->outputs
, &idx
)); o
; o
= n
) {
829 n
= PA_SOURCE_OUTPUT(pa_idxset_next(s
->outputs
, &idx
));
831 pa_source_output_ref(o
);
833 if (pa_source_output_start_move(o
) >= 0)
836 pa_source_output_unref(o
);
842 /* Called from main context */
843 void pa_source_move_all_finish(pa_source
*s
, pa_queue
*q
, bool save
) {
846 pa_source_assert_ref(s
);
847 pa_assert_ctl_context();
848 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
851 while ((o
= PA_SOURCE_OUTPUT(pa_queue_pop(q
)))) {
852 if (pa_source_output_finish_move(o
, s
, save
) < 0)
853 pa_source_output_fail_move(o
);
855 pa_source_output_unref(o
);
858 pa_queue_free(q
, NULL
);
861 /* Called from main context */
862 void pa_source_move_all_fail(pa_queue
*q
) {
865 pa_assert_ctl_context();
868 while ((o
= PA_SOURCE_OUTPUT(pa_queue_pop(q
)))) {
869 pa_source_output_fail_move(o
);
870 pa_source_output_unref(o
);
873 pa_queue_free(q
, NULL
);
876 /* Called from IO thread context */
877 void pa_source_process_rewind(pa_source
*s
, size_t nbytes
) {
881 pa_source_assert_ref(s
);
882 pa_source_assert_io_context(s
);
883 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
888 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
891 pa_log_debug("Processing rewind...");
893 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
894 pa_source_output_assert_ref(o
);
895 pa_source_output_process_rewind(o
, nbytes
);
899 /* Called from IO thread context */
900 void pa_source_post(pa_source
*s
, const pa_memchunk
*chunk
) {
904 pa_source_assert_ref(s
);
905 pa_source_assert_io_context(s
);
906 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
909 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
912 if (s
->thread_info
.soft_muted
|| !pa_cvolume_is_norm(&s
->thread_info
.soft_volume
)) {
913 pa_memchunk vchunk
= *chunk
;
915 pa_memblock_ref(vchunk
.memblock
);
916 pa_memchunk_make_writable(&vchunk
, 0);
918 if (s
->thread_info
.soft_muted
|| pa_cvolume_is_muted(&s
->thread_info
.soft_volume
))
919 pa_silence_memchunk(&vchunk
, &s
->sample_spec
);
921 pa_volume_memchunk(&vchunk
, &s
->sample_spec
, &s
->thread_info
.soft_volume
);
923 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
))) {
924 pa_source_output_assert_ref(o
);
926 if (!o
->thread_info
.direct_on_input
)
927 pa_source_output_push(o
, &vchunk
);
930 pa_memblock_unref(vchunk
.memblock
);
933 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
))) {
934 pa_source_output_assert_ref(o
);
936 if (!o
->thread_info
.direct_on_input
)
937 pa_source_output_push(o
, chunk
);
942 /* Called from IO thread context */
943 void pa_source_post_direct(pa_source
*s
, pa_source_output
*o
, const pa_memchunk
*chunk
) {
944 pa_source_assert_ref(s
);
945 pa_source_assert_io_context(s
);
946 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
947 pa_source_output_assert_ref(o
);
948 pa_assert(o
->thread_info
.direct_on_input
);
951 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
954 if (s
->thread_info
.soft_muted
|| !pa_cvolume_is_norm(&s
->thread_info
.soft_volume
)) {
955 pa_memchunk vchunk
= *chunk
;
957 pa_memblock_ref(vchunk
.memblock
);
958 pa_memchunk_make_writable(&vchunk
, 0);
960 if (s
->thread_info
.soft_muted
|| pa_cvolume_is_muted(&s
->thread_info
.soft_volume
))
961 pa_silence_memchunk(&vchunk
, &s
->sample_spec
);
963 pa_volume_memchunk(&vchunk
, &s
->sample_spec
, &s
->thread_info
.soft_volume
);
965 pa_source_output_push(o
, &vchunk
);
967 pa_memblock_unref(vchunk
.memblock
);
969 pa_source_output_push(o
, chunk
);
972 /* Called from main thread */
973 int pa_source_update_rate(pa_source
*s
, uint32_t rate
, bool passthrough
) {
975 uint32_t desired_rate
= rate
;
976 uint32_t default_rate
= s
->default_sample_rate
;
977 uint32_t alternate_rate
= s
->alternate_sample_rate
;
978 bool use_alternate
= false;
980 if (rate
== s
->sample_spec
.rate
)
983 if (!s
->update_rate
&& !s
->monitor_of
)
986 if (PA_UNLIKELY(default_rate
== alternate_rate
&& !passthrough
)) {
987 pa_log_debug("Default and alternate sample rates are the same.");
991 if (PA_SOURCE_IS_RUNNING(s
->state
)) {
992 pa_log_info("Cannot update rate, SOURCE_IS_RUNNING, will keep using %u Hz",
993 s
->sample_spec
.rate
);
998 if (PA_SINK_IS_RUNNING(s
->monitor_of
->state
)) {
999 pa_log_info("Cannot update rate, this is a monitor source and the sink is running.");
1004 if (PA_UNLIKELY(!pa_sample_rate_valid(desired_rate
)))
1008 pa_assert((default_rate
% 4000 == 0) || (default_rate
% 11025 == 0));
1009 pa_assert((alternate_rate
% 4000 == 0) || (alternate_rate
% 11025 == 0));
1011 if (default_rate
% 11025 == 0) {
1012 if ((alternate_rate
% 4000 == 0) && (desired_rate
% 4000 == 0))
1015 /* default is 4000 multiple */
1016 if ((alternate_rate
% 11025 == 0) && (desired_rate
% 11025 == 0))
1021 desired_rate
= alternate_rate
;
1023 desired_rate
= default_rate
;
1025 desired_rate
= rate
; /* use stream sampling rate, discard default/alternate settings */
1028 if (desired_rate
== s
->sample_spec
.rate
)
1031 if (!passthrough
&& pa_source_used_by(s
) > 0)
1034 pa_log_debug("Suspending source %s due to changing the sample rate.", s
->name
);
1035 pa_source_suspend(s
, true, PA_SUSPEND_INTERNAL
);
1038 ret
= s
->update_rate(s
, desired_rate
);
1040 /* This is a monitor source. */
1042 /* XXX: This code is written with non-passthrough streams in mind. I
1043 * have no idea whether the behaviour with passthrough streams is
1046 uint32_t old_rate
= s
->sample_spec
.rate
;
1048 s
->sample_spec
.rate
= desired_rate
;
1049 ret
= pa_sink_update_rate(s
->monitor_of
, desired_rate
, false);
1052 /* Changing the sink rate failed, roll back the old rate for
1053 * the monitor source. Why did we set the source rate before
1054 * calling pa_sink_update_rate(), you may ask. The reason is
1055 * that pa_sink_update_rate() tries to update the monitor
1056 * source rate, but we are already in the process of updating
1057 * the monitor source rate, so there's a risk of entering an
1058 * infinite loop. Setting the source rate before calling
1059 * pa_sink_update_rate() makes the rate == s->sample_spec.rate
1060 * check in the beginning of this function return early, so we
1062 s
->sample_spec
.rate
= old_rate
;
1070 pa_source_output
*o
;
1072 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1073 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
)
1074 pa_source_output_update_rate(o
);
1077 pa_log_info("Changed sampling rate successfully");
1080 pa_source_suspend(s
, false, PA_SUSPEND_INTERNAL
);
1085 /* Called from main thread */
1086 pa_usec_t
pa_source_get_latency(pa_source
*s
) {
1089 pa_source_assert_ref(s
);
1090 pa_assert_ctl_context();
1091 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1093 if (s
->state
== PA_SOURCE_SUSPENDED
)
1096 if (!(s
->flags
& PA_SOURCE_LATENCY
))
1099 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY
, &usec
, 0, NULL
) == 0);
1101 /* usec is unsigned, so check that the offset can be added to usec without
1103 if (-s
->latency_offset
<= (int64_t) usec
)
1104 usec
+= s
->latency_offset
;
1111 /* Called from IO thread */
1112 pa_usec_t
pa_source_get_latency_within_thread(pa_source
*s
) {
1116 pa_source_assert_ref(s
);
1117 pa_source_assert_io_context(s
);
1118 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
1120 /* The returned value is supposed to be in the time domain of the sound card! */
1122 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
1125 if (!(s
->flags
& PA_SOURCE_LATENCY
))
1128 o
= PA_MSGOBJECT(s
);
1130 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
1132 if (o
->process_msg(o
, PA_SOURCE_MESSAGE_GET_LATENCY
, &usec
, 0, NULL
) < 0)
1135 /* usec is unsigned, so check that the offset can be added to usec without
1137 if (-s
->thread_info
.latency_offset
<= (int64_t) usec
)
1138 usec
+= s
->thread_info
.latency_offset
;
1145 /* Called from the main thread (and also from the IO thread while the main
1146 * thread is waiting).
1148 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
1149 * set. Instead, flat volume mode is detected by checking whether the root source
1150 * has the flag set. */
1151 bool pa_source_flat_volume_enabled(pa_source
*s
) {
1152 pa_source_assert_ref(s
);
1154 s
= pa_source_get_master(s
);
1157 return (s
->flags
& PA_SOURCE_FLAT_VOLUME
);
1162 /* Called from the main thread (and also from the IO thread while the main
1163 * thread is waiting). */
1164 pa_source
*pa_source_get_master(pa_source
*s
) {
1165 pa_source_assert_ref(s
);
1167 while (s
&& (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1168 if (PA_UNLIKELY(!s
->output_from_master
))
1171 s
= s
->output_from_master
->source
;
1177 /* Called from main context */
1178 bool pa_source_is_passthrough(pa_source
*s
) {
1180 pa_source_assert_ref(s
);
1182 /* NB Currently only monitor sources support passthrough mode */
1183 return (s
->monitor_of
&& pa_sink_is_passthrough(s
->monitor_of
));
1186 /* Called from main context */
1187 void pa_source_enter_passthrough(pa_source
*s
) {
1190 /* set the volume to NORM */
1191 s
->saved_volume
= *pa_source_get_volume(s
, true);
1192 s
->saved_save_volume
= s
->save_volume
;
1194 pa_cvolume_set(&volume
, s
->sample_spec
.channels
, PA_MIN(s
->base_volume
, PA_VOLUME_NORM
));
1195 pa_source_set_volume(s
, &volume
, true, false);
1198 /* Called from main context */
1199 void pa_source_leave_passthrough(pa_source
*s
) {
1200 /* Restore source volume to what it was before we entered passthrough mode */
1201 pa_source_set_volume(s
, &s
->saved_volume
, true, s
->saved_save_volume
);
1203 pa_cvolume_init(&s
->saved_volume
);
1204 s
->saved_save_volume
= false;
1207 /* Called from main context. */
1208 static void compute_reference_ratio(pa_source_output
*o
) {
1210 pa_cvolume remapped
;
1213 pa_assert(pa_source_flat_volume_enabled(o
->source
));
1216 * Calculates the reference ratio from the source's reference
1217 * volume. This basically calculates:
1219 * o->reference_ratio = o->volume / o->source->reference_volume
1222 remapped
= o
->source
->reference_volume
;
1223 pa_cvolume_remap(&remapped
, &o
->source
->channel_map
, &o
->channel_map
);
1225 o
->reference_ratio
.channels
= o
->sample_spec
.channels
;
1227 for (c
= 0; c
< o
->sample_spec
.channels
; c
++) {
1229 /* We don't update when the source volume is 0 anyway */
1230 if (remapped
.values
[c
] <= PA_VOLUME_MUTED
)
1233 /* Don't update the reference ratio unless necessary */
1234 if (pa_sw_volume_multiply(
1235 o
->reference_ratio
.values
[c
],
1236 remapped
.values
[c
]) == o
->volume
.values
[c
])
1239 o
->reference_ratio
.values
[c
] = pa_sw_volume_divide(
1240 o
->volume
.values
[c
],
1241 remapped
.values
[c
]);
1245 /* Called from main context. Only called for the root source in volume sharing
1246 * cases, except for internal recursive calls. */
1247 static void compute_reference_ratios(pa_source
*s
) {
1249 pa_source_output
*o
;
1251 pa_source_assert_ref(s
);
1252 pa_assert_ctl_context();
1253 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1254 pa_assert(pa_source_flat_volume_enabled(s
));
1256 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1257 compute_reference_ratio(o
);
1259 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1260 compute_reference_ratios(o
->destination_source
);
1264 /* Called from main context. Only called for the root source in volume sharing
1265 * cases, except for internal recursive calls. */
1266 static void compute_real_ratios(pa_source
*s
) {
1267 pa_source_output
*o
;
1270 pa_source_assert_ref(s
);
1271 pa_assert_ctl_context();
1272 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1273 pa_assert(pa_source_flat_volume_enabled(s
));
1275 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1277 pa_cvolume remapped
;
1279 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1280 /* The origin source uses volume sharing, so this input's real ratio
1281 * is handled as a special case - the real ratio must be 0 dB, and
1282 * as a result i->soft_volume must equal i->volume_factor. */
1283 pa_cvolume_reset(&o
->real_ratio
, o
->real_ratio
.channels
);
1284 o
->soft_volume
= o
->volume_factor
;
1286 compute_real_ratios(o
->destination_source
);
1292 * This basically calculates:
1294 * i->real_ratio := i->volume / s->real_volume
1295 * i->soft_volume := i->real_ratio * i->volume_factor
1298 remapped
= s
->real_volume
;
1299 pa_cvolume_remap(&remapped
, &s
->channel_map
, &o
->channel_map
);
1301 o
->real_ratio
.channels
= o
->sample_spec
.channels
;
1302 o
->soft_volume
.channels
= o
->sample_spec
.channels
;
1304 for (c
= 0; c
< o
->sample_spec
.channels
; c
++) {
1306 if (remapped
.values
[c
] <= PA_VOLUME_MUTED
) {
1307 /* We leave o->real_ratio untouched */
1308 o
->soft_volume
.values
[c
] = PA_VOLUME_MUTED
;
1312 /* Don't lose accuracy unless necessary */
1313 if (pa_sw_volume_multiply(
1314 o
->real_ratio
.values
[c
],
1315 remapped
.values
[c
]) != o
->volume
.values
[c
])
1317 o
->real_ratio
.values
[c
] = pa_sw_volume_divide(
1318 o
->volume
.values
[c
],
1319 remapped
.values
[c
]);
1321 o
->soft_volume
.values
[c
] = pa_sw_volume_multiply(
1322 o
->real_ratio
.values
[c
],
1323 o
->volume_factor
.values
[c
]);
1326 /* We don't copy the soft_volume to the thread_info data
1327 * here. That must be done by the caller */
1331 static pa_cvolume
*cvolume_remap_minimal_impact(
1333 const pa_cvolume
*template,
1334 const pa_channel_map
*from
,
1335 const pa_channel_map
*to
) {
1340 pa_assert(template);
1343 pa_assert(pa_cvolume_compatible_with_channel_map(v
, from
));
1344 pa_assert(pa_cvolume_compatible_with_channel_map(template, to
));
1346 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1347 * mapping from source output to source volumes:
1349 * If template is a possible remapping from v it is used instead
1350 * of remapping anew.
1352 * If the channel maps don't match we set an all-channel volume on
1353 * the source to ensure that changing a volume on one stream has no
1354 * effect that cannot be compensated for in another stream that
1355 * does not have the same channel map as the source. */
1357 if (pa_channel_map_equal(from
, to
))
1361 if (pa_cvolume_equal(pa_cvolume_remap(&t
, to
, from
), v
)) {
1366 pa_cvolume_set(v
, to
->channels
, pa_cvolume_max(v
));
1370 /* Called from main thread. Only called for the root source in volume sharing
1371 * cases, except for internal recursive calls. */
1372 static void get_maximum_output_volume(pa_source
*s
, pa_cvolume
*max_volume
, const pa_channel_map
*channel_map
) {
1373 pa_source_output
*o
;
1376 pa_source_assert_ref(s
);
1377 pa_assert(max_volume
);
1378 pa_assert(channel_map
);
1379 pa_assert(pa_source_flat_volume_enabled(s
));
1381 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1382 pa_cvolume remapped
;
1384 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1385 get_maximum_output_volume(o
->destination_source
, max_volume
, channel_map
);
1387 /* Ignore this output. The origin source uses volume sharing, so this
1388 * output's volume will be set to be equal to the root source's real
1389 * volume. Obviously this output's current volume must not then
1390 * affect what the root source's real volume will be. */
1394 remapped
= o
->volume
;
1395 cvolume_remap_minimal_impact(&remapped
, max_volume
, &o
->channel_map
, channel_map
);
1396 pa_cvolume_merge(max_volume
, max_volume
, &remapped
);
1400 /* Called from main thread. Only called for the root source in volume sharing
1401 * cases, except for internal recursive calls. */
1402 static bool has_outputs(pa_source
*s
) {
1403 pa_source_output
*o
;
1406 pa_source_assert_ref(s
);
1408 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1409 if (!o
->destination_source
|| !(o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) || has_outputs(o
->destination_source
))
1416 /* Called from main thread. Only called for the root source in volume sharing
1417 * cases, except for internal recursive calls. */
1418 static void update_real_volume(pa_source
*s
, const pa_cvolume
*new_volume
, pa_channel_map
*channel_map
) {
1419 pa_source_output
*o
;
1422 pa_source_assert_ref(s
);
1423 pa_assert(new_volume
);
1424 pa_assert(channel_map
);
1426 s
->real_volume
= *new_volume
;
1427 pa_cvolume_remap(&s
->real_volume
, channel_map
, &s
->channel_map
);
1429 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1430 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1431 if (pa_source_flat_volume_enabled(s
)) {
1432 pa_cvolume old_volume
= o
->volume
;
1434 /* Follow the root source's real volume. */
1435 o
->volume
= *new_volume
;
1436 pa_cvolume_remap(&o
->volume
, channel_map
, &o
->channel_map
);
1437 compute_reference_ratio(o
);
1439 /* The volume changed, let's tell people so */
1440 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1441 if (o
->volume_changed
)
1442 o
->volume_changed(o
);
1444 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1448 update_real_volume(o
->destination_source
, new_volume
, channel_map
);
1453 /* Called from main thread. Only called for the root source in shared volume
1455 static void compute_real_volume(pa_source
*s
) {
1456 pa_source_assert_ref(s
);
1457 pa_assert_ctl_context();
1458 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1459 pa_assert(pa_source_flat_volume_enabled(s
));
1460 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1462 /* This determines the maximum volume of all streams and sets
1463 * s->real_volume accordingly. */
1465 if (!has_outputs(s
)) {
1466 /* In the special case that we have no source outputs we leave the
1467 * volume unmodified. */
1468 update_real_volume(s
, &s
->reference_volume
, &s
->channel_map
);
1472 pa_cvolume_mute(&s
->real_volume
, s
->channel_map
.channels
);
1474 /* First let's determine the new maximum volume of all outputs
1475 * connected to this source */
1476 get_maximum_output_volume(s
, &s
->real_volume
, &s
->channel_map
);
1477 update_real_volume(s
, &s
->real_volume
, &s
->channel_map
);
1479 /* Then, let's update the real ratios/soft volumes of all outputs
1480 * connected to this source */
1481 compute_real_ratios(s
);
1484 /* Called from main thread. Only called for the root source in shared volume
1485 * cases, except for internal recursive calls. */
1486 static void propagate_reference_volume(pa_source
*s
) {
1487 pa_source_output
*o
;
1490 pa_source_assert_ref(s
);
1491 pa_assert_ctl_context();
1492 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1493 pa_assert(pa_source_flat_volume_enabled(s
));
1495 /* This is called whenever the source volume changes that is not
1496 * caused by a source output volume change. We need to fix up the
1497 * source output volumes accordingly */
1499 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1500 pa_cvolume old_volume
;
1502 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1503 propagate_reference_volume(o
->destination_source
);
1505 /* Since the origin source uses volume sharing, this output's volume
1506 * needs to be updated to match the root source's real volume, but
1507 * that will be done later in update_shared_real_volume(). */
1511 old_volume
= o
->volume
;
1513 /* This basically calculates:
1515 * o->volume := o->reference_volume * o->reference_ratio */
1517 o
->volume
= s
->reference_volume
;
1518 pa_cvolume_remap(&o
->volume
, &s
->channel_map
, &o
->channel_map
);
1519 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1521 /* The volume changed, let's tell people so */
1522 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1524 if (o
->volume_changed
)
1525 o
->volume_changed(o
);
1527 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1532 /* Called from main thread. Only called for the root source in volume sharing
1533 * cases, except for internal recursive calls. The return value indicates
1534 * whether any reference volume actually changed. */
1535 static bool update_reference_volume(pa_source
*s
, const pa_cvolume
*v
, const pa_channel_map
*channel_map
, bool save
) {
1537 bool reference_volume_changed
;
1538 pa_source_output
*o
;
1541 pa_source_assert_ref(s
);
1542 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1544 pa_assert(channel_map
);
1545 pa_assert(pa_cvolume_valid(v
));
1548 pa_cvolume_remap(&volume
, channel_map
, &s
->channel_map
);
1550 reference_volume_changed
= !pa_cvolume_equal(&volume
, &s
->reference_volume
);
1551 pa_source_set_reference_volume_direct(s
, &volume
);
1553 s
->save_volume
= (!reference_volume_changed
&& s
->save_volume
) || save
;
1555 if (!reference_volume_changed
&& !(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1556 /* If the root source's volume doesn't change, then there can't be any
1557 * changes in the other source in the source tree either.
1559 * It's probably theoretically possible that even if the root source's
1560 * volume changes slightly, some filter source doesn't change its volume
1561 * due to rounding errors. If that happens, we still want to propagate
1562 * the changed root source volume to the sources connected to the
1563 * intermediate source that didn't change its volume. This theoretical
1564 * possibility is the reason why we have that !(s->flags &
1565 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1566 * notice even if we returned here false always if
1567 * reference_volume_changed is false. */
1570 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1571 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1572 update_reference_volume(o
->destination_source
, v
, channel_map
, false);
1578 /* Called from main thread */
1579 void pa_source_set_volume(
1581 const pa_cvolume
*volume
,
1585 pa_cvolume new_reference_volume
;
1586 pa_source
*root_source
;
1588 pa_source_assert_ref(s
);
1589 pa_assert_ctl_context();
1590 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1591 pa_assert(!volume
|| pa_cvolume_valid(volume
));
1592 pa_assert(volume
|| pa_source_flat_volume_enabled(s
));
1593 pa_assert(!volume
|| volume
->channels
== 1 || pa_cvolume_compatible(volume
, &s
->sample_spec
));
1595 /* make sure we don't change the volume in PASSTHROUGH mode ...
1596 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1597 if (pa_source_is_passthrough(s
) && (!volume
|| !pa_cvolume_is_norm(volume
))) {
1598 pa_log_warn("Cannot change volume, source is monitor of a PASSTHROUGH sink");
1602 /* In case of volume sharing, the volume is set for the root source first,
1603 * from which it's then propagated to the sharing sources. */
1604 root_source
= pa_source_get_master(s
);
1606 if (PA_UNLIKELY(!root_source
))
1609 /* As a special exception we accept mono volumes on all sources --
1610 * even on those with more complex channel maps */
1613 if (pa_cvolume_compatible(volume
, &s
->sample_spec
))
1614 new_reference_volume
= *volume
;
1616 new_reference_volume
= s
->reference_volume
;
1617 pa_cvolume_scale(&new_reference_volume
, pa_cvolume_max(volume
));
1620 pa_cvolume_remap(&new_reference_volume
, &s
->channel_map
, &root_source
->channel_map
);
1622 if (update_reference_volume(root_source
, &new_reference_volume
, &root_source
->channel_map
, save
)) {
1623 if (pa_source_flat_volume_enabled(root_source
)) {
1624 /* OK, propagate this volume change back to the outputs */
1625 propagate_reference_volume(root_source
);
1627 /* And now recalculate the real volume */
1628 compute_real_volume(root_source
);
1630 update_real_volume(root_source
, &root_source
->reference_volume
, &root_source
->channel_map
);
1634 /* If volume is NULL we synchronize the source's real and
1635 * reference volumes with the stream volumes. */
1637 pa_assert(pa_source_flat_volume_enabled(root_source
));
1639 /* Ok, let's determine the new real volume */
1640 compute_real_volume(root_source
);
1642 /* Let's 'push' the reference volume if necessary */
1643 pa_cvolume_merge(&new_reference_volume
, &s
->reference_volume
, &root_source
->real_volume
);
1644 /* If the source and its root don't have the same number of channels, we need to remap */
1645 if (s
!= root_source
&& !pa_channel_map_equal(&s
->channel_map
, &root_source
->channel_map
))
1646 pa_cvolume_remap(&new_reference_volume
, &s
->channel_map
, &root_source
->channel_map
);
1647 update_reference_volume(root_source
, &new_reference_volume
, &root_source
->channel_map
, save
);
1649 /* Now that the reference volume is updated, we can update the streams'
1650 * reference ratios. */
1651 compute_reference_ratios(root_source
);
1654 if (root_source
->set_volume
) {
1655 /* If we have a function set_volume(), then we do not apply a
1656 * soft volume by default. However, set_volume() is free to
1657 * apply one to root_source->soft_volume */
1659 pa_cvolume_reset(&root_source
->soft_volume
, root_source
->sample_spec
.channels
);
1660 if (!(root_source
->flags
& PA_SOURCE_DEFERRED_VOLUME
))
1661 root_source
->set_volume(root_source
);
1664 /* If we have no function set_volume(), then the soft volume
1665 * becomes the real volume */
1666 root_source
->soft_volume
= root_source
->real_volume
;
1668 /* This tells the source that soft volume and/or real volume changed */
1670 pa_assert_se(pa_asyncmsgq_send(root_source
->asyncmsgq
, PA_MSGOBJECT(root_source
), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
) == 0);
1673 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1674 * Only to be called by source implementor */
1675 void pa_source_set_soft_volume(pa_source
*s
, const pa_cvolume
*volume
) {
1677 pa_source_assert_ref(s
);
1678 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1680 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
)
1681 pa_source_assert_io_context(s
);
1683 pa_assert_ctl_context();
1686 pa_cvolume_reset(&s
->soft_volume
, s
->sample_spec
.channels
);
1688 s
->soft_volume
= *volume
;
1690 if (PA_SOURCE_IS_LINKED(s
->state
) && !(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
))
1691 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_VOLUME
, NULL
, 0, NULL
) == 0);
1693 s
->thread_info
.soft_volume
= s
->soft_volume
;
1696 /* Called from the main thread. Only called for the root source in volume sharing
1697 * cases, except for internal recursive calls. */
1698 static void propagate_real_volume(pa_source
*s
, const pa_cvolume
*old_real_volume
) {
1699 pa_source_output
*o
;
1702 pa_source_assert_ref(s
);
1703 pa_assert(old_real_volume
);
1704 pa_assert_ctl_context();
1705 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1707 /* This is called when the hardware's real volume changes due to
1708 * some external event. We copy the real volume into our
1709 * reference volume and then rebuild the stream volumes based on
1710 * i->real_ratio which should stay fixed. */
1712 if (!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1713 if (pa_cvolume_equal(old_real_volume
, &s
->real_volume
))
1716 /* 1. Make the real volume the reference volume */
1717 update_reference_volume(s
, &s
->real_volume
, &s
->channel_map
, true);
1720 if (pa_source_flat_volume_enabled(s
)) {
1722 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1723 pa_cvolume old_volume
= o
->volume
;
1725 /* 2. Since the source's reference and real volumes are equal
1726 * now our ratios should be too. */
1727 o
->reference_ratio
= o
->real_ratio
;
1729 /* 3. Recalculate the new stream reference volume based on the
1730 * reference ratio and the sink's reference volume.
1732 * This basically calculates:
1734 * o->volume = s->reference_volume * o->reference_ratio
1736 * This is identical to propagate_reference_volume() */
1737 o
->volume
= s
->reference_volume
;
1738 pa_cvolume_remap(&o
->volume
, &s
->channel_map
, &o
->channel_map
);
1739 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1741 /* Notify if something changed */
1742 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1744 if (o
->volume_changed
)
1745 o
->volume_changed(o
);
1747 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1750 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1751 propagate_real_volume(o
->destination_source
, old_real_volume
);
1755 /* Something got changed in the hardware. It probably makes sense
1756 * to save changed hw settings given that hw volume changes not
1757 * triggered by PA are almost certainly done by the user. */
1758 if (!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1759 s
->save_volume
= true;
1762 /* Called from io thread */
1763 void pa_source_update_volume_and_mute(pa_source
*s
) {
1765 pa_source_assert_io_context(s
);
1767 pa_asyncmsgq_post(pa_thread_mq_get()->outq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE
, NULL
, 0, NULL
, NULL
);
1770 /* Called from main thread */
1771 const pa_cvolume
*pa_source_get_volume(pa_source
*s
, bool force_refresh
) {
1772 pa_source_assert_ref(s
);
1773 pa_assert_ctl_context();
1774 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1776 if (s
->refresh_volume
|| force_refresh
) {
1777 struct pa_cvolume old_real_volume
;
1779 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1781 old_real_volume
= s
->real_volume
;
1783 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_volume
)
1786 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_VOLUME
, NULL
, 0, NULL
) == 0);
1788 update_real_volume(s
, &s
->real_volume
, &s
->channel_map
);
1789 propagate_real_volume(s
, &old_real_volume
);
1792 return &s
->reference_volume
;
1795 /* Called from main thread. In volume sharing cases, only the root source may
1797 void pa_source_volume_changed(pa_source
*s
, const pa_cvolume
*new_real_volume
) {
1798 pa_cvolume old_real_volume
;
1800 pa_source_assert_ref(s
);
1801 pa_assert_ctl_context();
1802 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1803 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1805 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1807 old_real_volume
= s
->real_volume
;
1808 update_real_volume(s
, new_real_volume
, &s
->channel_map
);
1809 propagate_real_volume(s
, &old_real_volume
);
1812 /* Called from main thread */
1813 void pa_source_set_mute(pa_source
*s
, bool mute
, bool save
) {
1816 pa_source_assert_ref(s
);
1817 pa_assert_ctl_context();
1818 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1820 old_muted
= s
->muted
;
1822 s
->save_muted
= (old_muted
== s
->muted
&& s
->save_muted
) || save
;
1824 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->set_mute
)
1827 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MUTE
, NULL
, 0, NULL
) == 0);
1829 if (old_muted
!= s
->muted
)
1830 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1833 /* Called from main thread */
1834 bool pa_source_get_mute(pa_source
*s
, bool force_refresh
) {
1836 pa_source_assert_ref(s
);
1837 pa_assert_ctl_context();
1838 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1840 if (s
->refresh_muted
|| force_refresh
) {
1841 bool old_muted
= s
->muted
;
1843 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_mute
)
1846 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MUTE
, NULL
, 0, NULL
) == 0);
1848 if (old_muted
!= s
->muted
) {
1849 s
->save_muted
= true;
1851 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1853 /* Make sure the soft mute status stays in sync */
1854 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MUTE
, NULL
, 0, NULL
) == 0);
1861 /* Called from main thread */
1862 void pa_source_mute_changed(pa_source
*s
, bool new_muted
) {
1863 pa_source_assert_ref(s
);
1864 pa_assert_ctl_context();
1865 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1867 /* The source implementor may call this if the mute state changed to make sure everyone is notified */
1869 if (s
->muted
== new_muted
)
1872 s
->muted
= new_muted
;
1873 s
->save_muted
= true;
1875 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1878 /* Called from main thread */
1879 bool pa_source_update_proplist(pa_source
*s
, pa_update_mode_t mode
, pa_proplist
*p
) {
1880 pa_source_assert_ref(s
);
1881 pa_assert_ctl_context();
1884 pa_proplist_update(s
->proplist
, mode
, p
);
1886 if (PA_SOURCE_IS_LINKED(s
->state
)) {
1887 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED
], s
);
1888 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1894 /* Called from main thread */
1895 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1896 void pa_source_set_description(pa_source
*s
, const char *description
) {
1898 pa_source_assert_ref(s
);
1899 pa_assert_ctl_context();
1901 if (!description
&& !pa_proplist_contains(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
))
1904 old
= pa_proplist_gets(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
1906 if (old
&& description
&& pa_streq(old
, description
))
1910 pa_proplist_sets(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
, description
);
1912 pa_proplist_unset(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
1914 if (PA_SOURCE_IS_LINKED(s
->state
)) {
1915 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1916 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED
], s
);
1920 /* Called from main thread */
1921 unsigned pa_source_linked_by(pa_source
*s
) {
1922 pa_source_assert_ref(s
);
1923 pa_assert_ctl_context();
1924 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1926 return pa_idxset_size(s
->outputs
);
1929 /* Called from main thread */
1930 unsigned pa_source_used_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 ret
= pa_idxset_size(s
->outputs
);
1938 pa_assert(ret
>= s
->n_corked
);
1940 return ret
- s
->n_corked
;
1943 /* Called from main thread */
1944 unsigned pa_source_check_suspend(pa_source
*s
) {
1946 pa_source_output
*o
;
1949 pa_source_assert_ref(s
);
1950 pa_assert_ctl_context();
1952 if (!PA_SOURCE_IS_LINKED(s
->state
))
1957 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1958 pa_source_output_state_t st
;
1960 st
= pa_source_output_get_state(o
);
1962 /* We do not assert here. It is perfectly valid for a source output to
1963 * be in the INIT state (i.e. created, marked done but not yet put)
1964 * and we should not care if it's unlinked as it won't contribute
1965 * towards our busy status.
1967 if (!PA_SOURCE_OUTPUT_IS_LINKED(st
))
1970 if (st
== PA_SOURCE_OUTPUT_CORKED
)
1973 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND
)
1982 /* Called from the IO thread */
1983 static void sync_output_volumes_within_thread(pa_source
*s
) {
1984 pa_source_output
*o
;
1987 pa_source_assert_ref(s
);
1988 pa_source_assert_io_context(s
);
1990 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
1991 if (pa_cvolume_equal(&o
->thread_info
.soft_volume
, &o
->soft_volume
))
1994 o
->thread_info
.soft_volume
= o
->soft_volume
;
1995 //pa_source_output_request_rewind(o, 0, true, false, false);
1999 /* Called from the IO thread. Only called for the root source in volume sharing
2000 * cases, except for internal recursive calls. */
2001 static void set_shared_volume_within_thread(pa_source
*s
) {
2002 pa_source_output
*o
;
2005 pa_source_assert_ref(s
);
2007 PA_MSGOBJECT(s
)->process_msg(PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED
, NULL
, 0, NULL
);
2009 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
2010 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
2011 set_shared_volume_within_thread(o
->destination_source
);
2015 /* Called from IO thread, except when it is not */
2016 int pa_source_process_msg(pa_msgobject
*object
, int code
, void *userdata
, int64_t offset
, pa_memchunk
*chunk
) {
2017 pa_source
*s
= PA_SOURCE(object
);
2018 pa_source_assert_ref(s
);
2020 switch ((pa_source_message_t
) code
) {
2022 case PA_SOURCE_MESSAGE_ADD_OUTPUT
: {
2023 pa_source_output
*o
= PA_SOURCE_OUTPUT(userdata
);
2025 pa_hashmap_put(s
->thread_info
.outputs
, PA_UINT32_TO_PTR(o
->index
), pa_source_output_ref(o
));
2027 if (o
->direct_on_input
) {
2028 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
2029 pa_hashmap_put(o
->thread_info
.direct_on_input
->thread_info
.direct_outputs
, PA_UINT32_TO_PTR(o
->index
), o
);
2032 pa_assert(!o
->thread_info
.attached
);
2033 o
->thread_info
.attached
= true;
2038 pa_source_output_set_state_within_thread(o
, o
->state
);
2040 if (o
->thread_info
.requested_source_latency
!= (pa_usec_t
) -1)
2041 pa_source_output_set_requested_latency_within_thread(o
, o
->thread_info
.requested_source_latency
);
2043 pa_source_output_update_max_rewind(o
, s
->thread_info
.max_rewind
);
2045 /* We don't just invalidate the requested latency here,
2046 * because if we are in a move we might need to fix up the
2047 * requested latency. */
2048 pa_source_output_set_requested_latency_within_thread(o
, o
->thread_info
.requested_source_latency
);
2050 /* In flat volume mode we need to update the volume as
2052 return object
->process_msg(object
, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
);
2055 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT
: {
2056 pa_source_output
*o
= PA_SOURCE_OUTPUT(userdata
);
2058 pa_source_output_set_state_within_thread(o
, o
->state
);
2063 pa_assert(o
->thread_info
.attached
);
2064 o
->thread_info
.attached
= false;
2066 if (o
->thread_info
.direct_on_input
) {
2067 pa_hashmap_remove(o
->thread_info
.direct_on_input
->thread_info
.direct_outputs
, PA_UINT32_TO_PTR(o
->index
));
2068 o
->thread_info
.direct_on_input
= NULL
;
2071 pa_hashmap_remove_and_free(s
->thread_info
.outputs
, PA_UINT32_TO_PTR(o
->index
));
2072 pa_source_invalidate_requested_latency(s
, true);
2074 /* In flat volume mode we need to update the volume as
2076 return object
->process_msg(object
, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
);
2079 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
: {
2080 pa_source
*root_source
= pa_source_get_master(s
);
2082 if (PA_LIKELY(root_source
))
2083 set_shared_volume_within_thread(root_source
);
2088 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED
:
2090 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) {
2092 pa_source_volume_change_push(s
);
2094 /* Fall through ... */
2096 case PA_SOURCE_MESSAGE_SET_VOLUME
:
2098 if (!pa_cvolume_equal(&s
->thread_info
.soft_volume
, &s
->soft_volume
)) {
2099 s
->thread_info
.soft_volume
= s
->soft_volume
;
2102 /* Fall through ... */
2104 case PA_SOURCE_MESSAGE_SYNC_VOLUMES
:
2105 sync_output_volumes_within_thread(s
);
2108 case PA_SOURCE_MESSAGE_GET_VOLUME
:
2110 if ((s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_volume
) {
2112 pa_source_volume_change_flush(s
);
2113 pa_sw_cvolume_divide(&s
->thread_info
.current_hw_volume
, &s
->real_volume
, &s
->soft_volume
);
2116 /* In case source implementor reset SW volume. */
2117 if (!pa_cvolume_equal(&s
->thread_info
.soft_volume
, &s
->soft_volume
)) {
2118 s
->thread_info
.soft_volume
= s
->soft_volume
;
2123 case PA_SOURCE_MESSAGE_SET_MUTE
:
2125 if (s
->thread_info
.soft_muted
!= s
->muted
) {
2126 s
->thread_info
.soft_muted
= s
->muted
;
2129 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
&& s
->set_mute
)
2134 case PA_SOURCE_MESSAGE_GET_MUTE
:
2136 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
&& s
->get_mute
)
2141 case PA_SOURCE_MESSAGE_SET_STATE
: {
2143 bool suspend_change
=
2144 (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
&& PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata
))) ||
2145 (PA_SOURCE_IS_OPENED(s
->thread_info
.state
) && PA_PTR_TO_UINT(userdata
) == PA_SOURCE_SUSPENDED
);
2147 s
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
2149 if (suspend_change
) {
2150 pa_source_output
*o
;
2153 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
2154 if (o
->suspend_within_thread
)
2155 o
->suspend_within_thread(o
, s
->thread_info
.state
== PA_SOURCE_SUSPENDED
);
2161 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY
: {
2163 pa_usec_t
*usec
= userdata
;
2164 *usec
= pa_source_get_requested_latency_within_thread(s
);
2166 /* Yes, that's right, the IO thread will see -1 when no
2167 * explicit requested latency is configured, the main
2168 * thread will see max_latency */
2169 if (*usec
== (pa_usec_t
) -1)
2170 *usec
= s
->thread_info
.max_latency
;
2175 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
: {
2176 pa_usec_t
*r
= userdata
;
2178 pa_source_set_latency_range_within_thread(s
, r
[0], r
[1]);
2183 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
: {
2184 pa_usec_t
*r
= userdata
;
2186 r
[0] = s
->thread_info
.min_latency
;
2187 r
[1] = s
->thread_info
.max_latency
;
2192 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY
:
2194 *((pa_usec_t
*) userdata
) = s
->thread_info
.fixed_latency
;
2197 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY
:
2199 pa_source_set_fixed_latency_within_thread(s
, (pa_usec_t
) offset
);
2202 case PA_SOURCE_MESSAGE_GET_MAX_REWIND
:
2204 *((size_t*) userdata
) = s
->thread_info
.max_rewind
;
2207 case PA_SOURCE_MESSAGE_SET_MAX_REWIND
:
2209 pa_source_set_max_rewind_within_thread(s
, (size_t) offset
);
2212 case PA_SOURCE_MESSAGE_GET_LATENCY
:
2214 if (s
->monitor_of
) {
2215 *((pa_usec_t
*) userdata
) = 0;
2219 /* Implementors need to overwrite this implementation! */
2222 case PA_SOURCE_MESSAGE_SET_PORT
:
2224 pa_assert(userdata
);
2226 struct source_message_set_port
*msg_data
= userdata
;
2227 msg_data
->ret
= s
->set_port(s
, msg_data
->port
);
2231 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE
:
2232 /* This message is sent from IO-thread and handled in main thread. */
2233 pa_assert_ctl_context();
2235 /* Make sure we're not messing with main thread when no longer linked */
2236 if (!PA_SOURCE_IS_LINKED(s
->state
))
2239 pa_source_get_volume(s
, true);
2240 pa_source_get_mute(s
, true);
2243 case PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET
:
2244 s
->thread_info
.latency_offset
= offset
;
2247 case PA_SOURCE_MESSAGE_MAX
:
2254 /* Called from main thread */
2255 int pa_source_suspend_all(pa_core
*c
, bool suspend
, pa_suspend_cause_t cause
) {
2260 pa_core_assert_ref(c
);
2261 pa_assert_ctl_context();
2262 pa_assert(cause
!= 0);
2264 for (source
= PA_SOURCE(pa_idxset_first(c
->sources
, &idx
)); source
; source
= PA_SOURCE(pa_idxset_next(c
->sources
, &idx
))) {
2267 if (source
->monitor_of
)
2270 if ((r
= pa_source_suspend(source
, suspend
, cause
)) < 0)
2277 /* Called from IO thread */
2278 void pa_source_detach_within_thread(pa_source
*s
) {
2279 pa_source_output
*o
;
2282 pa_source_assert_ref(s
);
2283 pa_source_assert_io_context(s
);
2284 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
2286 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2291 /* Called from IO thread */
2292 void pa_source_attach_within_thread(pa_source
*s
) {
2293 pa_source_output
*o
;
2296 pa_source_assert_ref(s
);
2297 pa_source_assert_io_context(s
);
2298 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
2300 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2305 /* Called from IO thread */
2306 pa_usec_t
pa_source_get_requested_latency_within_thread(pa_source
*s
) {
2307 pa_usec_t result
= (pa_usec_t
) -1;
2308 pa_source_output
*o
;
2311 pa_source_assert_ref(s
);
2312 pa_source_assert_io_context(s
);
2314 if (!(s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
2315 return PA_CLAMP(s
->thread_info
.fixed_latency
, s
->thread_info
.min_latency
, s
->thread_info
.max_latency
);
2317 if (s
->thread_info
.requested_latency_valid
)
2318 return s
->thread_info
.requested_latency
;
2320 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2321 if (o
->thread_info
.requested_source_latency
!= (pa_usec_t
) -1 &&
2322 (result
== (pa_usec_t
) -1 || result
> o
->thread_info
.requested_source_latency
))
2323 result
= o
->thread_info
.requested_source_latency
;
2325 if (result
!= (pa_usec_t
) -1)
2326 result
= PA_CLAMP(result
, s
->thread_info
.min_latency
, s
->thread_info
.max_latency
);
2328 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2329 /* Only cache this if we are fully set up */
2330 s
->thread_info
.requested_latency
= result
;
2331 s
->thread_info
.requested_latency_valid
= true;
2337 /* Called from main thread */
2338 pa_usec_t
pa_source_get_requested_latency(pa_source
*s
) {
2341 pa_source_assert_ref(s
);
2342 pa_assert_ctl_context();
2343 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
2345 if (s
->state
== PA_SOURCE_SUSPENDED
)
2348 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
2353 /* Called from IO thread */
2354 void pa_source_set_max_rewind_within_thread(pa_source
*s
, size_t max_rewind
) {
2355 pa_source_output
*o
;
2358 pa_source_assert_ref(s
);
2359 pa_source_assert_io_context(s
);
2361 if (max_rewind
== s
->thread_info
.max_rewind
)
2364 s
->thread_info
.max_rewind
= max_rewind
;
2366 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
))
2367 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2368 pa_source_output_update_max_rewind(o
, s
->thread_info
.max_rewind
);
2371 /* Called from main thread */
2372 void pa_source_set_max_rewind(pa_source
*s
, size_t max_rewind
) {
2373 pa_source_assert_ref(s
);
2374 pa_assert_ctl_context();
2376 if (PA_SOURCE_IS_LINKED(s
->state
))
2377 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MAX_REWIND
, NULL
, max_rewind
, NULL
) == 0);
2379 pa_source_set_max_rewind_within_thread(s
, max_rewind
);
2382 /* Called from IO thread */
2383 void pa_source_invalidate_requested_latency(pa_source
*s
, bool dynamic
) {
2384 pa_source_output
*o
;
2387 pa_source_assert_ref(s
);
2388 pa_source_assert_io_context(s
);
2390 if ((s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
2391 s
->thread_info
.requested_latency_valid
= false;
2395 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2397 if (s
->update_requested_latency
)
2398 s
->update_requested_latency(s
);
2400 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
2401 if (o
->update_source_requested_latency
)
2402 o
->update_source_requested_latency(o
);
2406 pa_sink_invalidate_requested_latency(s
->monitor_of
, dynamic
);
2409 /* Called from main thread */
2410 void pa_source_set_latency_range(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
2411 pa_source_assert_ref(s
);
2412 pa_assert_ctl_context();
2414 /* min_latency == 0: no limit
2415 * min_latency anything else: specified limit
2417 * Similar for max_latency */
2419 if (min_latency
< ABSOLUTE_MIN_LATENCY
)
2420 min_latency
= ABSOLUTE_MIN_LATENCY
;
2422 if (max_latency
<= 0 ||
2423 max_latency
> ABSOLUTE_MAX_LATENCY
)
2424 max_latency
= ABSOLUTE_MAX_LATENCY
;
2426 pa_assert(min_latency
<= max_latency
);
2428 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2429 pa_assert((min_latency
== ABSOLUTE_MIN_LATENCY
&&
2430 max_latency
== ABSOLUTE_MAX_LATENCY
) ||
2431 (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
));
2433 if (PA_SOURCE_IS_LINKED(s
->state
)) {
2439 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
2441 pa_source_set_latency_range_within_thread(s
, min_latency
, max_latency
);
2444 /* Called from main thread */
2445 void pa_source_get_latency_range(pa_source
*s
, pa_usec_t
*min_latency
, pa_usec_t
*max_latency
) {
2446 pa_source_assert_ref(s
);
2447 pa_assert_ctl_context();
2448 pa_assert(min_latency
);
2449 pa_assert(max_latency
);
2451 if (PA_SOURCE_IS_LINKED(s
->state
)) {
2452 pa_usec_t r
[2] = { 0, 0 };
2454 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
2456 *min_latency
= r
[0];
2457 *max_latency
= r
[1];
2459 *min_latency
= s
->thread_info
.min_latency
;
2460 *max_latency
= s
->thread_info
.max_latency
;
2464 /* Called from IO thread, and from main thread before pa_source_put() is called */
2465 void pa_source_set_latency_range_within_thread(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
2466 pa_source_assert_ref(s
);
2467 pa_source_assert_io_context(s
);
2469 pa_assert(min_latency
>= ABSOLUTE_MIN_LATENCY
);
2470 pa_assert(max_latency
<= ABSOLUTE_MAX_LATENCY
);
2471 pa_assert(min_latency
<= max_latency
);
2473 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2474 pa_assert((min_latency
== ABSOLUTE_MIN_LATENCY
&&
2475 max_latency
== ABSOLUTE_MAX_LATENCY
) ||
2476 (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) ||
2479 if (s
->thread_info
.min_latency
== min_latency
&&
2480 s
->thread_info
.max_latency
== max_latency
)
2483 s
->thread_info
.min_latency
= min_latency
;
2484 s
->thread_info
.max_latency
= max_latency
;
2486 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2487 pa_source_output
*o
;
2490 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2491 if (o
->update_source_latency_range
)
2492 o
->update_source_latency_range(o
);
2495 pa_source_invalidate_requested_latency(s
, false);
2498 /* Called from main thread, before the source is put */
2499 void pa_source_set_fixed_latency(pa_source
*s
, pa_usec_t latency
) {
2500 pa_source_assert_ref(s
);
2501 pa_assert_ctl_context();
2503 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) {
2504 pa_assert(latency
== 0);
2508 if (latency
< ABSOLUTE_MIN_LATENCY
)
2509 latency
= ABSOLUTE_MIN_LATENCY
;
2511 if (latency
> ABSOLUTE_MAX_LATENCY
)
2512 latency
= ABSOLUTE_MAX_LATENCY
;
2514 if (PA_SOURCE_IS_LINKED(s
->state
))
2515 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY
, NULL
, (int64_t) latency
, NULL
) == 0);
2517 s
->thread_info
.fixed_latency
= latency
;
2520 /* Called from main thread */
2521 pa_usec_t
pa_source_get_fixed_latency(pa_source
*s
) {
2524 pa_source_assert_ref(s
);
2525 pa_assert_ctl_context();
2527 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
)
2530 if (PA_SOURCE_IS_LINKED(s
->state
))
2531 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY
, &latency
, 0, NULL
) == 0);
2533 latency
= s
->thread_info
.fixed_latency
;
2538 /* Called from IO thread */
2539 void pa_source_set_fixed_latency_within_thread(pa_source
*s
, pa_usec_t latency
) {
2540 pa_source_assert_ref(s
);
2541 pa_source_assert_io_context(s
);
2543 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) {
2544 pa_assert(latency
== 0);
2545 s
->thread_info
.fixed_latency
= 0;
2550 pa_assert(latency
>= ABSOLUTE_MIN_LATENCY
);
2551 pa_assert(latency
<= ABSOLUTE_MAX_LATENCY
);
2553 if (s
->thread_info
.fixed_latency
== latency
)
2556 s
->thread_info
.fixed_latency
= latency
;
2558 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2559 pa_source_output
*o
;
2562 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2563 if (o
->update_source_fixed_latency
)
2564 o
->update_source_fixed_latency(o
);
2567 pa_source_invalidate_requested_latency(s
, false);
2570 /* Called from main thread */
2571 void pa_source_set_latency_offset(pa_source
*s
, int64_t offset
) {
2572 pa_source_assert_ref(s
);
2574 s
->latency_offset
= offset
;
2576 if (PA_SOURCE_IS_LINKED(s
->state
))
2577 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET
, NULL
, offset
, NULL
) == 0);
2579 s
->thread_info
.latency_offset
= offset
;
2582 /* Called from main thread */
2583 size_t pa_source_get_max_rewind(pa_source
*s
) {
2585 pa_assert_ctl_context();
2586 pa_source_assert_ref(s
);
2588 if (!PA_SOURCE_IS_LINKED(s
->state
))
2589 return s
->thread_info
.max_rewind
;
2591 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MAX_REWIND
, &r
, 0, NULL
) == 0);
2596 /* Called from main context */
2597 int pa_source_set_port(pa_source
*s
, const char *name
, bool save
) {
2598 pa_device_port
*port
;
2601 pa_source_assert_ref(s
);
2602 pa_assert_ctl_context();
2605 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s
->index
, s
->name
);
2606 return -PA_ERR_NOTIMPLEMENTED
;
2610 return -PA_ERR_NOENTITY
;
2612 if (!(port
= pa_hashmap_get(s
->ports
, name
)))
2613 return -PA_ERR_NOENTITY
;
2615 if (s
->active_port
== port
) {
2616 s
->save_port
= s
->save_port
|| save
;
2620 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) {
2621 struct source_message_set_port msg
= { .port
= port
, .ret
= 0 };
2622 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_PORT
, &msg
, 0, NULL
) == 0);
2626 ret
= s
->set_port(s
, port
);
2629 return -PA_ERR_NOENTITY
;
2631 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
2633 pa_log_info("Changed port of source %u \"%s\" to %s", s
->index
, s
->name
, port
->name
);
2635 s
->active_port
= port
;
2636 s
->save_port
= save
;
2638 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PORT_CHANGED
], s
);
2643 PA_STATIC_FLIST_DECLARE(pa_source_volume_change
, 0, pa_xfree
);
2645 /* Called from the IO thread. */
2646 static pa_source_volume_change
*pa_source_volume_change_new(pa_source
*s
) {
2647 pa_source_volume_change
*c
;
2648 if (!(c
= pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change
))))
2649 c
= pa_xnew(pa_source_volume_change
, 1);
2651 PA_LLIST_INIT(pa_source_volume_change
, c
);
2653 pa_cvolume_reset(&c
->hw_volume
, s
->sample_spec
.channels
);
2657 /* Called from the IO thread. */
2658 static void pa_source_volume_change_free(pa_source_volume_change
*c
) {
2660 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change
), c
) < 0)
2664 /* Called from the IO thread. */
2665 void pa_source_volume_change_push(pa_source
*s
) {
2666 pa_source_volume_change
*c
= NULL
;
2667 pa_source_volume_change
*nc
= NULL
;
2668 uint32_t safety_margin
= s
->thread_info
.volume_change_safety_margin
;
2670 const char *direction
= NULL
;
2673 nc
= pa_source_volume_change_new(s
);
2675 /* NOTE: There is already more different volumes in pa_source that I can remember.
2676 * Adding one more volume for HW would get us rid of this, but I am trying
2677 * to survive with the ones we already have. */
2678 pa_sw_cvolume_divide(&nc
->hw_volume
, &s
->real_volume
, &s
->soft_volume
);
2680 if (!s
->thread_info
.volume_changes
&& pa_cvolume_equal(&nc
->hw_volume
, &s
->thread_info
.current_hw_volume
)) {
2681 pa_log_debug("Volume not changing");
2682 pa_source_volume_change_free(nc
);
2686 nc
->at
= pa_source_get_latency_within_thread(s
);
2687 nc
->at
+= pa_rtclock_now() + s
->thread_info
.volume_change_extra_delay
;
2689 if (s
->thread_info
.volume_changes_tail
) {
2690 for (c
= s
->thread_info
.volume_changes_tail
; c
; c
= c
->prev
) {
2691 /* If volume is going up let's do it a bit late. If it is going
2692 * down let's do it a bit early. */
2693 if (pa_cvolume_avg(&nc
->hw_volume
) > pa_cvolume_avg(&c
->hw_volume
)) {
2694 if (nc
->at
+ safety_margin
> c
->at
) {
2695 nc
->at
+= safety_margin
;
2700 else if (nc
->at
- safety_margin
> c
->at
) {
2701 nc
->at
-= safety_margin
;
2709 if (pa_cvolume_avg(&nc
->hw_volume
) > pa_cvolume_avg(&s
->thread_info
.current_hw_volume
)) {
2710 nc
->at
+= safety_margin
;
2713 nc
->at
-= safety_margin
;
2716 PA_LLIST_PREPEND(pa_source_volume_change
, s
->thread_info
.volume_changes
, nc
);
2719 PA_LLIST_INSERT_AFTER(pa_source_volume_change
, s
->thread_info
.volume_changes
, c
, nc
);
2722 pa_log_debug("Volume going %s to %d at %llu", direction
, pa_cvolume_avg(&nc
->hw_volume
), (long long unsigned) nc
->at
);
2724 /* We can ignore volume events that came earlier but should happen later than this. */
2725 PA_LLIST_FOREACH(c
, nc
->next
) {
2726 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c
->hw_volume
), (long long unsigned) c
->at
);
2727 pa_source_volume_change_free(c
);
2730 s
->thread_info
.volume_changes_tail
= nc
;
2733 /* Called from the IO thread. */
2734 static void pa_source_volume_change_flush(pa_source
*s
) {
2735 pa_source_volume_change
*c
= s
->thread_info
.volume_changes
;
2737 s
->thread_info
.volume_changes
= NULL
;
2738 s
->thread_info
.volume_changes_tail
= NULL
;
2740 pa_source_volume_change
*next
= c
->next
;
2741 pa_source_volume_change_free(c
);
2746 /* Called from the IO thread. */
2747 bool pa_source_volume_change_apply(pa_source
*s
, pa_usec_t
*usec_to_next
) {
2753 if (!s
->thread_info
.volume_changes
|| !PA_SOURCE_IS_LINKED(s
->state
)) {
2759 pa_assert(s
->write_volume
);
2761 now
= pa_rtclock_now();
2763 while (s
->thread_info
.volume_changes
&& now
>= s
->thread_info
.volume_changes
->at
) {
2764 pa_source_volume_change
*c
= s
->thread_info
.volume_changes
;
2765 PA_LLIST_REMOVE(pa_source_volume_change
, s
->thread_info
.volume_changes
, c
);
2766 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2767 pa_cvolume_avg(&c
->hw_volume
), (long long unsigned) c
->at
, (long long unsigned) (now
- c
->at
));
2769 s
->thread_info
.current_hw_volume
= c
->hw_volume
;
2770 pa_source_volume_change_free(c
);
2776 if (s
->thread_info
.volume_changes
) {
2778 *usec_to_next
= s
->thread_info
.volume_changes
->at
- now
;
2779 if (pa_log_ratelimit(PA_LOG_DEBUG
))
2780 pa_log_debug("Next volume change in %lld usec", (long long) (s
->thread_info
.volume_changes
->at
- now
));
2785 s
->thread_info
.volume_changes_tail
= NULL
;
2790 /* Called from the main thread */
2791 /* Gets the list of formats supported by the source. The members and idxset must
2792 * be freed by the caller. */
2793 pa_idxset
* pa_source_get_formats(pa_source
*s
) {
2798 if (s
->get_formats
) {
2799 /* Source supports format query, all is good */
2800 ret
= s
->get_formats(s
);
2802 /* Source doesn't support format query, so assume it does PCM */
2803 pa_format_info
*f
= pa_format_info_new();
2804 f
->encoding
= PA_ENCODING_PCM
;
2806 ret
= pa_idxset_new(NULL
, NULL
);
2807 pa_idxset_put(ret
, f
, NULL
);
2813 /* Called from the main thread */
2814 /* Checks if the source can accept this format */
2815 bool pa_source_check_format(pa_source
*s
, pa_format_info
*f
) {
2816 pa_idxset
*formats
= NULL
;
2822 formats
= pa_source_get_formats(s
);
2825 pa_format_info
*finfo_device
;
2828 PA_IDXSET_FOREACH(finfo_device
, formats
, i
) {
2829 if (pa_format_info_is_compatible(finfo_device
, f
)) {
2835 pa_idxset_free(formats
, (pa_free_cb_t
) pa_format_info_free
);
2841 /* Called from the main thread */
2842 /* Calculates the intersection between formats supported by the source and
2843 * in_formats, and returns these, in the order of the source's formats. */
2844 pa_idxset
* pa_source_check_formats(pa_source
*s
, pa_idxset
*in_formats
) {
2845 pa_idxset
*out_formats
= pa_idxset_new(NULL
, NULL
), *source_formats
= NULL
;
2846 pa_format_info
*f_source
, *f_in
;
2851 if (!in_formats
|| pa_idxset_isempty(in_formats
))
2854 source_formats
= pa_source_get_formats(s
);
2856 PA_IDXSET_FOREACH(f_source
, source_formats
, i
) {
2857 PA_IDXSET_FOREACH(f_in
, in_formats
, j
) {
2858 if (pa_format_info_is_compatible(f_source
, f_in
))
2859 pa_idxset_put(out_formats
, pa_format_info_copy(f_in
), NULL
);
2865 pa_idxset_free(source_formats
, (pa_free_cb_t
) pa_format_info_free
);
2870 /* Called from the main thread. */
2871 void pa_source_set_reference_volume_direct(pa_source
*s
, const pa_cvolume
*volume
) {
2872 pa_cvolume old_volume
;
2873 char old_volume_str
[PA_CVOLUME_SNPRINT_VERBOSE_MAX
];
2874 char new_volume_str
[PA_CVOLUME_SNPRINT_VERBOSE_MAX
];
2879 old_volume
= s
->reference_volume
;
2881 if (pa_cvolume_equal(volume
, &old_volume
))
2884 s
->reference_volume
= *volume
;
2885 pa_log_debug("The reference volume of source %s changed from %s to %s.", s
->name
,
2886 pa_cvolume_snprint_verbose(old_volume_str
, sizeof(old_volume_str
), &old_volume
, &s
->channel_map
,
2887 s
->flags
& PA_SOURCE_DECIBEL_VOLUME
),
2888 pa_cvolume_snprint_verbose(new_volume_str
, sizeof(new_volume_str
), volume
, &s
->channel_map
,
2889 s
->flags
& PA_SOURCE_DECIBEL_VOLUME
));
2891 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);